All products · 75 of 1440
Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
IOT Plug & Play
MCU: ESP8266/ESP32 based (Wi-Fi 2.4GHz). Supply: 5V input, onboard 3.3V regulation. Protocols: MQTT/HTTP. Cloud/App support. GPIO with pre-wired ports. Typical sensors: DHT11/22, LDR, relay module, IR, PIR.
Piezoelectric Plate (4cm)
Normal copper-based piezoelectric plate, ~4cm diameter.
Pulse Rate Heart Sensor
Pulse rate sensor (finger-based, worn on finger or earlobe). 3-5V working voltage.
BenQ MOBIUZ EX271 27-Inch QHD 180Hz Fast IPS Gaming Monitor
[Monitor] BenQ MOBIUZ EX271 27-Inch QHD 180Hz Fast IPS Gaming Monitor Level up your gaming experience with 2560 x 1440 QHD resolution, 180Hz refresh rate, 1ms MPRT response time, and AMD FreeSync Premium. Features HDRi intelligent auto-brightness tuning and built-in 2.1 channel treVolo sound with integrated subwoofer. ⭐ Key Features - 27" QHD (2560 x 1440) Fast IPS panel - Ultra-smooth 180Hz refresh rate with 1ms MPRT - Proprietary HDRi technology optimizes HDR images based on room lighting - 2.1 channel treVolo speakers with 5W woofer and custom audio modes - Light Tuner with 20 color level adjustments to spot hidden enemies 📋 Technical Specifications - Panel: 27" Fast IPS - Refresh Rate: 180Hz - Response Time: 1ms (MPRT) / 2ms (GtG) - FreeSync: AMD FreeSync Premium - Video Ports: 2x HDMI 2.0, 1x DisplayPort 1.4 📦 Package Includes - 1 x BenQ MOBIUZ EX271 Gaming Monitor - 1 x Ergonomic Tilt/Swivel Stand, DP Cable, Power Cable
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
KWS-MX18 10-in-1 USB Tester Digital LCD Voltage, Current & Power Meter
[Ammeter and Voltmeter] KWS-MX18 10-in-1 USB Tester – Digital LCD Voltage, Current & Power Meter The KWS-MX18 10-in-1 USB Tester is a compact multifunction digital testing instrument designed for monitoring and evaluating USB chargers, power banks, USB ports, mobile charging systems, and other DC power sources. It provides real-time measurement of voltage, current, power, capacity, energy, charging time, resistance, and internal temperature on its digital display. The tester supports a DC voltage range of 4–30V and current measurement up to approximately 5.1A, with power measurement up to 150W. It also provides capacity and energy monitoring, making it useful for checking the actual charging performance and capacity of USB power supplies and power banks. ⭐ Key Features 10-in-1 multifunction USB tester Digital LCD display Real-time voltage and current monitoring Measures power consumption Measures accumulated charging capacity Measures energy consumption Charging time measurement Charging resistance measurement Internal temperature measurement Positive and negative voltage measurement Stores measurement data in 9 groups Power-off memory function Compact and lightweight design Suitable for USB charger and power-bank testing Supports QC2.0 / QC3.0 according to available product information 📋 Technical Specifications Product Type: 10-in-1 USB Digital Tester Model: KWS-MX18 Input Voltage Range: DC 4–30V Current Measurement: 0–5.1A Power Measurement: 0–150W Capacity Measurement: 0–999999mAh Energy Measurement: 0–999999mWh Timing Range: 0–99 Hours Charging Resistance: 0–999.9Ω Internal Temperature: 0–80°C Positive Voltage Measurement: 0–10V Negative Voltage Measurement: 0–10V Memory Groups: 1–9 Display: Digital LCD Material: ABS Dimensions: Approximately 56.6 × 24.7 × 11.2mm Weight: Approximately 13.9g Input Connector: USB Output Connector: USB Function Button: Yes 🔍 10 Measurement Functions Voltage: 4–30V DC Current: 0–5.1A Power: 0–150W Capacity: 0–999999mAh Energy: 0–999999mWh Charging Time: 0–99 hours Charging Resistance: 0–999.9Ω Positive Voltage: 0–10V Negative Voltage: 0–10V Internal Temperature: 0–80°C 💾 Memory Function The KWS-MX18 can store charging measurement information in 9 separate memory groups. This allows you to compare charging capacity and energy measurements from different chargers or devices. The stored data can be viewed using the function button, and an individual memory group can be cleared by holding the button for approximately 3 seconds. 🔘 Button Functions Single Press: View stored measurement data from memory groups 1–9. Long Press: Clear the currently selected memory group. Double Press: Change the display page. Calibration: The device supports voltage and current calibration according to the supplied manual. 🔌 Applications USB Charger Testing Mobile Charger Testing Power Bank Testing USB Port Testing Mobile Phone Charging Analysis USB Cable Testing Power Supply Monitoring DC Power Measurement Electronics Troubleshooting DIY Electronics Projects Charger Performance Testing Battery Charging Analysis 🛠️ How to Use Connect the KWS-MX18 in-line between the USB power source and the USB-powered device. Once powered, the LCD displays the measured electrical parameters. You can use the function button to change display pages and access stored measurement data. It is particularly useful for comparing chargers, power banks, cables, and USB ports by monitoring actual voltage, current, power, capacity, and energy delivered. 📦 Package Includes 1 × KWS-MX18 10-in-1 USB Digital Tester ⚠️ Color Note: Color: White / Black Color will be shipped depending on stock availability. Any one color (White or Black) may be shipped based on available stock. Specific color cannot be guaranteed. ⚠️ Precautions Do not exceed the specified 30V DC input voltage. Do not exceed the specified current measurement range. Ensure correct USB connection direction before use. Keep the tester away from water and excessive moisture. Do not use it for measuring mains AC voltage. The device is intended for DC/USB power measurement. Actual measurement accuracy can depend on the connected source, load, cable, and operating conditions.
