All products · 21 of 1440
Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
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.
2.25-Inch 8ohms 8W Full Range Speaker for Compact Audio Applications
[Speakers] 2.25-Inch 8Ω 8W Full Range Speaker for Compact Audio Applications The 2.25-Inch 8Ω 8W Full Range Speaker is a compact and efficient audio driver designed for small electronic and embedded sound applications. Featuring an 8Ω impedance and 8W power rating, this speaker delivers clear and balanced sound output while maintaining low power consumption and excellent efficiency. Its compact size makes it ideal for projects where installation space is limited, including portable speakers, DIY electronics, toys, alarm systems, intercom devices, and mini speaker enclosures. The full-range design allows it to reproduce a broad range of audio frequencies, making it suitable for both voice and music playback applications. Built with durable materials and designed for reliable long-term performance, this speaker is an excellent choice for electronics hobbyists, engineers, and product developers working on custom audio projects. ⭐ Key Features 2.25-Inch compact speaker driver 8Ω impedance 8W power rating Full-range audio reproduction Clear and balanced sound output Lightweight and compact design Easy to mount in enclosures and panels Suitable for low to medium-power audio applications Durable construction for long-term use Ideal for DIY and embedded audio systems 📋 Technical Specifications Product Type: Full Range Speaker Speaker Size: 2.25 Inch Impedance: 8Ω Power Rating: 8W Speaker Type: Full Range Mounting Type: Enclosure / Panel Mount Application Type: Audio Output 🔧 Applications Portable Speaker Systems DIY Audio Projects Bluetooth Speaker Modules Toys and Educational Kits Alarm and Notification Systems Embedded Electronic Devices Mini Amplifiers and Sound Modules Intercom Systems Robotics Projects Custom Speaker Enclosures ⚠️ Precautions Do not exceed the 8W rated power. Use an amplifier compatible with an 8Ω speaker load. Avoid exposure to moisture and excessive dust. Mount securely to minimize vibration and distortion. Do not apply direct pressure on the speaker cone. 📦 Package Includes 1 × 2.25-Inch 8Ω 8W Full Range Speaker
57mm (2.25-Inch) Internal Magnet Speaker 4Ohms 3W Full Range Audio Speaker
[Speakers] 57mm (2.25-Inch) Internal Magnet Speaker – 4Ω 3W Full Range Audio Speaker The 57mm (2.25-Inch) Internal Magnet Speaker is a compact and reliable full-range audio speaker designed for DIY electronics, multimedia devices, embedded sound systems, and portable audio applications. Featuring a 4Ω impedance and 3W power rating, this speaker delivers clear and balanced sound output while maintaining a slim and lightweight design. Its internal magnet structure provides a compact profile, making it ideal for applications where installation space is limited. The durable mounting frame allows easy integration into speaker enclosures, control panels, intercom systems, audio modules, and custom electronic projects. Designed for consistent audio performance, this speaker is suitable for voice playback, music, alerts, and general audio output in both portable and embedded electronic devices. ⭐ Key Features 57mm (2.25-Inch) compact speaker 4Ω impedance 3W power rating Internal magnet design Full-range audio reproduction Built-in mounting frame Clear and balanced sound output Compact and lightweight construction Easy installation in custom enclosures Suitable for portable and embedded audio applications Ideal for DIY electronics and speaker projects 📋 Technical Specifications Product Type: Internal Magnet Speaker Speaker Size: 57mm (2.25 Inch) Impedance: 4Ω Power Rating: 3W Speaker Type: Full Range Magnet Type: Internal Magnet Frame Type: With Mounting Frame Mounting: Frame / Panel Mount Application: Embedded Audio Systems 🔧 Applications DIY Electronics Projects Audio Modules & Music Players Intercom and Communication Systems Toys and Educational Devices Portable Audio Systems Alarm and Notification Devices Embedded Audio Applications Mini Speaker Enclosures Multimedia Devices Robotics and Automation Projects ⚠️ Precautions Do not exceed the 3W rated power. Use an amplifier compatible with a 4Ω speaker load. Ensure proper wiring polarity during installation. Avoid exposure to moisture and dust. Mount securely to reduce vibration noise. Do not apply direct pressure on the speaker cone. 📦 Package Includes 1 × 57mm (2.25-Inch) 4Ω 3W Internal Magnet Full Range Speaker
Portable USB Bluetooth Audio Music Receiver Dongle Adapter – Wireless Audio Receiver
