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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Piezoelectric Plate (4cm)
Normal copper-based piezoelectric plate, ~4cm diameter.
Out of stock0.96 Inch Blue SPI OLED Display Module 7-Pin 128×64 – SSD1306
[LED/LCD Display] 0.96 Inch Blue SPI OLED Display Module 7-Pin 128×64 – SSD1306 The 0.96-inch Blue OLED Display Module is a compact graphical display based on the SSD1306 driver IC, featuring a 128×64 pixel resolution and blue monochrome display. This version has a 7-pin interface with a dedicated CS (Chip Select) pin, making it suitable for 4-wire SPI communication. The module is factory-configured for SPI and can also be modified for I2C/IIC communication on compatible board versions. With its compact size, wide viewing angle and low-power OLED technology, it is suitable for Arduino, ESP32, ESP8266, STM32, Raspberry Pi and other microcontroller projects. ⭐ Key Features 0.96-inch blue OLED display 128 × 64 pixel resolution SSD1306 driver IC 7-pin interface Dedicated CS (Chip Select) pin Factory configured for 4-wire SPI Supports SPI and I2C/IIC with appropriate configuration 3.3V/5V compatible on supported module versions No backlight required Low power consumption Wide viewing angle of more than 160° Compact PCB design Pre-soldered 7-pin male header Compatible with Arduino, ESP32, ESP8266, STM32 and Raspberry Pi projects 📋 Technical Specifications Display Type: OLED (Organic Light-Emitting Diode) Display Colour: Blue Display Size: 0.96 inch Driver IC: SSD1306 Resolution: 128 × 64 pixels Interface: SPI / I2C Default Interface: 4-wire SPI Input Voltage: 3.3V–5V Viewing Angle: >160° Module Dimensions: Approximately 27 × 27 × 4mm Operating Temperature: Approximately -30°C to +70°C Header: 7-pin male header, pre-soldered Display Type: Monochrome blue OLED 🔌 7-Pin Interface The 7-pin version provides the following connections: GND – Ground VCC – Power supply D0 / SCK / CLK – SPI clock D1 / MOSI / SDA – SPI data RES / RST – Display reset DC / A0 – Data/Command selection CS – Chip Select 🛠️ SPI Connection The module is normally supplied in 4-wire SPI configuration. For an Arduino Uno, a typical connection is: VCC → 5V GND → GND D0 → SCK / D13 D1 → MOSI / D11 RES → Digital I/O DC → Digital I/O CS → Digital I/O The dedicated CS pin allows the OLED to share the SPI bus with other devices such as SD cards or additional SPI peripherals. 🔄 I2C / IIC Configuration On compatible versions, the module can be converted from SPI to I2C by changing the appropriate resistor configuration on the PCB. The supplied board configuration may require: Moving the resistor from R3 to R1 Shorting R8 with solder Using D0 as SCL Using D1 as SDA Configuring DC for the I2C address The exact resistor positions can vary between board revisions, so check the markings on your particular PCB before modification. 🎯 Applications Arduino projects ESP32 projects ESP8266 projects STM32 development Raspberry Pi projects IoT devices Sensor displays Voltage/current meters Battery monitors Temperature displays Digital clocks Data loggers Portable electronic devices Robotics DIY measuring instruments Embedded systems Menu and status displays 💡 Advantages of OLED OLED technology is self-emissive, meaning the pixels produce their own light and do not require a conventional backlight. This provides high contrast, compact construction and a wide viewing angle while keeping power consumption relatively low. ⚠️ Important Notes This is the 7-pin SPI version, not the 6-pin version. The module is normally configured for SPI communication. Check the PCB labels before connecting the module. Do not exceed the specified supply voltage. Although many versions support 5V operation, the exact voltage tolerance can vary between board revisions. I2C operation may require hardware resistor modification. The actual PCB layout and component markings may vary slightly between production batches. Display colour: Blue. Libraries such as Adafruit SSD1306 and U8g2 can be used with compatible microcontrollers. 📦 Package Includes 1 × 0.96 Inch Blue SPI OLED Display Module
Type-C PD/QC/AFC Fast Charge Decoy Trigger Module – 5V/9V/12V/15V/20V Fixed Output
[Step UP Buck Converter] Type-C PD/QC/AFC Fast Charge Decoy Trigger Module – 5V/9V/12V/15V/20V Fixed Output The Type-C PD/QC/AFC Fast Charge Decoy Trigger Module is a compact USB Type-C power negotiation module designed to request a selected voltage from compatible USB Type-C fast chargers and power banks. It supports QC 2.0/3.0, AFC, PD 2.0 and PD 3.0 protocols, allowing compatible USB-C power sources to provide higher voltage outputs such as 5V, 9V, 12V, 15V or 20V. This module is useful for DIY electronics projects where a USB Type-C PD/QC charger needs to be used as a DC power source for equipment that does not have native USB-C fast-charging support. ⭐ Key Features USB Type-C fast-charge decoy/trigger module Supports PD 2.0 / PD 3.0 Supports QC 2.0 / QC 3.0 Supports Samsung AFC Fixed selectable voltage output Supports 5V / 9V / 12V / 15V / 20V output options Negotiates the required voltage from a compatible charger Suitable for USB-C power banks and PD adapters LED indicators for operating/status indication Compact and lightweight PCB design Useful for DIY power supply and electronics projects Plug-and-play operation with compatible USB-C power sources 📋 Technical Specifications Product Type: USB Type-C Fast Charge Trigger / Decoy Module Input Connector: USB Type-C Input Source: USB-C PD/QC/AFC compatible charger or power bank Supported Protocols: PD2.0, PD3.0, QC2.0, QC3.0, AFC Output Voltage: 5V / 9V / 12V / 15V / 20V Output Type: DC Voltage Selection: Fixed/selectable depending on module version Indicator: LED status indicators Application: DC power conversion and fast-charge voltage triggering 🔧 Applications Converting USB-C PD chargers into DC power supplies Powering DIY electronics projects Arduino and microcontroller projects LED applications Portable electronic equipment DIY laboratory power supplies DC motors and other suitable loads Router/modem power applications where the required voltage matches Powering electronics from USB-C PD power banks Replacing conventional DC adapters with USB-C PD sources 🛠️ How It Works The module does not boost the USB voltage itself. Instead, it communicates with a compatible USB-C power source and sends the required PD/QC/AFC negotiation request. For example, when connected to a compatible PD charger, the module can request: 5V → 9V → 12V → 15V → 20V The charger then provides the negotiated voltage at the module's DC output. ⚠️ Important Notes The connected USB-C charger or power bank must support the required fast-charging protocol and voltage. A standard 5V-only USB charger cannot normally provide 9V/12V/15V/20V through this module. Always verify the selected output voltage with a multimeter before connecting your device. Do not connect a device that requires a lower voltage than the selected output. The module is a trigger/decoy board, not a standalone DC-DC boost converter. Maximum available output power/current depends on the connected USB-C charger/power bank and the module's specifications. Do not short the output terminals. 20V output can damage 5V/9V/12V-only electronics if the wrong voltage is selected. Exact selectable voltages and current capability can vary between board versions. 📦 Package Includes 1 × Type-C PD/QC/AFC Fast Charge Decoy Trigger Module
Almirah Wardrobe Switch – 250V AC 6A Momentary Push-to-Off Switch