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.
XH-W1219 12V Digital Temperature Controller Module with Dual LED Display & Waterproof NTC Sensor
[Relay Module, Temperature Sensor] 🌡️ XH-W1219 12V Digital Temperature Controller Module with Dual LED Display & Waterproof NTC Sensor Dual LED Display • 12V DC Operation • 10A Relay Output • Heating & Cooling Modes • Waterproof NTC Sensor The XH-W1219 12V Digital Temperature Controller Module is a high-precision thermostat controller designed for automatic temperature monitoring and control in heating and cooling applications. Powered by 12V DC, this module features a dual LED display that simultaneously shows the current temperature and set temperature, making operation more convenient than the popular W1209 controller. Equipped with a waterproof NTC 10K temperature sensor, the XH-W1219 accurately measures temperatures from -50°C to +110°C. The onboard 10A relay output can directly control heaters, cooling fans, pumps, compressors, and other electrical loads within its rated capacity. The module is based on a Nuvoton microcontroller, which stores all settings in non-volatile memory, ensuring that user configurations are retained even after power loss. It supports both Heating (H) and Cooling (C) modes, adjustable hysteresis, temperature calibration, delay start, and high-temperature alarm functions. Ideal for incubators, aquariums, refrigeration systems, greenhouse automation, HVAC equipment, battery temperature monitoring, and industrial automation, the XH-W1219 provides reliable and accurate temperature control in a compact module. ⭐ Features Dual LED display for simultaneous temperature and setpoint display Operates on 12V DC High-accuracy waterproof NTC 10K temperature sensor Temperature control range from -50°C to +110°C Supports Heating and Cooling modes Built-in 10A relay output Adjustable temperature hysteresis Temperature calibration function Adjustable relay delay start High-temperature alarm function Stores settings in non-volatile memory Easy configuration using three push buttons High measurement accuracy (0.1°C resolution) Based on a Nuvoton MCU Compact PCB design with mounting holes 📋 Technical Specifications Product Type: Digital Temperature Controller Module Model: XH-W1219 Operating Voltage: 12V DC Display: Dual 3-Digit LED (Current Temperature & Set Temperature) Temperature Sensor: Waterproof NTC 10K Thermistor Temperature Control Range: -50°C to +110°C Temperature Resolution: 0.1°C Temperature Calibration: -10°C to +10°C Relay Output: 10A (Maximum) Relay Contact Rating: Up to 120VAC 10A / 14VDC 10A Control Modes: Heating (H) / Cooling (C) Hysteresis Setting: 0.1°C to 30°C Delay Start: 0–10 Minutes High Temperature Alarm: -49°C to +110°C Memory: Non-Volatile Parameter Storage Controller: Nuvoton MCU Dimensions: Approx. 60 × 44 × 17 mm Weight: Approx. 22 g (may vary slightly by manufacturer) ⚙️ Parameter Functions Parameter Description P0 Heating (H) / Cooling (C) Mode Selection P1 Temperature Hysteresis (Return Difference) P2 Maximum Temperature Limit P3 Minimum Temperature Limit P4 Temperature Calibration P5 Relay Delay Start (0–10 Minutes) P6 High Temperature Alarm Setting 🔧 Applications Suitable for: Egg Incubators Aquarium Temperature Control Greenhouse Automation Refrigeration Systems Cooling Fans Heating Elements Water Heaters HVAC Systems Fermentation Equipment Battery Temperature Monitoring Industrial Automation Laboratory Equipment DIY Electronics Smart Home Projects Arduino & Raspberry Pi Projects (Relay Interface) 📦 Package Includes 1 × XH-W1219 12V Digital Temperature Controller Module 1 × Waterproof NTC 10K Temperature Sensor ⚠️ Note Operates only on 12V DC. The relay output is rated for 10A maximum. For higher-power loads, use an external contactor or relay. Sensor cable can be extended if required using appropriate wiring. Product appearance or PCB color may vary slightly depending on the manufacturing batch.