[Audio Receiver] The Portable USB Bluetooth Audio Music Receiver Dongle Adapter instantly converts any car stereo, home speaker, PC speakers, or audio system into a wireless Bluetooth-enabled music receiver. Simply plug the dongle into a USB power source, connect its audio output to AUX, and enjoy seamless wireless music streaming from your smartphone, tablet, or laptop. This compact Bluetooth receiver delivers crisp, high-quality audio with stable transmission—making it perfect for cars without built-in Bluetooth, wired speakers, home audio systems, and portable sound setups. It supports all Bluetooth-enabled devices and offers quick pairing, low power consumption, and wide compatibility. Whether you're upgrading your car audio or converting old speakers into wireless ones, this USB Bluetooth receiver provides an easy and affordable solution. ✅ Features Convert any speaker or car stereo into a Bluetooth audio receiver Provides high-quality wireless music streaming from mobile, tablet, or laptop USB-powered – plug into car charger, power bank, or USB port Stable Bluetooth connection with fast pairing Compatible with car stereos, home speakers, multimedia systems, and amplifiers Ultra-compact, lightweight, and easy to carry Supports all major Bluetooth audio devices No drivers required – plug & play operation **** 3.5mm jack or cable not included***** 📘 Specifications Device Type: USB Bluetooth Audio Receiver Bluetooth Version: Standard high-quality audio support Input Power: USB 5V Output: 3.5mm AUX audio Transmission Distance: Approx. 8–10 meters Compatibility: Android, iOS, laptops, tablets, car stereos, speakers, amplifiers Usage: Car audio upgrade, home audio wireless streaming, mobile speaker enhancement Design: Compact & portable
TPA3116D2 XH-M543 120W Dual Channel High Power Original Digital Power Amplifier Board
[Amplifier Board] Build your own music system with 120 watts of stereo output. TPA3116D2 XH-M548 Dual Channel 120W Digital Power Amplifier Board is newly designed digital audio amplifier board with fine quality is practical to install and use also has good performance. It features high-efficiency class D audio power amplifier with the latest and original TPA3116D2 core technology the BTL bridge circuit is more efficient than before. This product uses the double power supply transformer with a dynamic power supply range from 12V to 24V with high efficiency small quiescent current. Additionally, it is equipped with Perfect protection functions like overvoltage protection and output current limit. Features: A strong TPA3116D2 chip is a digital power amplifier chip, with low idle loss characteristics, makes it work well and quickly. Onboard, front-facing IC to improve the input sensitivity, high-definition sound quality. It can be used for car vehicle computer speaker, family audio and video, and empty square. This product has the characteristics of loud sound, the capacitance is large, excellent sound quality. There is no solder joint on the back of the circuit board, the chip capacitors, and the solder board together, so there is no possibility of short circuit. Package Includes: 1 x TPA3116D2 XH-M543 120W Dual Channel High Power Digital Power Amplifier Board
Out of stockTPA3116D2 50Wx2+100W Original IC 2.1 Channel Digital Subwoofer Amplifier Board 12V-24V
[Amplifier Board] This is TPA3116D2 IC 50Wx2+100W 2.1 Channel Amplifier Board 12V-24V. DC12-24V TPA3116D2 2.1 Channel Digital Subwoofer Power Amplifier Board adopts two high-quality TPA3116D2 digital amplifier chips. Sound quality is very good, high efficiency and amplifying power. 50W x 2+100W 2.1 channels (left/right channel and subwoofer channel), high efficiency and low-heat. Users can adjust the volume by themselves easily. It is powered by DC 12-24V, wide input voltage. You can check our others amplifier boards here. Features: Adopts two high-quality TPA3116D2 digital amplifier chips. Good sound quality, high efficient device and power amplifying feature. 50W x 2+100W 2.1 channels(left/right channel and subwoofer channel), high efficiency and low-heat. Powered by DC 12-24V, wide input voltage. User can adjust the volume by themselves easily. Applicable speaker impedance: 4-8 ohm. Just connect the power supply and loudspeaker box, enjoy pure digital music!. Specification Supply Voltage DC 12-24V Main Chip TPA3116 x 2 Channel Type 3 Channels(Left Channel, Right Channel, Subwoofer) Output Power 50W x 2 + 100W x 1 Subwoofer Output Match 4-8 ohm Audio Output Terminals Frequency Response Range 14-100KHz SNR 100dB Switching Frequency 1.2MHz PCB Board Size (LxWxH) mm 100 x 70 x 30 Weight 113g Shipping Weight 0.13 kg Shipping Dimensions 14 × 10 × 3 cm Package includes: 1 x TPA3116D2 50Wx2+100W Original IC 2.1 Channel Digital Subwoofer Amplifier Board 12V-24V
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.