[Mechanical Switches] Almirah Wardrobe Switch – 250V AC 6A Momentary Push-to-Off Switch The Almirah Switch is a compact single-pole momentary push-to-off switch designed for use in almirahs, cupboards, wardrobes, cabinets, and furniture lighting applications. It provides instantaneous switching action and is suitable for applications where an electrical circuit needs to be switched according to the opening or closing of a cabinet or door. The switch features a high-grade polycarbonate body and brass contacts, providing reliable electrical conduction and durability for regular use. Its compact design is intended to fit standard almirah cutouts and supports panel or surface mounting with screw-type wire terminals. With a rating of 250V AC and 6A, an IP20 protection level, and a mechanical life of more than 10,000 operations, this switch is suitable for indoor furniture and cabinet applications. ⭐ Key Features 250V AC rated voltage 6A current rating Single-pole design Momentary push-button operation Push-to-Off action Instantaneous response High-grade polycarbonate construction Brass electrical contacts Compact design for standard almirah cutouts Panel or surface mounting Screw-type wire terminals Glossy white finish Mechanical life of >10,000 operations IP20 protection RoHS compliant 📋 Technical Specifications Product Type: Almirah Switch Switch Type: Momentary Actuator Type: Push Button Circuit Type: Single Circuit Number of Poles: Single Pole Rated Voltage: 250V AC Maximum Voltage: 250V AC Current Rating: 6A Maximum Current: 6A Response Time: Instantaneous Automation Grade: Manual Material: High-Grade Polycarbonate Contact Material: Brass Wire Terminal: Screw-Type Mounting Type: Panel / Surface Mount Protection Level: IP20 Finish Type: Glossy Color: White Operating Temperature: -10°C to +50°C Temperature Range: -10°C to +50°C Mechanical Life: >10,000 Operations Insulation Resistance: 100MΩ Minimum @ 500V DC Contact Resistance: 50mΩ Stroke: Standard Push-to-Off Action Size: Compact; fits standard almirah cutout Weight: Approximately 20g Number of Modules: Single Module UV Stabilized: Normal RoHS Compliance: Yes 🔌 Operation The switch provides a push-to-off momentary action. It is designed for applications where the switch operates automatically through the physical movement of a cupboard, wardrobe, almirah, or cabinet door. 🔧 Applications Almirah Lighting Cupboard Lighting Wardrobe Lighting Cabinet Lighting Furniture Lighting Storage Cabinet Applications Office Cabinets Home Furniture Control Panels Indoor Electrical Applications 🛠️ Installation The switch can be installed using its panel or surface mounting arrangement. Fit the switch into a suitable cutout and secure it firmly. Connect the wires to the screw-type terminals with the power supply switched off during installation. 📦 Package Includes 1 × Almirah Switch – White, 250V AC 6A ⚠️ Precautions Disconnect the power supply before installation or wiring. Do not exceed the 250V AC / 6A rating. Ensure screw terminals are tightened securely. Use suitable wiring for the connected load. Intended primarily for indoor applications. IP20 protection does not provide waterproof protection. Do not use in wet or exposed outdoor environments. Replace the switch if contacts become damaged or operation becomes unreliable. ❓ Frequently Asked Questions Q: What is the voltage and current rating?A: The switch is rated for 250V AC and 6A. Q: What type of switch is it?A: It is a single-pole momentary push-to-off switch. Q: Where can it be installed?A: It is designed for almirahs, cupboards, wardrobes, cabinets, and similar furniture applications. Q: What material is used for the switch?A: The body is made from high-grade polycarbonate, with brass contacts. Q: What is the mechanical life?A: The supplied specification states a mechanical life of more than 10,000 operations.
Out of stockGold AP-55 TPA3116D2 2×50W Bluetooth Stereo Digital Amplifier Board with USB, TF Card, FM & Remote
[Amplifier Board] Gold AP-55 TPA3116D2 2×50W Bluetooth Stereo Digital Amplifier Board with USB, TF Card, FM & Remote The Gold AP-55 is a compact Class-D stereo digital audio amplifier board based on the TPA3116D2 amplifier IC, designed for DIY Bluetooth speakers, home audio systems, portable speakers, bookshelf speakers, multimedia systems, and custom audio projects. Available product listings consistently identify the AP-55 as a dual-channel 50W + 50W amplifier, with a DC input range around 8–24V or 12–24V depending on the listing/version. The AP-55 combines the power amplifier with a multimedia player supporting Bluetooth 5.0, USB, TF/SD card, FM radio and AUX input. The Bluetooth device name is reported as GD-82EM, while the FM tuner covers 87.5–108.0MHz. It also includes an infrared remote control and a digital display for convenient operation. The TPA3116D2 Class-D amplifier provides efficient stereo amplification, making the board suitable for building compact but powerful audio systems. One detailed listing specifies support for 4Ω–8Ω speakers, with the commonly advertised maximum output of 50W per channel. ⭐ Key Features Gold AP-55 amplifier module TPA3116D2 Class-D amplifier IC 50W + 50W dual-channel stereo output Supports 4Ω–8Ω speakers Bluetooth 5.0 wireless audio Bluetooth device name: GD-82EM Built-in USB music player Built-in TF / SD card player Built-in FM radio FM frequency range 87.5–108.0MHz 3.5mm AUX input Infrared remote control Digital display Supports MP3 / WMA / WAV Power-off memory function Remembers the previous song and volume Compact design for DIY speaker projects High-efficiency Class-D amplification 📋 Technical Specifications Product Type: Stereo Class-D Digital Amplifier Board Model: Gold AP-55 Amplifier IC: TPA3116D2 Amplifier Class: Class-D Number of Channels: 2 / Stereo Output Power: 50W + 50W Maximum Total Output: 100W Speaker Impedance: 4Ω–8Ω Input Voltage: DC 8–24V (some listings specify 12–24V; verify the exact board version before use) Bluetooth Version: 5.0 Bluetooth Name: GD-82EM Bluetooth Range: Up to approximately 10–15m under suitable conditions Audio Formats: MP3 / WMA / WAV USB Support: Yes TF/SD Card Support: Yes FM Radio: Yes FM Frequency: 87.5–108.0MHz AUX Input: 3.5mm / Wired Audio Input Remote Control: IR Remote Remote Range: Approximately 4–7m Display: Digital Display Power-Off Memory: Yes Memory Function: Last song and volume Audio Input Modes: Bluetooth / USB / TF Card / FM / AUX Output: Dual-Channel Stereo Efficiency: Greater than 90% according to one detailed listing SNR: Approximately 102dB according to one detailed listing Distortion: Below 0.1% at normal listening levels according to one detailed listing Board Size: Approximately 70 × 50 × 20mm with shell, according to one listing 🎵 Audio & Playback Functions The AP-55 can switch between Bluetooth, USB, TF/SD Card, FM Radio and AUX sources. When Bluetooth mode is selected, users can pair a phone or other compatible device with GD-82EM. USB and TF/SD cards can be used for local music playback, while AUX provides a wired audio input. 📻 FM Radio The built-in FM tuner supports the 87.5–108.0MHz broadcast band. FM stations can be searched and selected using the onboard controls or remote control. 🎛️ Controls & Remote The module provides controls for functions such as previous track, next track, volume up, volume down, play/pause, mode selection and FM station selection. The infrared remote provides additional wireless control of playback, volume, mode and other supported functions. 🔧 Applications DIY Bluetooth Speakers High-Power Bluetooth Speaker Projects Portable Speaker Systems Bookshelf Speaker Systems Home Audio Projects Multimedia Speaker Systems USB MP3 Speaker Systems TF/SD Card Music Players FM Radio Speaker Projects Car Audio Projects Custom Wooden Speaker Cabinets Desktop Audio Systems Electronics DIY Projects 🛠️ Installation Connect a suitable DC power supply within the specified voltage range and observe the correct polarity. Connect the left and right speaker outputs to compatible 4Ω–8Ω speakers. Select Bluetooth, USB, TF/SD, FM or AUX according to the desired audio source. For maximum advertised output, a suitable 24V high-current power supply is recommended by one vendor; at lower supply voltages, available output power will be lower. 📦 Package Includes 1 × Gold AP-55 TPA3116D2 2×50W Bluetooth Amplifier Board 1 × IR Remote Control 1 × Required Connecting Wires/Cables (package contents may vary by seller/version) ⚠️ Precautions Verify the exact input voltage requirement of your AP-55 version before powering it. Do not exceed 24V DC where the board specification limits input to 24V. Check power polarity carefully before connection. Use speakers with a compatible 4Ω–8Ω impedance. Do not short-circuit the speaker output terminals. Ensure adequate ventilation during high-power operation. Use a suitable high-current power supply for high-output operation. Do not connect the speaker outputs together or directly to ground. Keep the board away from moisture and conductive materials. Incorrect wiring or excessive voltage can permanently damage the amplifier IC.