XH-M401 DC-DC Step Down Buck Converter Power Supply Module XL4016E1
[Step Down Buck Converter] ⚡ XL4016 12A DC-DC Step-Down Buck Converter Module Adjustable Power Supply 12A High Current • Adjustable Output • Up to 96% Efficiency • Ideal for Battery Charging & Power Supply Applications The XL4016 DC-DC Step-Down Buck Converter Module is a high-performance switching voltage regulator designed to efficiently convert higher DC input voltages into a stable, adjustable lower output voltage. Based on the XL4016 PWM Buck Converter IC, this module supports input voltages from 8V to 36V DC and provides an adjustable output voltage from 1.25V to 32V, making it suitable for a wide range of power supply applications. Capable of delivering up to 12A output current with conversion efficiencies of up to 96%, the module features built-in thermal shutdown, current limiting, and short-circuit protection for safe and reliable operation. Its compact design and excellent voltage regulation make it ideal for powering electronic projects, battery charging systems, LED lighting, industrial equipment, communication devices, and laboratory power supplies. ⭐ Features Based on the XL4016 high-performance buck converter IC Wide input voltage range of 8V–36V DC Adjustable output voltage from 1.25V–32V DC Supports output current up to 12A High conversion efficiency up to 96% Built-in thermal shutdown protection Built-in over-current protection Built-in output short-circuit protection Excellent line and load regulation Compact PCB design Suitable for battery charging and DC power applications 📋 Technical Specifications Product Type: DC-DC Buck Converter Module Model: XL4016 (XH-M401 / HW-439 / HW-674) Converter Type: Step-Down (Buck) Input Voltage: 8V–36V DC Output Voltage: 1.25V–32V DC (Adjustable) Maximum Output Current: 12A Maximum Conversion Efficiency: Up to 96% Load Regulation: ±0.5% Voltage Regulation: ±0.5% Switching Frequency: 180kHz Protection Features: Over-Current Protection Thermal Shutdown Protection Output Short-Circuit Protection PCB Size: 60 × 40 mm Operating Principle: PWM Step-Down Regulation 🔧 Applications Suitable for: Adjustable DC Power Supplies Lithium Battery Charging Lead Acid Battery Charging Solar Power Systems LED Drivers LCD Monitors LCD Televisions Portable Instruments Telecommunication Equipment Networking Equipment Robotics Projects Arduino Projects ESP32 Projects Industrial Automation DIY Electronics 📦 Package Includes 1 × XL4016 12A DC-DC Step-Down Buck Converter Module ⚠️ Note This is a step-down (buck) converter; the input voltage must always be higher than the required output voltage. Adjust the output voltage before connecting sensitive electronic devices. Product may be supplied as XH-M401, HW-439, or HW-674, depending on stock availability. All variants offer equivalent functionality.
220-240V AC Swing Motor Gear Motor for Air Cooler Synchronous Motor
[AC Motor] The 220-240V AC Swing Motor Gear Motor is a compact synchronous motor specially designed for air cooler oscillation and swing movement applications. It delivers smooth and stable low-speed rotation, making it ideal for automatic airflow control systems. In addition, the motor operates directly on standard 220-240V AC power, eliminating the need for external driver circuits. As a result, it can be easily integrated into household appliances and industrial cooling equipment. Because of its synchronous motor design, the motor maintains stable rotational speed based on the AC supply frequency. Furthermore, the built-in gear reduction mechanism provides controlled torque and smooth swing movement with low noise operation. The motor is designed for continuous duty applications and features low power consumption with reliable long-term performance. Moreover, the compact body and screw-mount design allow quick installation and easy replacement in air coolers and oscillation systems. This synchronous swing motor is widely used in air coolers, ventilation systems, oscillating fans, automation projects, and household appliances. 🔹 Key Features Designed for air cooler swing operation Operates directly on 220-240V AC supply Smooth synchronous gear motor operation Stable low-speed rotation Low noise and low power consumption Compact and lightweight construction Durable internal gear mechanism Suitable for continuous operation 🔹 Technical Specifications Product Type: AC Synchronous Swing Motor Motor Type: Gear Reduction Synchronous Motor Operating Voltage: 220V–240V AC Rated Frequency: 50/60Hz Rotation Speed: Typically 4–6 RPM (depends on model) Power Consumption: Approx. 4W–5W Rotation Direction: CW / CCW Gear Mechanism: Internal Reduction Gear Shaft Type: Metal Round-Shaft Mounting Type: Screw Mount Insulation Class: Class E Body Material: Metal + Plastic Operating Temperature: -10°C to +55°C Noise Level: Low Noise Operation Duty Cycle: Continuous Duty Application Type: Swing / Oscillation Mechanism 🔹 Working Principle This motor works using synchronous AC motor technology, where the rotor rotates according to the AC supply frequency. The internal reduction gears decrease the motor speed while increasing torque, allowing smooth and controlled oscillation movement. 🔹 Applications This swing motor is suitable for many electrical and mechanical applications, including: Air coolers Oscillating fans Ventilation systems Swing control mechanisms Household appliances Automation systems DIY electronics projects 🔹 Package Includes 1 × 220-240V AC Swing Motor Gear Motor