Bluetooth MP3 Decoding Board Module with inbuilt SD Card Slot / USB / FM / and Remote Control
[Audio, Audio Receiver] Bluetooth MP3 Decoder Board Module with USB, SD Card, FM Radio, AUX & Remote Control The Bluetooth MP3 Decoder Board Module is a compact and versatile multimedia audio player designed to add multiple audio playback options to DIY speakers, amplifier systems, home theaters, car audio systems, portable speakers, and custom audio projects. It combines Bluetooth, USB, SD/TF card, AUX input, and FM radio functions in a single convenient module. The module can be connected to a compatible audio amplifier board to create a complete multimedia audio system. It features a clear LCD display for displaying playback information, input mode, track details, and FM frequency. An included IR remote control allows convenient wireless operation from a distance. With support for popular audio formats including MP3, WMA, WAV, FLAC, and APE, the module provides flexible playback options for different music sources. ⭐ Key Features Bluetooth wireless audio receiver Built-in USB port for music playback Built-in SD/TF card slot FM radio function AUX audio input Supports USB / SD / Bluetooth / FM / AUX source selection Stereo digital audio output LCD display for playback information Includes IR remote control Supports folder selection and organized playback Supports Bluetooth stereo audio Hands-free calling support as specified Compact design for easy installation Suitable for DIY audio projects 📋 Technical Specifications Product Type: Bluetooth MP3 Decoder Board Bluetooth: Bluetooth Audio Receiver Audio Output: Stereo Digital Audio Output Input Sources: Bluetooth / USB / SD (TF) Card / AUX / FM USB Support: Yes SD/TF Card Slot: Yes FM Radio: Yes AUX Input: Yes Display: Seven segment Display Remote Control: IR Remote Included Audio Formats: MP3 / WMA / WAV / FLAC / APE Bluetooth Function: Wireless Audio Playback / Hands-Free Calling Playback Function: Folder Selection & Music Playback Installation: Audio Amplifier / DIY Speaker System Application: DIY Speakers, Home Theater, Car Audio, Portable Audio Systems Mounting Type: Panel / Enclosure Mount Power Supply: Refer to the specific module version before connection Output Connection: Connect to a compatible amplifier input Module Type: Multi-Function Audio Decoder Board 🔧 Applications DIY Bluetooth Speakers Portable Speaker Systems Home Theater Upgrades Car Audio Modification Amplifier Projects Multimedia Speaker Repair Custom Audio Systems DIY Music Players Portable Audio Systems Electronic Audio Projects 🛠️ How It Works The module works as a multi-function audio source and decoder. Select Bluetooth, USB, SD/TF card, AUX, or FM radio as the required audio source. The module decodes the selected audio signal and provides a stereo audio output that can be connected to a compatible amplifier board. For a DIY speaker project, connect the decoder module to a suitable amplifier and then connect the amplifier to the speakers. The included IR remote can be used to control playback, mode selection, track selection, volume, and other supported functions. 🔌 Installation Connect the module to a compatible power supply according to the specifications of the particular module version. Connect the audio output to the input of a suitable amplifier board and connect the amplifier output to the speakers. Insert a compatible USB drive or SD/TF card containing supported audio files, or pair the module with a Bluetooth device. AUX input and FM radio can also be selected using the module controls or remote control. 📦 Package Includes 1 × Bluetooth MP3 Decoder Board Module with USB / SD / FM / AUX 1 × IR Remote Control 1 × Power & Signal Connecting Cable ⚠️ Precautions This module is not recommended for beginners without basic electronics knowledge. Check the module's required supply voltage and polarity before powering it. Ensure all wiring is correct before switching on the power. Connect the audio output to a compatible amplifier input. Do not connect speakers directly to the decoder output unless confirmed by the specific module version. Avoid short circuits between power and signal connections. Do not expose the board to water or excessive moisture. We are not responsible for damage caused by incorrect wiring, improper installation, or misuse.