Electric Kettle Thermostat Switch T125 16A 250V Automatic Thermal Cut-Off Switch White
[Mechanical Switches] The Electric Kettle Thermostat Switch T125 is a high-quality temperature control switch used in electric kettles and various heating appliances. It incorporates a precision bimetal thermostat that senses temperature and automatically disconnects the heating element once the desired temperature is reached, helping prevent overheating and dry-boil conditions. Manufactured with heat-resistant engineering plastic and durable silver alloy contacts, the thermostat offers stable switching performance, excellent electrical reliability, and a long mechanical life. The white housing provides excellent heat resistance, electrical insulation, and durability for continuous use in household appliances. With a 16A current rating and 250V AC operating voltage, the thermostat is suitable for most standard electric kettles, hot water dispensers, electric boilers, and similar heating equipment. Its compact design allows quick installation and easy replacement of worn or damaged thermostat switches. 🔹 Key Features Automatic temperature control Built-in overheat protection Dry-boil safety protection Precision bimetal thermostat Rated for 16A current Heat-resistant white housing Silver alloy electrical contacts Stable and reliable switching performance Long electrical and mechanical life Easy installation and replacement 🔹 Technical Specifications Product Type: Electric Kettle Thermostat Switch Model: T125 Rated Voltage: 250V AC Rated Current: 16A Temperature Rating: T125 Switching Type: Automatic Thermal Cut-Off Contact Type: Normally Closed (NC) Reset Type: Automatic (Application Dependent) Mounting Type: Screw Mount Terminal Type: Quick Connect Terminals Housing Material: Heat-Resistant Engineering Plastic Housing Color: White Contact Material: Silver Alloy Operating Frequency: 50/60Hz Operating Temperature: Up to 125°C Ambient Rating 🔹 Applications Suitable for: Electric kettles Electric water boilers Tea makers Coffee makers Hot water dispensers Steam appliances Water heating equipment Household appliances Appliance repair and replacement 🔹 Package Includes 1 × Electric Kettle Thermostat Switch T125 16A White
Electric Kettle Thermostat Switch T125 16A 250V Automatic Thermal Cut-Off Switch Black
[Mechanical Switches] The Electric Kettle Thermostat Switch T125 is a high-quality temperature control switch used in electric kettles and various heating appliances. It incorporates a precision bimetal thermostat that senses temperature and automatically disconnects the heating element once the desired temperature is reached, helping prevent overheating and dry-boil conditions. Manufactured with heat-resistant engineering plastic and durable silver alloy contacts, the thermostat offers stable switching performance, excellent electrical reliability, and a long mechanical life. The black housing provides excellent heat resistance and durability for continuous use in household appliances. With a 16A current rating and 250V AC operating voltage, the thermostat is suitable for most standard electric kettles, hot water dispensers, electric boilers, and similar heating equipment. Its compact design allows quick installation and easy replacement of worn or damaged thermostat switches. 🔹 Key Features Automatic temperature control Built-in overheat protection Dry-boil safety protection High-quality bimetal thermostat Rated for 16A current Heat-resistant black housing Silver alloy electrical contacts Stable and reliable switching Long electrical and mechanical life Easy installation and replacement 🔹 Technical Specifications Product Type: Electric Kettle Thermostat Switch Model: T125 Rated Voltage: 250V AC Rated Current: 16A Temperature Rating: T125 Switching Type: Automatic Thermal Cut-Off Contact Type: Normally Closed (NC) Reset Type: Automatic (Application Dependent) Mounting Type: Screw Mount Terminal Type: Quick Connect Terminals Housing Material: Heat-Resistant Plastic Housing Color: Black Contact Material: Silver Alloy Operating Frequency: 50/60Hz Operating Temperature: Up to 125°C Ambient Rating 🔹 Applications Suitable for: Electric kettles Electric water boilers Tea makers Coffee makers Hot water dispensers Steam appliances Water heating equipment Household appliances Appliance repair and replacement 🔹 Package Includes 1 × Electric Kettle Thermostat Switch T125 16A Black
5 Pin Mini SPDT Relay 12V 10A 250V PCB Mount Electromagnetic Relay
[Relay Module, Relays] 12V PCB Mount Sugar Cube SPDT Relay – 5 Pin 10A The 12V PCB Mount Sugar Cube SPDT Relay is a compact Single Pole Double Throw (SPDT) electromagnetic relay designed for switching AC and DC electrical loads using a microcontroller, sensor, automation circuit, or other low-power control system. Its compact PCB-mount design makes it suitable for DIY electronics, home automation, security systems, switching circuits, motor control, lighting control, and embedded applications. The relay features a 12V DC coil and a 5-pin SPDT configuration consisting of two coil terminals, COM (Common), NO (Normally Open), and NC (Normally Closed) contacts. When the coil is energized, the internal contact switches between the NC and NO terminals. With contact ratings of up to 10A at 250V AC, 10A at 125V AC, 12A at 120V DC, and 10A at 28V DC, this relay is suitable for a wide range of electrical switching applications. ⭐ Key Features SPDT (Single Pole Double Throw) relay 12V DC coil Compact Sugar Cube design 5-pin configuration PCB mounting type 10A @ 250V AC contact rating 10A @ 125V AC contact rating 12A @ 120V DC contact rating 10A @ 28V DC contact rating Coil resistance: approximately 270Ω Approximately 45mA nominal coil current 50/60Hz frequency specification Fast switching response Suitable for microcontroller and sensor-controlled switching Ideal for automation and control applications 📋 Technical Specifications Product Type: PCB Mount Relay Relay Type: SPDT (Single Pole Double Throw) Contact Configuration: 1 Form C Number of Pins: 5 Coil Voltage: 12V DC Trigger Voltage: 12V DC Coil Resistance: 270Ω Nominal Coil Current: Approximately 45mA Frequency: 50/60Hz Maximum AC Load: 10A @ 250V AC Maximum AC Load: 10A @ 125V AC Maximum DC Load: 12A @ 120V DC Maximum DC Load: 10A @ 28V DC Operating Time: 10ms Release Time: 5ms Mounting Type: PCB Mount Contact Terminals: COM / NO / NC Coil Terminals: Coil End 1 / Coil End 2 🔌 Pin Configuration Coil End 1: One terminal of the 12V DC relay coil Coil End 2: Other terminal of the 12V DC relay coil COM: Common switching contact NO: Normally Open contact NC: Normally Closed contact When the relay coil is not energized, COM is connected to NC. When the 12V DC coil is energized, COM switches from NC to NO. 🛠️ How It Works The relay uses an electromagnetic coil to mechanically switch an electrical circuit. Applying 12V DC to the coil energizes the relay and changes the contact position. A load connected between COM and NC remains connected when the relay is inactive. A load connected between COM and NO remains disconnected until the relay coil is energized. This allows a low-power control circuit such as an Arduino, microcontroller, sensor, timer, or automation controller to control a higher-current AC or DC load. 🔧 Applications Arduino Projects Microcontroller Projects Sensor-Controlled Switching Home Automation Security Systems Lighting Control Fan Control Motor Control Pump Control Power Supply Switching Industrial Control Systems Embedded Electronics DIY Electronics Projects 📦 Package Includes 1 × 12V PCB Mount Sugar Cube SPDT Relay – 5 Pin 10A ⚠️ Precautions Use a suitable 12V DC supply for the relay coil. Do not exceed the specified contact voltage and current ratings. Check the COM, NO, NC, and coil terminals before wiring. Use suitable flyback protection when driving the relay coil from sensitive electronic circuits. Use appropriate suppression/protection components for inductive loads such as motors, solenoids, and coils. Provide sufficient PCB insulation and clearance when switching mains voltage. Disconnect power before changing or modifying wiring. Do not touch exposed mains-voltage terminals during operation.