HLK-5M05 Hi-Link 5V 5W AC to DC Power Supply Module Isolated SMPS PCB Mount
[AC DC Power Supply Module] The HLK-5M05 Hi-Link 5V 5W AC to DC Power Supply Module is a compact isolated switching power supply designed for converting high-voltage AC input into a stable 5V DC output. It is widely used in embedded systems, automation projects, smart home devices, and industrial electronics. Unlike traditional transformer-based power supplies, this module integrates advanced switching power technology into a compact PCB-mount design. As a result, it offers high efficiency, low heat generation, and reliable long-term performance. In addition, the module supports a wide input voltage range from 90V AC to 264V AC, making it suitable for global power standards. Furthermore, the isolated design improves safety and helps protect connected electronic circuits. The HLK-5M05 includes built-in short-circuit, overload, and overcurrent protection, ensuring safe and stable operation. Moreover, its low ripple and low noise output make it suitable for sensitive electronic devices and microcontroller circuits. Because of its ultra-compact size and PCB mounting capability, the module is easy to integrate into custom electronic products and DIY projects. Therefore, it is commonly used in IoT systems, smart switches, automation controllers, industrial instruments, and communication equipment. 🔹 Key Features Stable 5V DC output 5W isolated switching power supply Wide AC input voltage support Compact PCB mount design Low ripple and low noise output Built-in overload and short-circuit protection High efficiency and reliability UL and CE compliant design Low no-load power consumption Suitable for industrial and DIY applications 🔹 Technical Specifications Model: HLK-5M05 Product Type: AC to DC Switching Power Supply Module Input Voltage: 90V – 264V AC Rated Input Voltage: 100V – 240V AC Output Voltage: 5V DC Output Power: 5W Maximum Output Current: 1000mA Short-Term Peak Current: ≥1200mA Input Frequency: 50/60Hz Maximum Input Current: ≤0.2A Efficiency at 220V AC: ≥70% Efficiency at 110V AC: ≥69% Ripple & Noise: ≤70mVp-p Voltage Regulation: ±0.2% Load Regulation: ±0.5% Isolation Type: High Isolation Cooling Method: Natural Air Cooling Working Temperature: -20°C to +60°C Storage Temperature: -40°C to +80°C Relative Humidity: 5% – 95% RH Mounting Type: PCB Mount Safety Protection: Overload & Short-Circuit Protection 🔹 Applications This AC to DC module is suitable for many electronic and industrial applications, including: Smart home systems IoT devices Automation controllers Industrial control systems Communication equipment DIY electronics projects Embedded systems Power supply circuits 🔹 Package Includes 1 × HLK-5M05 Hi-Link 5V 5W AC to DC Power Supply Module
Out of stock1.3 Inch I2C IIC 128×64 OLED Display Module – White
[LED/LCD Display Module] The 1.3 Inch I2C 128×64 OLED Display Module is a compact, high-contrast display designed for Arduino, ESP32, NodeMCU, Raspberry Pi, and other microcontroller-based projects. This module uses OLED (Organic Light Emitting Diode) technology, providing bright white pixels with excellent contrast and wide viewing angles. Powered by the SSH1106 controller chip, the display offers smooth graphics rendering and reliable performance. With a resolution of 128×64 pixels, it can display text, graphics, icons, and sensor data clearly even in small embedded systems. The module communicates using the I2C (IIC) interface, requiring only 4 pins (VCC, GND, SDA, SCL), which helps save valuable GPIO pins on your microcontroller. It operates within a voltage range of 3.3V to 5V, making it compatible with most development boards. Unlike traditional LCD displays, OLED displays do not require a backlight because each pixel emits its own light. This results in lower power consumption, better contrast, and faster response times. Due to its compact size, lightweight design, and simple wiring, the display module is ideal for IoT devices, sensor monitors, battery indicators, portable electronics, robotics projects, and DIY electronics applications. ⭐ Features 1.3 Inch OLED Display Module 128 × 64 pixel resolution White pixel display SSH1106 display controller I2C / IIC communication interface Requires only 4 pins High contrast and wide viewing angle Low power consumption Compatible with Arduino, ESP32, NodeMCU, Raspberry Pi Ideal for embedded and IoT projects 🔧 Technical Specifications Display Size: 1.3 inch Resolution: 128 × 64 pixels Controller Chip: SSH1106 Display Area: 34.5 × 19 mm Interface Type: IIC / I2C Pixel Color: White Driving Voltage: 3.3V – 5V Operating Temperature: -40°C to 70°C Physical Dimensions Length: 35.5 mm Width: 33.5 mm Height: 4 mm Weight: 7 g 📦 Package Includes 1 × 1.3 Inch 128×64 OLED Display Module (White)