Out of stock2 inch 15 Watt 3-4 Ohm Speaker 53mm Diameter good Quality
[Speakers] Description This is a general-purpose 3-4 Ohm 15 Watt Speaker that can be used for a variety of audio projects. It has a balanced frequency response and is extremely efficient. Excellent high-frequency response. It is a type of transducer that converts electromagnetic energy into sound waves. It converts analog signal inputs from computers or audio players into sound waves. Because of its small size, it can be used in a variety of applications where space is limited. It can be used in Doorbells, Bluetooth speakers, music systems, Alarms and various other projects. Specifications Impedance 3-4 ohms Power 15 Watt Speaker Dimension 53mm*53mm Thickness 29.4mm Magnet Diameter 44.0mm Shape Top Round, Square Frame Material Metal, Magnet & Plastic Color Black & Silver Magnet Type External Quantity 1 Pieces Country of Origin China
XH-M139 50Wx2+100W 2.1 Channel Digital Subwoofer Amplifier Board 12V-24V
[Amplifier Board] DC12-24V 2.1 Channel Digital Subwoofer Power Amplifier Board adopts two high-quality digital amplifier chips. Sound quality is very good, high efficiency and amplifying power. 50W x 2+100W 2.1 channels (left/right channel and subwoofer channel), high efficiency and low-heat. Users can adjust the volume by themselves easily. It is powered by DC 12-24V, wide input voltage. Features: Adopts two high-quality digital amplifier chips. Good sound quality, high efficient device and power amplifying feature. 50W x 2+100W 2.1 channels(left/right channel and subwoofer channel), high efficiency and low-heat. Powered by DC 12-24V, wide input voltage. User can adjust the volume by themselves easily. Applicable speaker impedance: 4-8 ohm. Just connect the power supply and loudspeaker box, enjoy pure digital music!. Specification Supply Voltage DC 12-24V Main Chip CS3835E0x 2 Channel Type 3 Channels(Left Channel, Right Channel, Subwoofer) Output Power 50W x 2 + 100W x 1 Subwoofer Output Match 4-8 ohm Audio Output Terminals Frequency Response Range 14-100KHz SNR 100dB Switching Frequency 1.2MHz PCB Board Size (LxWxH) mm 100 x 70 x 30 Weight 113g Shipping Weight 0.13 kg Shipping Dimensions 14 × 10 × 3 cm Package includes: 1 x DC12-24V 2.1 Channel Digital Subwoofer Power Amplifier Board
2 inch Speaker 52 mm Diameter 4 Ohm 3W Speaker for DIY Bluetooth Speaker, Electronic Projects etc
[Speakers] A 2-inch (52 mm diameter) 4 Ohm 3W speaker is a small, compact audio component with specific technical characteristics. Here’s a description of this speaker: Size and Diameter: This speaker has a 2-inch size, which corresponds to a 52 mm diameter. It is relatively small and suitable for applications where space is limited or for compact audio devices. Impedance: The speaker has an impedance of 4 Ohms. Impedance represents the electrical resistance that the speaker presents to an amplifier. A 4 Ohm impedance is common and compatible with many audio amplifiers and systems. Power Rating: The speaker is rated to handle a maximum power input of 3 watts (3W). This power rating indicates the amount of electrical power the speaker can accept without damage. It’s suitable for low to moderately powered audio systems. Application: This type of speaker is used in various audio applications, including small bookshelf speakers, computer speakers, portable radios, and other compact audio devices. It’s not typically used for high-powered or professional audio setups but works well in consumer electronics. Use Cases: With its compact size and moderate power handling, this speaker is ideal for providing audio in situations where space is limited, and higher volumes aren’t required. It can be used for casual listening, background music, or as part of a portable speaker system.