3A 250V Blue Push Button Switch Momentary Type NO Lock Push Switch
[Mechanical Switches] The 3A 250V Blue Push Button Momentary Switch is a compact and reliable push-type switch designed for temporary ON/OFF control applications. It features a momentary non-locking mechanism, which means the switch remains active only while being pressed. In addition, the switch uses a Normally Open (NO) contact configuration. As a result, the electrical circuit closes only when the button is pressed and automatically returns to its original state after release. Because of its compact size and durable plastic construction, the switch is suitable for many electronic and industrial applications. Furthermore, the bright blue button improves visibility and allows easy identification during operation. The switch supports loads up to 3A at 250VAC, making it suitable for both AC and low-voltage DC control circuits. Moreover, the panel-mount design allows quick and secure installation into control panels and electronic enclosures. This push button switch is widely used in DIY electronics, industrial automation, robotics systems, alarm systems, doorbell circuits, and power control applications. 🔹 Key Features Momentary push button operation Normally Open (NO) contact type Non-locking push switch design Compact and lightweight body Bright blue push button cap Easy panel mounting installation Stable and reliable switching operation Suitable for AC and DC applications 🔹 Technical Specifications Switch Type: Momentary Push Button Switch Contact Type: Normally Open (NO) Operation Type: Non-Locking (Push Only) Rated Voltage: 250V AC Rated Current: 3A Button Color: Blue Mounting Type: Panel Mount Mounting Hole Diameter: Approx. 12mm Button Diameter: Approx. 12mm Total Length: Approx. 28mm Body Material: Plastic Contact Material: Silver-Plated Metal Terminal Type: 2 Pin Solder/Quick Connect Operating Temperature: -25°C to +85°C 🔹 Applications This push button switch is suitable for many electronic and electrical applications, including: DIY electronics projects Industrial control panels Automation systems Robotics projects Doorbell and alarm systems Power control circuits Electronic devices 🔹 Package Includes 1 × 3A 250V Blue Push Button Momentary Switch
3A 250V Yellow Push Button Momentary Type No Lock Push Only
[Mechanical Switches] The 3A 250V Yellow Push Button Momentary Switch is a compact and reliable push-type switch designed for temporary ON/OFF control applications. It features a momentary non-locking mechanism, which means the switch remains active only while being pressed. In addition, the switch uses a Normally Open (NO) contact configuration. As a result, the electrical circuit closes only when the button is pressed and automatically returns to its original state after release. Because of its compact size and durable plastic construction, the switch is suitable for many electronic and industrial applications. Furthermore, the bright yellow button improves visibility and allows easy identification during operation. The switch supports loads up to 3A at 250VAC, making it suitable for both AC and low-voltage DC control circuits. Moreover, the panel-mount design allows quick and secure installation into control panels and electronic enclosures. This push button switch is widely used in DIY electronics, industrial automation, robotics systems, alarm systems, doorbell circuits, and power control applications. 🔹 Key Features Momentary push button operation Normally Open (NO) contact type Non-locking push switch design Compact and lightweight body Bright yellow push button cap Easy panel mounting installation Stable and reliable switching operation Suitable for AC and DC applications 🔹 Technical Specifications Switch Type: Momentary Push Button Switch Contact Type: Normally Open (NO) Operation Type: Non-Locking (Push Only) Rated Voltage: 250V AC Rated Current: 3A Button Color: Yellow Mounting Type: Panel Mount Mounting Hole Diameter: Approx. 12mm Button Diameter: Approx. 12mm Total Length: Approx. 28mm Body Material: Plastic Contact Material: Silver-Plated Metal Terminal Type: 2 Pin Solder/Quick Connect Operating Temperature: -25°C to +85°C 🔹 Applications This push button switch is suitable for many electronic and electrical applications, including: DIY electronics projects Industrial control panels Automation systems Robotics projects Doorbell and alarm systems Power control circuits Electronic devices 🔹 Package Includes 1 × 3A 250V Yellow Push Button Momentary Switch
3A 250V Red Push Button Momentary Type No Lock Push Only
[Mechanical Switches] The 3A 250V Red Push Button Momentary Switch is a compact and reliable push-type switch designed for temporary ON/OFF control applications. It features a momentary non-locking mechanism, which means the switch remains active only while being pressed. In addition, the switch uses a Normally Open (NO) contact configuration. As a result, the circuit closes only when the button is pressed and automatically returns to its original state after release. Because of its compact size and durable construction, the switch is suitable for many electronic and electrical projects. Furthermore, the bright red button improves visibility and allows quick identification during operation. The switch supports loads up to 3A at 250VAC, making it suitable for low-power AC and DC control applications. Moreover, the simple panel-mount structure allows fast installation into enclosures and control panels. This push button switch is widely used in DIY electronics, robotics systems, industrial automation, doorbell circuits, audio equipment, and control applications. 🔹 Key Features Momentary push button operation Normally Open (NO) contact type Non-locking push switch design Compact and lightweight construction Durable plastic body Easy panel mounting installation Bright red push button cap Suitable for AC and DC applications 🔹 Technical Specifications Switch Type: Momentary Push Button Switch Contact Type: Normally Open (NO) Operation Type: Non-Locking Momentary Rated Voltage: 250V AC Rated Current: 3A Button Color: Red Mounting Type: Panel Mount Mounting Hole Diameter: Approx. 12mm Button Diameter: Approx. 12mm Total Body Length: Approx. 28mm Body Material: Plastic Contact Material: Metal Contacts 🔹 Applications This push button switch is suitable for many electronic and industrial applications, including: DIY electronics projects Robotics systems Industrial control panels Automation systems Doorbell circuits Audio equipment Power control applications Electronic devices 🔹 Package Includes 1 × 3A 250V Red Push Button Momentary Switch
ZK-MT21 bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX
[Amplifier Board] ZK-MT21 2.1 Channel Bluetooth 5.0 Audio Amplifier Module – 50W × 2 + 100W Subwoofer The ZK-MT21 2.1 Channel Bluetooth Audio Amplifier Module is a compact high-power stereo amplifier board designed for DIY Bluetooth speaker and home audio projects. It supports Bluetooth 5.0 and AUX audio input and provides dedicated left, right and subwoofer channels with adjustable volume, bass, treble, subwoofer volume and subwoofer frequency controls. With a suitable DC power supply and properly matched speakers, the module can deliver up to 50W + 50W for the left/right channels and up to 100W for the subwoofer channel. The board includes protection against reverse connection, overheating, overcurrent and short circuit. ⭐ Key Features Model: ZK-MT21 2.1 channel stereo audio amplifier Bluetooth 5.0 wireless audio input Bluetooth transmission distance up to approximately 15 meters under suitable conditions AUX wired audio input Left + Right + Subwoofer output Output up to 50W × 2 + 100W subwoofer Supports 4Ω–8Ω speakers Adjustable main volume Adjustable bass and treble for left/right channels Adjustable subwoofer volume Adjustable subwoofer frequency Subwoofer frequency adjustment range 20Hz–200Hz Reverse-polarity protection Overheat protection Overcurrent protection Short-circuit protection Compact amplifier board design Suitable for DIY Bluetooth speaker projects 📋 Technical Specifications Product Name: 2.1 Channel Audio Amplifier Module Model: ZK-MT21 Bluetooth Version: 5.0 Bluetooth Range: Approximately 15m Bluetooth Shielding: No shielding Audio Input: AUX + Bluetooth Channel: 2.1 Input Sensitivity: 500mV Amplifier Chip Solution: Domestic power amplifier chip Power Supply: DC 12–24V Recommended Supply Current: 5A or above Left Channel Output: <50W Right Channel Output: <50W Subwoofer Output: <100W Total Configuration: 50W × 2 + 100W Compatible Speaker Impedance: 4–8Ω Recommended Speaker Power: 20–100W Subwoofer Frequency Adjustment: 20Hz–200Hz Product Dimensions: 93 × 90 × 22mm Package Weight: Approximately 185g Protection: Reverse connection, overheat, overcurrent and short circuit ⚠️ Power Supply Warning:Do not connect this module directly to a 24V battery pack. Use a suitable regulated DC power supply as specified for the module. 