ESP32 Development Board with WiFi & Bluetooth – CH340C USB Type-C
[ESP Modules] The ESP32 Development Board with WiFi & Bluetooth (CH340C, Type-C) is a powerful and versatile microcontroller board designed for modern wireless and IoT applications. It features a dual-core processor and integrated 2.4GHz WiFi and Bluetooth (Classic + BLE) connectivity. This board includes an onboard CH340C USB-to-Serial converter, which allows easy programming and communication without requiring an external crystal oscillator. The USB Type-C port provides a stable and reversible connection for power and data. With a wide range of GPIO pins and peripherals such as ADC, DAC, PWM, UART, SPI, and I2C, this board is perfect for building home automation systems, smart devices, IoT nodes, robotics controllers, sensor networks, web servers, and wireless projects. It is fully compatible with Arduino IDE, ESP-IDF, and MicroPython, making it suitable for beginners, students, and professional developers. 🔹 Key Features Based on ESP32 dual-core microcontroller Built-in WiFi 802.11 b/g/n and Bluetooth v4.2 (Classic + BLE) Onboard CH340C USB-to-Serial converter (no external crystal required) Modern USB Type-C connector for power and programming Dual-core CPU up to 240 MHz for high-performance applications Multiple GPIO pins with ADC, DAC, PWM support Supports Arduino IDE, ESP-IDF, and MicroPython Low-power modes including deep sleep for battery-powered projects Compact design with breadboard-friendly layout Ideal for IoT, automation, robotics, smart home, and DIY electronics 🔹 Technical Specifications Microcontroller: ESP32 CPU: Dual-core Tensilica LX6, up to 240 MHz Flash Memory: 4 MB (typical, may vary by batch) SRAM: 520 KB Wireless Connectivity: WiFi: 2.4 GHz, 802.11 b/g/n Bluetooth: v4.2, Classic + BLE USB Interface: USB Type-C USB-to-Serial Chip: CH340C Operating Voltage: 3.3 V Input Voltage: 5 V via USB Logic Level: 3.3 V GPIO Pins: 30+ multifunction pins Peripherals: ADC, DAC, PWM, UART, SPI, I2C, I2S Clock Frequency: Up to 240 MHz Programming Support: Arduino IDE, ESP-IDF, MicroPython Onboard Components: Reset & Boot buttons, voltage regulator, status LEDs Form Factor: Standard ESP32 Dev Board size 🔹 Applications Internet of Things (IoT) projects Home and industrial automation Smart home devices Robotics and motor control Wireless sensor networks Web servers and cloud-connected devices Educational and training projects DIY electronics and prototyping 🔹 Package Contents 1 × ESP32 Development Board with WiFi & Bluetooth (CH340C, USB Type-C)
4S 5A Active Balancer Equalizer Board for LiFePO4/Li-ion
[Lithium Battery Protection Board] 4S 5A Active Balancer Equalizer Board for LiFePO4/Li-ion Software active equalization specification Number of battery pack strings – 4S Balance current ≤5A Balance mode – Active equilibrium working temperature -20°C~60°C The 4S5A Active Balancer (NEEY) is a battery management solution designed for 4 series lithium-based battery packs. It supports 5A of current per cell for active balancing, which ensures that all cells in the battery pack remain at a balanced voltage level. Active balancing redistributes energy from cells with higher voltage to those with lower voltage, optimizing the overall performance and efficiency of the battery. This helps prevent individual cells from becoming overcharged or discharged excessively, extending the lifespan and enhancing the safety of the battery pack. The NEEY model delivers reliable performance in energy storage systems, electric vehicles, and other high-demand lithium battery applications. Applicable battery type : NCM/LFP Teemary Lithium/Lithium Iron Single voltage working range: NCM/LFP version 3.0V-4.2V Balance method : Detect the nearby voltage difference is greater than 0.1V totrigger the start of balanced the adjacent battery voltage difference is less than 003V to stop working Balance current: 0.2V Adjacent voltage difference 0.1V, Balance current: 054-0.74, Adjacent voltage difference 0.2V. Balanced current: 2A LED indicator : 1. When the equalization light is on the equalization work is turned on, 2. The equalization light goes out the equalization circuit sleeps Operating Temperature Range: -20° to 60° The smaller the differential voltage, the smaller the balance current. Package Include: 1x 4S 5A Active Balancer Equalizer Board for LiFePO4/Li-ion 1x Cable
R385 Pump 6-12V DC Mini Aquarium Water Pump