TPA3116D2 XH-M543 120W Dual Channel High Power Digital Power Amplifier Board
[Amplifier Board] Build your own music system with 30- 120 watts of stereo output. TPA3116D2 XH-M548 Dual Channel 30-120W Digital Power Amplifier Board is newly designed digital audio amplifier board with fine quality is practical to install and use also has good performance. It features high-efficiency class D audio power amplifier with the latest and original TPA3116D2 /TPA 3110 core technology the BTL bridge circuit is more efficient than before. This product uses the double power supply transformer with a dynamic power supply range from 12V to 22V with high efficiency small quiescent current. Additionally, it is equipped with Perfect protection functions like overvoltage protection and output current limit. Features: A strong TPA3116D2 / TPA 3110 chip is a digital power amplifier chip, with low idle loss characteristics, makes it work well and quickly. Onboard, front-facing IC to improve the input sensitivity, high-definition sound quality. It can be used for car vehicle computer speaker, family audio and video, and empty square. This product has the characteristics of loud sound, the capacitance is large, excellent sound quality. There is no solder joint on the back of the circuit board, the chip capacitors, and the solder board together, so there is no possibility of short circuit. Package Includes: 1 x TPA3116D2 XH-M543 30-120W Dual Channel High Power Digital Power Amplifier Board
Out of stockDC 5V WS2812B 30LED/mtr Addressable LED Strip Roll (Non Waterproof) – 1 Meter
[RGB LED Strip] RGB WS2812B Non-Waterproof 30 Pixel/1mtr Addressable Pixel Strip for Arduino – 1 Meter Strip RGB LED strip which consists of 150 SMD5050 WS2812B LEDs (with controls, IP20). SMART strips are used for creating decorative lighting, as well as in video screens and information boards. These strips can be controlled with any SMART strip controllers: autonomous (offline), slave (online), music and lights and programmable (remote control). Programs are either saved onto an SD card (offline) or are transmitted via Ethernet protocol (online). Led Edit or LedBuild applications are used for creating SMART strip programs. Features- Built-in controls Low power consumption High efficiency Smooth and even light spread IP20 rated Technical specifications Operating voltage 5 V DC Power consumption 0.3 W/LED LED quantity 150 (30 LEDs/1 m) LED type SMD5050 WS2812B (IP20) Emitting colors RGB color variations Beam angle 120° Lifespan up to 50,000 hours Length 1 m * Product Images are shown for illustrative purposes only and may differ from the actual product.
ESP WROOM32 MCU Development Module – 38 Pin
[ESP Modules] This is ESP WROOM 32 MCU Development Module. ESP WROOM 32 is a powerful, generic WiFi-BT-BLE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming, and MP3 decoding. The WROOM32 based modules with integrated flash. These modules are well suited for Wi-Fi and Bluetooth/Bluetooth LE-based connectivity applications and provide a solid dual-core performance and the clock frequency is adjustable from 80 MHz to 240 MHz. The user may also use power saving mode for the CPU and make use of the low-power coprocessor to constantly monitor the peripherals for changes or crossing of thresholds. ESP32S integrates a rich set of peripherals, ranging from capacitive touch sensors, Hall sensors, low-noise sense amplifiers, SD card interface, Ethernet, high-speed SDIO/SPI, UART, and I²C. Using Bluetooth, users can connect to their phone or broadcast low energy beacons for its detection. The use of Wi-Fi enables a large physical range, as well as a direct connection to the internet via a Wi-Fi router. Perfect for wearable electronic or battery-powered applications, the ESP32 chip uses less than 5µA. In addition, this module can support data rates of up to 150 Mbps and 22 dBm output power at the PA in order to allow for the widest physical range. ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller. The ESP32 is integrated with Antenna switches, RF Balun, power amplifiers, low-noise amplifiers, filters, and management modules, and the entire solution occupies the least area of PCB. 2.4 GHz Wi-Fi plus Bluetooth dual-mode chip, with TSMC Ultra-low power consumption 40nm technology, power dissipation performance, and RF performance is the best, safe and reliable, easy to extend to a variety of applications. Features: High performance-price ratio Small volume, easily embedded to other products Strong function with support LWIP protocol, Freertos Supporting three modes: AP, STA, and AP+STA Supporting Lua program, easily to develope Package Includes: 1 x ESP32 38Pin Development Board
2.1×5.5mm DC Power Jack Socket Panel Mount (Female) 3Pin