🎛️ Control Functions MAIN-VOLUME: Controls the overall volume of the left, right and subwoofer channels. R&L CHANNEL-BASS: Adjusts bass level for the left and right channels. R&L CHANNEL-TREBLE: Adjusts treble level for the left and right channels. SUBWOOFER-VOLUME: Controls the subwoofer volume. SUBWOOFER-FREQ: Adjusts the subwoofer cutoff frequency from approximately 20Hz to 200Hz. 🔊 Speaker Selection Left and right channels can be connected to 4Ω–8Ω full-range or mid/high-frequency speakers. Recommended speaker power is 20W–100W. The subwoofer output should be connected to a suitable subwoofer speaker, not a regular full-range speaker. The subwoofer should have suitable low-frequency performance, with the source information recommending a frequency capability of at least 50Hz. Speaker impedance and power should be matched correctly with the amplifier. 🔌 Power Supply Selection The power supply is important for achieving proper amplifier performance and sound quality. A power supply with excessive ripple may increase background noise. Recommended supply: 18V / 19V / 24V with current above 5A Lower-voltage or lower-current supplies can be used, but available output power will be reduced. Insufficient supply current can cause voltage drop, abnormal operation or poor sound quality. If the amplifier is operated near maximum volume, an inadequate power supply may result in distortion. The power supply should have sufficient capacity for the actual amplifier load. Higher supply voltage can provide greater available output power within the module's specified operating range. 📱 Bluetooth & AUX Input The ZK-MT21 provides two audio input methods: Bluetooth Bluetooth 5.0 wireless audio input Bluetooth is the preferred input mode according to the supplied product information. Bluetooth supports automatic reconnection. Once Bluetooth is successfully connected, the module operates in Bluetooth mode. AUX Connect an external audio source through the AUX input. When using AUX, ensure the Bluetooth connection has been disconnected if necessary. 🔧 Applications DIY Bluetooth speakers 2.1 channel speaker systems Home audio projects Portable audio systems Subwoofer amplifier projects Custom speaker cabinets Desktop speaker systems Multimedia speaker systems Electronics and audio DIY projects Replacement/custom amplifier systems 🛠️ Installation & Usage Connect a suitable DC 12–24V power supply to the amplifier module. Connect the left and right speakers to their respective output terminals. Connect a suitable subwoofer to the subwoofer output. Ensure the speaker impedance is within the supported 4–8Ω range. Connect the audio source through Bluetooth or AUX. Adjust the main volume, bass, treble, subwoofer volume and frequency according to your requirements. Start with a low volume and gradually increase it. Ensure adequate ventilation and heat dissipation during high-power operation. ⚠️ Important Precautions Do not connect directly to a 24V battery pack. Use a suitable regulated DC power supply. Do not reverse the power supply polarity. Do not short-circuit the speaker outputs. Do not exceed the recommended speaker power and impedance. Ensure the power supply can provide sufficient current. Insufficient power may cause distortion or abnormal operation. Excessive load can cause the amplifier to heat up and activate thermal protection. Provide adequate ventilation during high-power operation. If distortion occurs at high volume, reduce the volume or use a more suitable power supply. The amplifier's actual output depends on the power supply, speaker impedance, audio input and overall system configuration. 📦 Package Includes 1 × ZK-MT21 Bluetooth 5.0 2.1 Channel Audio Amplifier Module
High Quality Ultra Flexible 18AWG Silicone Wire 1m (Red) + 1m (Black)
[Silicon Wire] The High-Quality 18AWG Silicone Wire 1m (Red) + 1m (Black) pair has a pretty big diameter as compared to the normal 18AWG wire used in RC projects for serving its specific purpose. This wire has low resistance and high current carrying capacity. These are also used in LiPO batteries to deliver power to ESC’s. Ideal for your RC project. It is super flexible and soft with a high strand count which means it is great for use in restrictive and compact areas. The wire is the first priority tool for carrying current from one circuit to other while their current carrying capacity is dependent upon the size of the wire. So the High Quality 18AWG Silicone Wire 1m (Red) + 1m (Black) both has the considerable diameter to suit your application. Please find out our more cable and wires. Click here Wires with the wide variety of silicon wire gauges and colors to suit your applications are available The 18AWG High Temperature Silicone Wire is a premium-quality flexible electrical cable designed for low to medium current applications requiring excellent flexibility and high-temperature resistance. Manufactured using high-purity tinned copper conductors with soft silicone rubber insulation, this wire provides outstanding electrical conductivity, corrosion resistance, and long service life. Rated for 600V and capable of operating continuously at temperatures up to 200°C, this silicone wire is suitable for battery packs, RC models, drones, LED lighting, robotics, power supplies, automotive wiring, solar systems, and DIY electronic projects. The tinned copper conductor ensures efficient current transfer with minimal voltage drop while resisting oxidation and corrosion. Its ultra-flexible silicone insulation allows easy routing through tight spaces and provides excellent durability in demanding environments. This package includes 1 meter of Red wire and 1 meter of Black wire, making it ideal for positive and negative wiring in electronic and electrical applications. ⭐ Features Premium 18AWG silicone insulated wire High-purity tinned copper conductor Ultra-flexible silicone insulation Rated for 600V operation Heat resistant up to 200°C Excellent electrical conductivity Corrosion-resistant tinned copper strands Easy to strip, solder, and terminate Soft, durable, and wear-resistant insulation Suitable for indoor and outdoor applications 📋 Technical Specifications Product Type: High Temperature Silicone Wire Wire Gauge: 18 AWG Conductor Material: Tinned Copper Insulation Material: High Temperature Silicone Rubber Rated Voltage: 600V Rated Temperature: 200°C Rated Current: 8A (Typical) Wire Type: Flexible Multi-Strand Marking: 18AWG 600V 200°C Wire Color: Red & Black Length: 1 Meter Red + 1 Meter Black (Total 2 Meters) 🔧 Applications Suitable for: Lithium Battery Packs RC Cars & RC Boats FPV Drones Model Aircraft Solar Power Systems LED Lighting Power Supplies Robotics Projects Arduino Projects ESP32 Projects Raspberry Pi Projects Automotive Wiring Electric Scooters & E-Bikes DIY Electronics Laboratory Equipment Industrial Control Panels 📦 Package Includes 1 × 18AWG High Temperature Silicone Wire – Red (1 Meter) 1 × 18AWG High Temperature Silicone Wire – Black (1 Meter)