[DC Water Pump] Overview of this 6-12V DC Min R385 Mini Aquarium Pump Introducing the R385 Mini Aquarium Water Pump, your ideal solution for efficient water circulation in small tanks. With its compact design and versatile 6-12V DC power compatibility, this pump fits seamlessly into any aquarium setup. Enjoy steady water flow and maintain optimal conditions for your aquatic pets with ease. Designed with reliability in mind, the R385 Mini Water Pump ensures quiet operation while providing sufficient water movement. Its diaphragm base design delivers high performance & ensure your aquarium inhabitants thrive in a healthy environment. Say goodbye to stagnant water and hello to a dynamic aquatic eco system with this dependable mini pump. Whether you’re a seasoned hobbyist or a beginner, the R385 Mini Aquarium Pump offers comfort and peace of mind. Its user friendly design allows for easy installation and operation. And make it the perfect choice for aquarium enthusiasts of all levels. Enhance the beauty of your under water world with the reliable performance of the R385 Mini Water Pump. Features 6-12V DC power compatibility: The R385 Mini Aquarium Water Pump easily adapts to power sources from 6-12 volts. And also provide flexibility in setup options for your aquarium system. Compact design: With its sleek and space saving design, the R385 pump is perfect for mini aquarium setups. And also optimize space with smooth water circulation. Reliable diaphragm based design: Featuring a durable diaphragm based design. This R385 water pump also ensure smooth and trusted water flow & provide a healthy aquatic environment for fish and plants alike. Quiet operation: Engineered for quiet operation, this mini water pump decrease noise. And create a serene atmosphere for your aquatic companions to thrive without disturbance. User-friendly design: Whether you’re a beginner or an experienced hobbyist. This R385 Mini Aquarium Pump is also built for easy installation and operation. And also save you time and allow you to focus to create the perfect under water landscape. Specification Specification Details Model R385 Rated Voltage DC 6V to 12V Working Current 0.5A to 0.7A (Max) Power 4W-7W Max Lift 3m Max Suction 2m Max Water Temperature 80°C Pump Size 90mm x 40mm x 35mm (approx) Fluid 0-100°C Input/Output Tube Diameter Outer: 8.5mm, Inner: 6mm (approx) Max Current (Startup) Up to 2 Amps Life Up to 2500 Hours Maximum Flow Rate 1 – 3L/min Package Includes: 1 x R385 Pump 6-12V DC Mini Aquarium Water Pump
XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module
XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module is a two-channel PWM signal generator. It has dedicated switches for adjusting the frequency and duty cycle separately. Using this module PWM output, frequency and duty cycle can be set as per requirements. Communication Standard: 9600 bps Data bits: 8 Stop bit: 1 Check digit: none Flow control: none Set the frequency of the PWM “F101”: Set the frequency to 101 Hz (001 to 999) “F1.05”: set the frequency of 1.05 kHz (1.00 ~ 9.99) “F10.5”: Set the frequency to 10.5kHz (10.0 ~ 99.9) “F1.0.5”: set the frequency of 105kHz (1.0.0 ~ 1.5.0) Set the PWM duty cycle “DXXX”: set the PWM duty cycle to XXX; (001 ~ 100) Such as D050, set the PWM duty cycle is 50% Read the set parameters Send a “read” string to read the set parameters. Set successfully return: DOWN; Setup failed to return: FALL. Application: This is used to drive a stepper motor driver’s square wave. Generate an adjustable pulse for MCU. Generate an adjustable pulse for controlling relative circuit (PWM adjust lightspeed, etc). Used as a square wave signal generator for experimental development and use. Parameter Settings: The module has 4 switches, two for frequency adjustment and two for duty cycle adjustment. This module can generate frequencies between 1Hz and 150kHz, with automatic switching for different ranges. Frequency is divided into four ranges, automatic switching: 1. XXX (no decimal point): the smallest unit is 1Hz, the value range of 1Hz ~ 999Hz; 2. X.XX (decimal point in the hundred) the smallest unit is 0.01Khz, the range of 1.00Khz ~ 9.99Khz; 3. XX.X (decimal point in ten): the smallest unit is 0.1Khz; value range of 10.0KHz ~ 99.9KHz 4. X.X.X (decimal point in ten and hundred): the smallest unit is 1Khz; value range 1KHz ~ 150KHz 5. e.g. frequency display: 100 indicates PWM output 100Hz pulse; 1.01 indicates PWM output 1.01K pulse; 54.1 indicates that the PWM output has a pulse of 54.1 kHz; 1.2.4 indicates that the PWM output is 124 kHz pulse; Duty cycle range: 1 – 100%. In case of a power outage or if the module is powered down, the parameters that are set are saved automatically, so there is no need to set the parameters again. Single touch for increasing or decreasing single unit and long press for fast increasing or decreasing. Features: LCD display for frequency and duty cycle. Wide frequency range. High precision. Serial communication(TTL based). Package Includes: 1 x XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module.