[Power Connector] The 2.1 x 5.5mm DC Power Jack Socket Panel Mount Female Connector is a reliable and durable DC power socket designed for panel mounting in electronic equipment and enclosures. It accepts standard 2.1mm or 2.5mm center pin × 5.5mm outer diameter DC barrel plugs, making it compatible with a wide range of DC power adapters and supplies. Constructed with a high-quality insulating body and nickel-plated metal contacts, the socket provides excellent electrical conductivity, low contact resistance, and long service life. The supplied metal mounting nut ensures secure installation on control panels, project boxes, and equipment enclosures. The connector is suitable for DC power applications from 12V to 30V and is widely used in CCTV cameras, LED lighting systems, routers, battery chargers, DIY electronics, automation equipment, telecommunications, musical instruments, and embedded electronic projects. Its compact design, strong mechanical construction, and reliable electrical performance make it an excellent choice for professional and hobby electronics applications. 🔹 Key Features Standard 2.1 × 5.5mm DC barrel jack Female panel-mount connector Compatible with 2.1mm and 2.5mm center pin plugs Durable metal mounting nut included Nickel-plated contacts for low resistance Secure and reliable electrical connection Compact and lightweight design Easy panel installation Long service life Suitable for low-voltage DC applications 🔹 Technical Specifications Product Type: DC Power Jack Socket Connector Type: Female Connector Size: 2.1 × 5.5mm Compatible Plug Size: 2.1mm / 2.5mm × 5.5mm Mounting Type: Panel Mount Locking Method: Metal Threaded Nut Terminal Type: Solder Terminals Contact Material: Nickel-Plated Copper Alloy Housing Material: High-Quality Plastic Rated Voltage: Up to 30V DC Rated Current: Up to 5A Contact Resistance: Low Color: Black 🔹 Applications Suitable for: CCTV camera power input LED strip lighting DC power adapters Arduino projects Raspberry Pi projects Battery chargers DIY electronics Audio equipment Industrial control panels Communication equipment Test and measurement devices 🔹 Package Includes 1 × 2.1 × 5.5mm DC Power Jack Socket Panel Mount (Female) 1 × Metal Mounting Nut
Out of stockTDA7492P 50W Wireless Digital Audio Receiver Amplifier Board
[Amplifier Board, Audio Receiver] TDA 7492 P 1 x Amplifier Board 25Wx2 AUX Wireless High Quality This is TDA7492 p based is Class-D audio amplifier. This module has integrated a Bluetooth module, all the used components in the amplifying process, output connectors and control buttons. All you need to do is supply 12V to 36A to it, connect an 8-ohm 50W speaker to each output and connect a Bluetooth device to it and enjoy and control your favourite music wirelessly. In the layout above you can see that the board has 5 control buttons. You can also use those to change the track or control the volume. There is a DIP 2 switches button. Combining the up/down position of each switch you can obtain 4 different filters for the output. In the layout above you can see each combination and the applied gain in each case. This Amplifier has Audio stereo input and connectivity to all versions of the Bluetooth connection, using CSR8635 Bluetooth chip with Bluetooth V4.0. Output Impedance of module is 8 ohms per channel. TDA7492 digital amplifier chip, designed to optimize the circuit layout, the sound quality is very good, big power DIP switches can be adjusted directly after the amp gain more respect and better promote greater damping horn. Features: 25 W + 25 W continuous output power at THD = 10% with VCC= 20 V and RL= 8 Ω Wide-range single-supply operation (8 – 26 V) High efficiency (η = 90%) Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB and 33.6 dB Differential inputs minimize common-mode noise Standby and mute features Short-circuit protection Thermal overload protection Externally synchronizable
Out of stock4 Way/Pole Speaker Terminals Long Socket/Block/Connector With Push Release
[Terminal Connector] Description Generally designed for speakers, amplifiers, and music players, these terminals have multiple uses in applications requiring quick equipment interconnection as they come with push release and an Insert mechanism to easily interconnect two devices with the wires. The spring-loaded mechanism is very easy to use, when you want to connect the device, accomplish it just by pushing the lever down and insert the wire and when you want to release the existing wire then just bring that lever down again and now you can take out your wire and disconnect your device. This Terminal block or connector comes with easy to mount two through holes which allow the user to easily screw-mount it to any application area. It's mostly used where the devices are not in a fixed place or always in changing its place like in DJ shows or music events where the location of events keep on changing and thus the equipment/devices used also have to be mobile and need to be connected with such connectors which are easy to plug in and plug out whenever needed. Feature Used where easy accessibility and fast connection are a priority. Generally designed for speakers, amplifiers and music players, and other quick-connect devices. Easy to Mount with two mounting holes Specification Size: 64x18mm Weight: 10gm per piece. Mounting Hole Pitch: 3mm Package 1x 5 (4 Way/Pole Speaker Terminals Block/Connector With Push Release/Insert Spring Loaded Mechanism.) OR 1 x 10 (4 Way/Pole Speaker Terminals Block/Connector With Push Release/Insert Spring Loaded Mechanism.)