High Quality Ultra Flexible 16AWG Silicone Wire 1m (Red) + 1m (Black)
[Silicon Wire] The High-Quality 16AWG Silicone Wire 1m (Red) + 1m (Black) pair has a pretty big diameter as compared to the normal 20AWG wire used in RC projects for serving its specific purpose. This wire has low resistance and high current carrying capacity. These are also used in LiPO batteries to deliver power to ESC’s. Ideal for your RC project. It is super flexible and soft with a high strand count which means it is great for use in restrictive and compact areas. The wire is the first priority tool for carrying current from one circuit to other while their current carrying capacity is dependent upon the size of the wire. So the High Quality 16AWG Silicone Wire 1m (Red) + 1m (Black) both has the considerable diameter to suit your application. Please find out our more cable and wires. Click here Wires with the wide variety of silicon wire gauges and colors to suit your applications are available The 16AWG High Temperature Silicone Wire is a premium-quality flexible electrical cable designed for high-current and high-temperature applications. Manufactured using high-purity tinned copper conductors with soft silicone rubber insulation, this wire offers excellent flexibility, superior electrical conductivity, and outstanding resistance to heat, moisture, chemicals, and aging. Rated for 600V and capable of operating at temperatures up to 200°C, this silicone wire is ideal for battery packs, RC models, drones, solar power systems, automotive wiring, LED lighting, power supplies, robotics, and various industrial and DIY electronic projects. The tinned copper conductor provides low resistance and excellent corrosion protection, ensuring efficient power transmission and long service life. Its ultra-flexible silicone insulation allows easy routing and installation, even in confined spaces or moving applications. This package includes 1 meter of Red wire and 1 meter of Black wire, making it perfect for positive and negative wiring in electronic and electrical projects. ⭐ Features Premium 16AWG silicone insulated wire High-purity tinned copper conductor Ultra-flexible silicone insulation Rated for 600V operation Heat resistant up to 200°C High current carrying capacity Excellent corrosion resistance Easy to strip, solder, and terminate Soft and durable construction Suitable for indoor and outdoor applications 📋 Technical Specifications Product Type: High Temperature Silicone Wire Wire Gauge: 16 AWG Conductor Material: Tinned Copper Insulation Material: High Temperature Silicone Rubber Rated Voltage: 600V Rated Temperature: 200°C Rated Current: 12.5A Wire Type: Flexible Multi-Strand Marking: 16AWG 600V 200°C Wire Color: Red & Black Length: 1 Meter Red + 1 Meter Black (Total 2 Meters) 🔧 Applications Suitable for: Lithium Battery Packs RC Cars & RC Boats FPV Drones Model Aircraft Solar Power Systems LED Lighting Power Supplies Robotics Projects Arduino Projects ESP32 Projects Raspberry Pi Projects Automotive Wiring Electric Bicycles & Scooters DIY Electronics Laboratory Equipment Industrial Control Panels 📦 Package Includes 1 × 16AWG High Temperature Silicone Wire – Red (1 Meter) 1 × 16AWG High Temperature Silicone Wire – Black (1 Meter)
High Quality Ultra Flexible 12AWG Silicone Wire 1m (Red) + 1m (Black)
[Silicon Wire] The High-Quality 12AWG Silicone Wire 1m (Red) + 1m (Black) pair has a pretty big diameter as compared to the normal 20AWG wire used in RC projects for serving its specific purpose. This wire has low resistance and high current carrying capacity. These are also used in LiPO batteries to deliver power to ESC’s. Ideal for your RC project. It is super flexible and soft with a high strand count which means it is great for use in restrictive and compact areas. The wire is the first priority tool for carrying current from one circuit to other while their current carrying capacity is dependent upon the size of the wire. So the High Quality 12AWG Silicone Wire 1m (Red) + 1m (Black) both has the considerable diameter to suit your application. Please find out our more cable and wires. Click here Wires with the wide variety of silicon wire gauges and colors to suit your applications are available Features : Super Flexible. High Strand Count. Pure Silicone Outer. Cul Standard: 12AWG Material: Tinned Copper Construction AWG: 680/0.8± 0.005mm Nominal Voltage: 600V Nominal Temprature: 200°C Nominal Current: 34A Marking: 12awg 600V 200°CDue to the use of ultra-fine tinned copper wire (0.08mm diameter), silicone wire can withstand high temperatures and maintain flexibility, allowing it to endure high current operation over the long term. Silicone wire is a flexible, durable, and heat-resistant electrical wire commonly used in high-temperature environments and demanding applications. Its insulation is made from silicone rubber, offering superior resistance to abrasion, chemicals, and extreme temperatures ranging from -60°C to 200°C. This wire is ideal for robotics, automotive, aerospace, and electronic projects due to its flexibility and reliability. Silicone wire typically features stranded copper conductors, ensuring excellent conductivity and durability. It is also flame-retardant, weather-resistant, and suitable for both indoor and outdoor use. Its versatility and high-performance properties make it a popular choice for professional and DIY electrical applications. Package Includes : 1 x High Quality 12AWG Silicone Wire 1m (Red) 1 x High Quality 12AWG Silicone Wire 1m (Black)
High Quality Ultra Flexible 10AWG Silicone Wire 1m (Black) + 1m (Red)
[Silicon Wire] High Quality Ultra Flexible 10AWG Silicone Wire 1m (Black) + 1m (Red) The High-Quality 10AWG Silicone Wire 1m (Red) + 1m (Black) pair has a pretty big diameter as compared to the normal 20AWG wire used in RC projects for serving its specific purpose. This wire has low resistance and high current carrying capacity. These are also used in LiPO batteries to deliver power to ESC’s. Ideal for your RC project. It is super flexible and soft with a high strand count which means it is great for use in restrictive and compact areas. The wire is the first priority tool for carrying current from one circuit to other while their current carrying capacity is dependent upon the size of the wire. So the High Quality 12AWG Silicone Wire 1m (Red) + 1m (Black) both has the considerable diameter to suit your application. Please find out our more cable and wires. Click here Wires with the wide variety of silicon wire gauges and colors to suit your applications are available Features : Cul Standard: 10AWG Material: Tinned Copper Construction AWG: 1050/0.8± 0.005mm Nominal Voltage: 600V Nominal Temprature: 200°C Nominal Current: 53A Marking: 10awg 600V 200°CDue to the use of ultra-fine tinned copper wire (0.08mm diameter), silicone wire can withstand high temperatures and maintain flexibility, allowing it to endure high current operation over the long term. Silicone wire is a flexible, durable, and heat-resistant electrical wire commonly used in high-temperature environments and demanding applications. Its insulation is made from silicone rubber, offering superior resistance to abrasion, chemicals, and extreme temperatures ranging from -60°C to 200°C. This wire is ideal for robotics, automotive, aerospace, and electronic projects due to its flexibility and reliability. Silicone wire typically features stranded copper conductors, ensuring excellent conductivity and durability. It is also flame-retardant, weather-resistant, and suitable for both indoor and outdoor use. Its versatility and high-performance properties make it a popular choice for professional and DIY electrical applications. Package Includes : 1 x High-Quality 10AWG Silicone Wire 1m (Black) 1 x High-Quality 10AWG Silicone Wire 1m (Red)