Type-C USB Input High Current 3A Polymer Ternary Lithium Battery Quick Fast Charging Board IP2312 CC/CV Mode 5V To 4.2V
[Lithium Battery Protection Board] Power your projects with the Type-C USB Input 3A Lithium Battery Fast Charging Board (IP2312) — a compact, high-efficiency charging solution designed for 3.7V lithium-ion and lithium polymer batteries. Built around the advanced IP2312 main control chip, this module delivers fast, stable, and intelligent charging using a full CC/CV (Constant Current / Constant Voltage) charging algorithm. It ensures optimal battery health, safety, and performance while supporting high current charging up to 3A, making it ideal for modern DIY electronics and portable power applications. The Type-C input interface provides universal compatibility with standard 5V USB power sources, while onboard indicator LEDs clearly display charging status. ⚠️ Note: Not suitable for 3.2V LiFePO4 (Lithium Iron Phosphate) batteries Key Features ⚡ High Current Fast Charging (Up to 3A)Supports rapid charging for lithium-ion/polymer batteries, reducing charging time significantly. 🔋 Advanced CC/CV Charging TechnologyEnsures safe and efficient charging with automatic switching between charging stages. 🔌 Type-C USB InputModern and widely compatible input interface (4.5V–5.5V), easy to power from adapters, power banks, or USB ports. 🧠 Smart Charging Management (IP2312 Chip)Automatically adjusts charging mode based on battery voltage for maximum safety and efficiency. 🔴🔵 LED Status Indicators Red LED: Charging in progress Blue LED: Fully charged 🛠️ Compact & Easy IntegrationSmall size makes it perfect for embedded systems, DIY battery packs, and portable devices. Charging Working Principle 🔹 Trickle Charging Mode (< 3V)When battery voltage is below 3V, the module charges with a safe low current (~100mA). 🔹 Constant Current Mode (> 3V)Once voltage exceeds 3V, it switches to constant current charging (up to 3A). 🔹 Constant Voltage Mode (~4.2V)As the battery approaches full charge, it maintains voltage while gradually reducing current. 🔹 Auto Cut-Off & Recharge Charging stops when current drops below 300mA Automatically resumes charging if voltage drops below 4.1V Specifications Specification Description Main Chip IP2312 Charging Mode CC/CV (Constant Current / Voltage) Input Voltage 4.5V – 5.5V (Type-C USB) Charging Current Up to 3A Battery Type 3.7V Li-ion / Li-Po Cut-off Voltage 4.2V / 4.35V Indicator LEDs Red (Charging), Blue (Full) Dimensions 34.5mm × 15mm Applications 🔋 DIY lithium battery packs🔌 Power bank projects🚗 Portable electronics & gadgets🔧 Arduino / ESP32 battery systems🔦 Rechargeable lighting systems📦 Embedded battery charging modules Package Includes 1 × Type-C USB 3A Lithium Battery Fast Charging Board (IP2312)
10K Rotary Potentiometer Round Shaft 3Pin Elcon
[Potentiometer] 10KΩ Rotary Potentiometer Round Shaft Elcon The 10KΩ Rotary Potentiometer Round Shaft Elcon is a reliable 3-pin variable resistor designed for adjusting electrical parameters such as voltage, current, brightness, motor speed, and other control functions in electronic circuits. By rotating the shaft, the resistance can be smoothly adjusted across its available range, making it suitable for a wide variety of DIY and electronic applications. With its compact 16mm body, 6mm round shaft, and through-hole mounting design, this potentiometer is easy to install on electronic PCBs and control panels. The linear resistance characteristics make it particularly suitable for applications such as LED brightness control, fan speed control, motor control, and general-purpose voltage adjustment. ⭐ Key Features 10KΩ resistance value 3-pin rotary potentiometer Linear potentiometer Smooth rotary adjustment 6mm round shaft Compact 16mm body diameter Through-hole mounting Suitable for PCB and electronic circuits Useful for voltage and current adjustment Suitable for LED, fan and motor control applications Elcon brand 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Resistance Value: 10KΩ Configuration: 3 Pin / Single Gang Tolerance: ±20% Shaft Type: Round Shaft Shaft Diameter: 6mm Shaft Length: 13mm Body Diameter / Width: 16mm Total Height: 30mm Mounting Type: Through Hole Operating Temperature: -40°C to +80°C Weight: Approx. 8g 🔧 Applications LED Brightness Control Fan Speed Control Motor Speed Control Voltage Adjustment Current Adjustment Power Supply Circuits Arduino Projects DIY Electronics Projects Audio & Electronic Circuits Electronic Prototyping 🛠️ How It Works A potentiometer is a variable resistor with three terminals. The two outer terminals are connected to the resistive track, while the center terminal acts as the wiper. Rotating the shaft changes the wiper position and therefore changes the resistance or output voltage in the circuit. 📦 Package Includes 1 × 10KΩ Rotary Potentiometer Round Shaft Elcon ⚠️ Note Product images are shown for illustrative purposes only and may differ slightly from the actual product. The 10KΩ value and ±20% tolerance are based on the supplied product specifications.