Out of stock5M DC 5V WS2812B 30LED/mtr Addressable LED Strip Roll (Non Waterproof) – 5 Meter
[RGB LED Strip] RGB WS2812B Non-Waterproof 30 Pixel/1mtr Addressable Pixel Strip for Arduino – 5 Meter Strip RGB LED strip which consists of 150 SMD5050 WS2812B LEDs (with controls, IP20). SMART strips are used for creating decorative lighting, as well as in video screens and information boards. These strips can be controlled with any SMART strip controllers: autonomous (offline), slave (online), music and lights and programmable (remote control). Programs are either saved onto an SD card (offline) or are transmitted via Ethernet protocol (online). LedEdit or LedBuild applications are used for creating SMART strip programs. Features- Built-in controls Low power consumption High efficiency Smooth and even light spread IP20 rated Technical specifications Operating voltage 5 V DC Power consumption 0.3 W/LED LED quantity 150 (30 LEDs/1 m) LED type SMD5050 WS2812B (IP20) Emitting colors RGB color variations Beam angle 120° Lifespan up to 50,000 hours Length 5 m * Product Images are shown for illustrative purposes only and may differ from the actual product.
5v Bluetooth Audio Receiver Module
[Audio Receiver] Description This is a Bluetooth audio receiver module, which means it can receive the audio signal of MP3 and other popular formats. It's very easy to connect and operate, and once connected to the other Bluetooth device like your phone or laptop, etc. it can receive the signal and convert it into the output form which is compatible with the speakers. It has 3 output terminals L Out, R Out, and GND to which you can directly connect your wired earphone using a 3.5mm female jack or if you want to drive a big speaker you can connect its output to the input of a good amplifier system. Feature & Specification : Bluetooth 3.0 with audio signal decoding feature. The output is directly compatible with the amplifier. Very little weight and small size form factor make it easily fits into any application area. Can be used to Design your own wireless music system Low power consumption. 5v voltage supply. Specification: Weight: 0.003Kg LxBxH: 22mx13mmx3mm Package includes: 1x 5v Bluetooth Audio Receiver Module
TPA3110 30W (15W+15W) Digital Stereo Audio Power Amplifier Board Module CA-3110
[Amplifier Board] The TPA3110/HDX8816A is a 2×15 Watt Class D Power Amplifier Board. It is designed to drive Professional Stereo Audio Speakers. This Amplifier Board is mostly used with 8-ohm speakers but it can successfully drive the speaker as low as 4 ohm. It's a very high efficient board which eliminates the need of using a heat sink. This device is fully protected against the shorts to GND, VCC & Output to Output. The Application of this device is endless in the segment of consumer electronics. Its most common and widely used application is in Televisions and mid-range compact audio equipment. Features : Wide range in Input voltage Source i.e. from 8v to 24v. It can be used for applications like cars, vehicles, computer speakers, family audio and video systems, and in your own DIY Music System. This amplifier board comes with 4 mounting holes, which is very helpful in tightening the complete circuit board according to your project requirement. 3110 power amplifier chip does not require a heat dissipation sink. It has over-current and over-heat protection. Specification : Operating voltage range: 8V to 24V Amplifier chip: TPA3110 / HDX8816A Output power: 2 x 15W Dimension: 25mm x 33mm x 3mm Package includes: 1x TPA3110 30W (15W+15W) Digital Stereo Audio Power Amplifier Board Module
Out of stockTPA3110 30W HW-404 2.0 Channel Digital Stereo Audio Power Amplifier Board
[Amplifier Board] Build your own music system with dual 30W of stereo output. TPA3110 XH-A232 Dual Channel Digital Power Amplifier Board is a newly designed digital audio amplifier board with fine quality is practical to install and use also has good performance. It features a high-efficiency class D audio power amplifier with the latest and original TPA3110 core technology the BTL bridge circuit is more efficient than before. This product uses the double power supply transformer with a dynamic power supply range from 12V to 24V with high efficiency small quiescent current. Additionally, it is equipped with Perfect protection functions like overvoltage protection and output current limit. Features: Strong TPA3110 chip is a digital power amplifier chip, with low idle loss characteristics, which makes it work well and quickly. Onboard, front-facing IC to improve the input sensitivity, high-definition sound quality. It can be used for car vehicle computer speaker, family audio and video, and empty square. This product has the characteristics of loud sound, the capacitance is large, excellent sound quality. There is no solder joint on the back of the circuit board, the chip capacitors, and the solder board together, so there is no possibility of a short circuit. Package Includes: 1 x XH-A232 TPA3110 30W 2.0 Channel Digital Stereo Audio Power Amplifier Board