30A BLDC ESC Electronic Speed Controller with Connectors
[ESC] 30A BLDC ESC Electronic Speed Controller is specifically made for quadcopters and multi-rotors. Which provides faster and better motor speed control giving better flight performance compared to other available ESCs. 30A BLDC ESC Electronic Speed Controller can drive motors that consume current up to 30A. It works on 2-3S LiPo batteries. This electronic speed controller offers a battery eliminator circuit (BEC) that provides 5V and 2A to the receiver so we don’t need an extra receiver battery. This version of the ESC also includes backward-polarity protection and protection on the 5V receiver line, this means that if you accidentally attach a battery backward it won’t destroy your motor controller and other BEC won’t affect the ESC. If you are wandering to build a drone and don’t know what will be the best ESC for you then worry no more, we have got your back. At , we have everything for you to get started with your drone project. This particular ESC is recommended with A2212 brushless motor (1000kv, 1400kv, 2200kv). For your Convenience Same ESC without Connectors is also available Connections: 30A ESC wiring (Other products not included in this package): Warning: When we connect BLDC ESC directly to the remote control receiver; never ever switch off the remote control before switching off power to the BLDC ESC. Depending on the model of the remote control; it may result in full throttle applied to the motor and it will rotate at full speed. Features: High-quality MOSFETs for BLDC motor drive. Backward-polarity protection and protection on the 5V receiver line. High-performance microcontroller for best compatibility with all types of motors at greater efficiency. Fully programmable with any standard RC remote control. Heat sink with a high-performance heat transmission membrane for better thermal management. 3 start modes: Normal / Soft / Super-Soft, compatible with fixed-wing aircraft and helicopters. We can configure the throttle range to be compatible with any remote control available in the market. Package Includes: 1 x 30A BLDC ESC Electronic Speed Controller with Connectors.
High Quality Ultra Flexible 14AWG Silicone Wire 1m (Red) + 1m (Black)
[Silicon Wire] The High-Quality 14AWG Silicone Wire 1m (Red) + 1m (Black) pair has a pretty big diameter as compared to the normal 20AWG wire used in RC projects for serving its specific purpose. This wire has low resistance and high current carrying capacity. These are also used in LiPO batteries to deliver power to ESC’s. Ideal for your RC project. It is super flexible and soft with a high strand count which means it is great for use in restrictive and compact areas. The wire is the first priority tool for carrying current from one circuit to other while their current carrying capacity is dependent upon the size of the wire. So the High Quality 14AWG Silicone Wire 1m (Red) + 1m (Black) both has the considerable diameter to suit your application. Please find out our more cable and wires. Click here Wires with the wide variety of silicon wire gauges and colors to suit your applications are available Features : Cul Standard: 14AWG Material: Tinned Copper Construction AWG: 400/0.8± 0.005mm Nominal Voltage: 600V Nominal Temprature: 200°C Nominal Current: 20A Marking: 14awg 600V 200°C Due to the use of ultra-fine tinned copper wire (0.08mm diameter), silicone wire can withstand high temperatures and maintain flexibility, allowing it to endure high current operation over the long term.Silicone wire is a flexible, durable, and heat-resistant electrical wire commonly used in high-temperature environments and demanding applications. Its insulation is made from silicone rubber, offering superior resistance to abrasion, chemicals, and extreme temperatures ranging from -60°C to 200°C. This wire is ideal for robotics, automotive, aerospace, and electronic projects due to its flexibility and reliability. Silicone wire typically features stranded copper conductors, ensuring excellent conductivity and durability. It is also flame-retardant, weather-resistant, and suitable for both indoor and outdoor use. Its versatility and high-performance properties make it a popular choice for professional and DIY electrical applications. Similar Products Package Includes : 1 x High Quality 14AWG Silicone Wire 1m (Red) 1 x High Quality 14AWG Silicone Wire 1m (Black)
TG113 Bluetooth Speaker Circuit Board Module
[Audio Receiver] TG113 Bluetooth Speaker Circuit Board Module This simple Music player Board is actually what you need when you are looking for making a music system or your home theatre. It is a very perfect and small size music player, which all the makers and hobbyists can use to design their music player device like an iPod. his module has some built-in features like Bluetooth, FM, USB, SD-Card Slot, Aux & FM along with a very small amplifier which can only drive the speaker of earphones or a very low watt speaker of .2 watt – 5 watt. But, it’s always advisable to use a good quality amplifier with this module which can drive the speaker of your requirements as there is a lot of variation in the wattage rating of speakers available in the market so its hard to predict the speaker of your choice will work with this module or not. Features: Output: Single channel Digital Audio Output Input:- USB/SD Card Slot/Bluetooth/FM/AUX. DIY speakers and modified audio/car rare weapon Support MP3/WMA/WAV/ format music Power Source: USB & Battery Battery supply voltage: 5V Features/Specs: New and improve microchip technology Working voltage: 3.7V-5V DC Inbuilt sound sensor or mic for recording purposes Support: mp3/Bluetooth/USB/aux/FM Push buttons for easy handling Excellent sound quality Widely used in portable speakers Can drive a normal speaker directly Length: 43 mm Width: 38 mm Height: 11.5 mm Weight: 8 gm Applications: Stereo Headphones Wired stereo headsets and headphones Portable Bluetooth Stereo Speakers Datasheet: Package Includes : 1 x TG113 Bluetooth Speaker Circuit Board Module Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
Out of stock19S 2Amps Active Balancer Equalizer for LifePO4 Lithium Phosphate Battery
[Lithium Battery Protection Board] An active balancer or equilizer, balance you cells all the time during discharge and charge and maintain same voltage level along with the whole battery, Provides a lot better back up and mileage than a normal battery pack. Connect the balancer along with the bms Module. Balancer does not do work of BMS, make sure BMS and balancer both are different. Balancer make battery balance and give more back up and mileage, and helps your battery to maintain the long life. You can use this balancer to Any ah battery like 12ah, 18ah or 50ah 100ah etc. Balancer Specification – Suitable – 19S LifePO4 48volt Operating voltage range: 2.8v to 3.65volt Balance current: 2Amps Max Adjacent voltage difference is 0.1V or more (current is about 0.5-0.7A); Adjacent voltage difference is above 0.2V (maximum balance current is 2A); The smaller the differential voltage, the smaller the balance current. other Info Product Dimensions – 92 x 85 x 8 mm Item Weight – 122grm Wire length – 60cm Package Include – 1. Balancer Unit 2. Balancer Wires
Wuzhi Audio ZK-MT21 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX
[Amplifier Board] Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient, there will be sufficient output power. The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power. Please make sure that the power of the adapter power supply is greater than the actual working power of the amplifier! You can check our others amplifier boards here. FAQ: 1. How to choose a power supply? The power supply with the board is very important. The ripple of the selected power supply must be small. A power supply with a large ripple will cause the bottom noise of the power amplifier board to become larger and there will be current noise. The higher the voltage, the greater the current, and the more adequate the output power. The power supply is 12V1A and can be equipped with 3-4inch speakers. If it is above 19V 5A, there is no problem with 8-10 inches, and the power supply must be highly regarded. If the voltage is too low, the amplified sound will easily cause sound distortion. If the current is too low, the speaker will pull down the voltage, which will result in abnormal operation or poor sound quality. It is recommended to use a power supply of 18V19V24V with a current above 5A. If you only have 9V12V or 1A 2A power supply, it can be used but the power is low. When the volume is selected close to the maximum, it may be distorted and affect the sound quality. 2. How to choose a speaker? Regarding speaker types: commonly used speakers are generally 4-8 ohms, which can be used. The left and right channel speakers need to be connected to full-range speakers or mid- to high-frequency speakers, and the power is between 20W-100W. The subwoofer speaker cannot be connected to an ordinary speaker, and a speaker with a subwoofer speaker must be connected with a power between 20-100. The dive frequency of the subwoofer speaker must be at least 50 Hz. If your speaker has a low power, such as between 20W-50W, it can be used. You need a lower power supply voltage to prevent the speaker from burning after amplifying the sound. For example, choose a power supply below 15V. If you are a 50W-100W speaker, don't worry about the problem of speaker burnout. You can choose a 12-24V power supply. The higher the selected voltage, the greater the sound or power that can be output. The speaker power should not exceed 100W, otherwise it will affect the sound quality. 3. Introduction to audio input mode This audio power amplifier module has two audio input methods: one is Bluetooth input, the other is AUX input, Bluetooth mode is preferred. Bluetooth can be connected in any mode. As long as the Bluetooth connection is successful, it is in Bluetooth mode, and the Bluetooth mode supports automatic connection back. When Bluetooth is not connected, AUX plug-in is in AUX mode. It should be note that when using AUX mode, you need to confirm that the Bluetooth connection of this module has been disconnected. 4. How to adjust the main volume? The MAIN—VOLUME knob adjusts the main volume. Right-handed main volume increases, left-handed main volume decreases. The main volume affects the volume of the left and right channels and the subwoofer. 5. How to adjust the left and right channel high and low sounds? The R&L CHANNEL—BASS knob controls the bass, right-turning bass enhancement, left-turning bass attenuation. When the knob is in the rightmost position, the bass is neither enhanced nor attenuated. The R&L CHANNEL—TREBLE knob controls the treble, the right-handed treble is enhanced, and the left-handed treble is attenuated. When the knob is in the middle position, the high pitch is neither enhanced nor attenuated. Note when adjusting the treble and bass: when the treble or bass is adjusted to the maximum by turning right, if the sound is distorted, the gain of the treble or bass adjustment is too large. You need to turn the treble or bass knob to the left to lower the gain or turn the right Turn the MAIN-VOLUME knob to the left to reduce the total volume. 6. How to adjust the subwoofer? SUBWOOFER—VOLUME knob is used to control the volume of the subwoofer. Right-handed volume increases, and left-handed volume decreases. The SUBWOOFER—FREQ knob controls the cutoff frequency of the subwoofer. The right-hand frequency increases, and the left-hand frequency decreases. The frequency adjustment range is 20HZ-200HZ. 7. The voice is small and okay. When the voice becomes louder, the voice becomes muddy? The sound is distorted, please turn down the total volume or change to a higher voltage adapter power supply. 8. The sound is small, but when the sound becomes louder, the sound freezes? If the input power is insufficient, the power supply itself is protected against intermittent power failure. Please replace it with a higher-power power supply; or if the power is too large, the power amplifier board will generate serious heat and thermal protection has occurred. Reduce power usage or enhance heat dissipation. 9. What factors are related to the sound quality? The sound quality is not only related to the power amplifier module, but also related to the power supply, sound source, and the entire audio system. Basically, every aspect of the audio system will affect the sound quality, among which the main links are the audio transmission line, the audio power supply, the tone circuit, the power amplifier circuit, the speakers and the surrounding environment. The sound quality is the best only when the sound source, power supply, amplifier module and speakers are matched. Feature: Product Name: 2.1 channel audio amplifier module Product Model: ZK-MT21 Bluetooth Version: 5.0 (no shielding, 15 meters) Input Sensitivity: 500mV Audio Input: AUX + Bluetooth Channel: 2.1 Chip Solution: Domestic power amplifier chip Power Range: DC 12-20 V / 5A above (Do not connect to 24V battery pack) Adapter Speaker: 20-100 W, 4-8 Ω Output Power: Left and right channels <50W, Subwoofer <100W Protection Mechanism: Anti reverse connection. Overheat. Overcurrent. Short circuit Product Dimensions: 93mm*90mm*22mm Package Weight : about 185g (packaging) Package Includes: 1 x ZK-MT21 bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX
Out of stockMC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System
[Magnetic Sensor] If you want to Apply Extra Security for your house then this Magnetic Switch is needed for you. This magnetic switch is used for triggering an alarm or ON/OFF light inside a cupboard sliding door In-home alarm systems you need many sensors like proximity sensors, Heat detection sensors, and Magnetic door sensors to determine the safety status of the home. In these sensors door sensors are important as these determine whether the gate is open or closed. This is an MC-38 Door Window Sensor Magnetic Switch Home Alarm System Normally Closed type which you can install on your door and use it with your home alarm system. It is very easy to install and conceal and can be easily used in places like your home, office, and hotels. Connection Diagram of MC-38 With Arduino: Features : Easy to install Strong concealment The magnetic sensor alarm, controls the switch of the circuit via the built-in magnet Alarm when someone intrudes into your places Can be used in places like apartments, hotels, offices, etc. Ideal for residential or commercial use. Designed to do embedded in the door or window frame. Package Includes : 1 x MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System. 4 x M5 screws for fitting.
Nickel Strip 0.15mm X 5mm 1P Plane Coated Nickel Welding Strip For 18650 Lithium Battery Pack 1 Meter
[Nickel Strip] Nickel Plated Strip is best suitable for spot welding in the 18650 Lithium-Ion battery pack. Nickle Strip is generally useful in the welding of battery points together to connect the batteries in combinations. These Nickel Plated strips are popular because of their good performance while soldering as it gets soldered very quickly; easily with normal soldering metal with High tensile tension and Low resistivity. They are mainly useful in the manufacture of nickel-hydrogen batteries, lithium batteries; high magnification power tools batteries, laptop batteries, battery combination with HM. Features: High resistance to corrosion High Tensile Tension. Low Resistivity. Useful for battery points welding. Package Includes: 1 x 1 Meter- Nickle Plated Strip 5mm x 0.12mm