Out of stock24V 1.5A DC Power Supply Adapter Good Quality with 1 Year Warranty
[Adaptor Power Supply] The 24V 1.5A DC Power Adapter is a premium-quality SMPS-based regulated power supply designed to deliver a stable and reliable 24V DC output at 1.5 amps. Supporting a wide AC input range of 100–240V, this adapter works seamlessly with Indian power sockets without requiring any plug converter. Built with advanced switch-mode power supply (SMPS) technology, this adapter offers high efficiency, low ripple, low interference, and excellent voltage regulation. It ensures smooth and safe operation for sensitive electronic devices. Equipped with short-circuit, over-voltage, and over-current protection, the adapter protects both your equipment and the power supply from electrical damage. Its compact, lightweight, and center-positive design makes it perfect for continuous indoor use. Ideal for powering CCTV cameras, routers, networking equipment, LED lighting systems, access control systems, industrial electronics, and DIY projects, this adapter delivers high reliability and long-term performance, backed by a 1-year warranty. ⭐ KEY FEATURES ✔ Output: 24V DC, 1.5A stable regulated supply✔ Wide Input Range: AC 100–240V, 50/60Hz✔ SMPS Technology – High efficiency & low heat✔ Built-in Short Circuit, Over-Voltage & Over-Current Protection✔ Center Positive Output✔ Indian Plug Design – No converter required✔ Compact, lightweight & portable✔ Low ripple, low noise & high reliability✔ 1-Year Warranty 🔧 TECHNICAL SPECIFICATIONS Input Voltage: AC 100–240V, 50/60Hz Output Voltage: DC 24V Output Current: 1.5A Output Power: 36W (Approx.) Output Type: DC, Single Output Polarity: Center Positive Category: Switch Mode Power Adapter (SMPS) Efficiency: High, low energy consumption Warranty: 1 Year 🎯 APPLICATIONS CCTV cameras & DVR systems Routers & networking equipment LED strips & lighting systems Access control systems Industrial control panels DIY electronics & embedded projects 📦 PACKAGE INCLUDES 1 × 24V 1.5A DC Power Supply Adapter * Product Images are shown for illustrative purposes only and may differ from actual product.
PICKIT3.5 Plus Microchip Programmer W/USB Cable Wires Pic Kit 3.5+
Description: PICKIT3.5 Plus In-Circuit Debugger/Programmer compatible with Microchip uses in-circuit debugging logic incorporated into each chip with Flash memory to provide a low-cost hardware debugger and programmer. The PICKIT3.5 Plus allows debugging and programming of PIC and dsPIC Flash microcontrollers using the powerful graphical user interface of the MPLAB Integrated Development Environment (IDE). PICKIT3.5 Plus is an upgrade from the Pickit 3 programmer with the programming-to-go feature. Specifications: Type: Debugger/Programmer Tool/Board Application: Debugging/Programming MCU Supported Families: Flash-based PIC MCUs Core Architecture: PIC, dsPIC IC Product Type: In-Circuit Debugger Features USB (Full speed 12 Mbits/s interface to host PC) Real-time execution MPLAB IDE compatible (free download from Microchip) Built-in over-voltage/short circuit monitor Firmware upgradeable from PC/web download Diagnostic LEDs (power, busy, error) Read/write program and data memory of the microcontroller Erase of program memory space with verification Freeze-peripherals at breakpoint Program up to 512K byte flash with the Programmer-to-Go ICSP cable included Package Included: 1 x PICKIT3.5 Plus Microchip Programmer W/USB Cable Wires Pic Kit 3.5+
JHD 16×2 Character LCD Display With Blue Backlight
[LED/LCD Display Module] If you want to add some visual output to your Arduino projects, you’ll need a display. If you need only a little to display, the LCD 16×2 Parallel LCD Display is a quite good solution. This is a Original JHD 16×2 Character LCD Display With Blue Backlight as there are many fake JHD Displays in the Market. This is a great blue backlight LCD display. It is fantastic for Arduino based project. This LCD 16×2 Parallel LCD Display with Blue Backlight is very easy to interface with Arduino or Other Microcontrollers. This is LCD 16×2 Parallel LCD Display that provides a simple and cost-effective solution for adding a 16×2 White on RGB Liquid Crystal Display into your project. The display is 16 character by 2 line display that has a very clear and high contrast white text upon a blue background/backlight. The values shown on the display can be either simple text or numerical values read by the sensors, such as temperature or pressure, or even the number of cycles that the Arduino is performing. For more displays click below, LED/LCD Display Features : 16 characters wide, 2 rows White text on the yellow background Single LED backlight included can be dimmed easily with a resistor or PWM. Can be fully controlled with only 6 digital lines! (Any analog/digital pins can be used) Specifications: Model： JHD659 B/W Display： 16×2 character Outline： 80.0×36.0×14.5 VA： 64.5×14.5 Controller： SPLC780D Character： 2.95×4.35 Driver： 1/16 LCD： STN Blue Negative Backlight： White LED Package Includes : 1 x JHD 16×2 Character LCD Display With Blue Backlight
Multitec 150B Wire Stripper and Cutter
[Cutter] This Multitec 150b Wire Stripper and Cutter is a High-grade alloy steel stripper/cutter ideal for professionals. The tool is suitable for the flush cutting action. The tool is mainly used to strip and cut the wire with a 12-24 gauge. The black oxide finish prevents corrosion. Based on the wire size, screws have to be adjusted. Features : An improved handle for extra comfort and grip. Sharp cutting edge. Suitable for industrial applications. H-8mm L-13cm W-80 gm. Fast cutting action with black oxide finish. Strips and cuts wire 12-24 gauge. Wire Gauge screw in slot holds stripping die to the proper size for repeated jobs and prevent nipped wire. Sharp cutting edges for all industrial uses. Package Includes : 1 x Multitec 150b Wire Stripper and Cutter