• 0 out of 5

    100W Stereo Amplifier Board With Microphone Input

    • Output power:50W+50W
    • Output Impedance:4-8 Ohms
    • Frequency range:20Hz-30kHz
    • Microphone input
    • SNR:100dB
    • Number of channels: 2 (left channel,right channel)
    • Power Supply: AC +/-24V (>120w) ring transformer (Please use a high power transformer or DC power supply for best output.

    Package Size:36cm x 33cm x 16cm (14.17in x 12.99in x 6.30in)

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    Arduino AT-TINY85 Digispark Board


    The AT-Tiny85 Board is perfect for developing projects where an Arduino would be “too much”. It allows you to perform basic I/O and computing functions and is fully compatible with the Arduino IDE.



    • Fully supported on Arduino IDE
    • Can be powered via USB or External Source – 5V or 7-35V (12V or less recommended)
    • On-board 500ma 5V Regulator
    • I2C and SPI (via USI)
    • PWM on 3 pins (more possible with Software PWM)
    • ADC on 4 pins
    • Power LED and Test/Status LED


    Product Information
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    ARM STM32F103C8T6 Development Board


    This board is low cost ARM Microcontroller development board – STM32F103C8T6. The board is suitable for learners and professionals alike who want the 32-bit power of ARM Coretex-M3 32-bit core.

    Code for it can be written using MirkroC ARM, Keil MDK,  Eclipse GCC, and many more.

    Easily load code into the chip via UART (check out our USB-UART converter) //www.konga.com/usb-to-uart-5-pin-cp2102-module-serial-converter-1988801

    You DON’T need a programmer, flash using //cdn2.starkled.com/content/uploads/2012/11/Flash_Loader_Demonstrator_v2.5.0_Setup.exe


    • On-board Mini USB interface, you can give the board power supply and USB communication.
    • On-board test indicator LED
    • On-board reset button and power indicator LED
    • On-board 100ma 3.3V Regulator
    • All GPIO are led out and the names of the pins are marked
    • After soldering the headers, you can directly plug the board onto the breadboard

    Technical Specifications

    • CPU Part Number: STM32F103C8T6
    • Core: ARM 32 Cortex-M3 CPU.
    • Debug mode: SWD (can be programmed with ST-LINK V2)
    • CPU Internal Maximum Clock : 72MHz
    • External Clock Source: 8MHz crystal
    • 64K flash memory, 20K SRAM
    • 2.0-3.6V power, I/O

    Programming Instructions

    • Set Boot Jumper-0 to 1
    • Set Boot Jumper-1 to 0
    • Connect USB-TTL Converter’s TX to PA10 on STM Board
    • Connect USB-TTL Converter’s RX to PA9 on STM Board
    • Give 3.3V power to STM board using USB TTL converter
    • Press and release reset button once
    • Launch STM Flash Loader, Select Port Name (where your usb ttl converter is connected)
    • Select Parity as Even, Baudate as 115200, Echo Disabled and Timeout 10s
    • Press Next, and follow on screen instructions to program, erase or read STM microcontroller


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    Channel Digital Amplifier Board with Subwoofer Output


    This stereo amplifier is allows you to easily deliver a powerful sound up to 200W! And all you need to do is connect a transformer.



    • Output power:80W+80W
    • Output Impedance:4-8 Ohms
    • Frequency range:20Hz-30kHz
    • Microphone input
    • SNR:100dB
    • Number of channels:3 (left channel,right channel,subwoofer)


    • Product size: about 13.2*14.2*6.1cm/5.2* 5.6*2.4inch
    • Power Supply: AC +/-24V (>120w) ring transformer (Please use a high power transformer or DC power supply for best output.


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    Class D High Power Digital Amplifier Board – TDA7492 -2 x 50W


    A powerful amplifier with 50W output on 2 channels, this board allows a very powerful output to be delivered from a single rail power supply.

    • Power supply: Single Supply 10-26V DC voltage
    • The Maximum power: 50W per channel (8 Ohm)
    • Mono power 100W (4 Ohms)
    • Size: 57 mm * 70mm * 21 mm


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    Dual USB Power Bank Board with LCD Display


    Dual USB battery charger with a built in LCD module for visual feedback


      • Micro USB input: 5V 1A
      • USB Output: 5V 2.1A / 5V 1A(Dual USB interface)
      • Charging display: LCD
      • Batteries Type: Lithium-ion batteries (18650)
      • Product Size: 57mm x 28mm
    • Screen size:27mm x 17mm
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    ESP8266-01 Relay Board


    This board is built specifically for the ESP8266 WiFi module. It allows you to control all kinds of devices over the Internet from the wildly popular ESP8266-01 Module. Simply power up and program the board.

    • Board size: 45 * 28 mm
    • Board function description:
    • IN +, IN-: 5V power input;
    • TX, RX, GND: Serial debug pin
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    Micro SD Storage Board – Arduino Compatible


    This Micro SD card Adapter easibly adds Gigabytes of storage to your microcontroller project. Read and write from SD & SDHC cards via a microcontroller or Arduino board.

    • Support Micro SD SDHC Card
    • Power supply:4.5V – 5.5V, 3.3V voltage regulator circuit board
    • Positioning holes: 4 M2 screws for mounting
    • Control Interface: GND, VCC, MISO, MOSI, SCK, CS


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    MP3 Decoder Board With Remote Control


    A highly integrated single-chip multimedia sound systems allows you to play MP3 files from a flash disk or SD card. It is also an FM player and can accept auxilliary input from a 3.5mm jack.




    • Single decoding, Support the MP3 format music.
    • Digital tube display
    • Support the TF card.have the USB interface.
    • Support FM radio, cable band (87.5MHZ-108.0MHZ);
    • Support 5-10 meter distance infrared remote control operation
    • Support for external audio input .LINE IN(AUX)
    • key-press: VOL-/ AUTO / VOL+ / MODE;
    • MODE key: in turn switches between USB/SD/FM/AUX.


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    Printed Circuit Board Etch Resistant Marker Pen


    This two sided etch resist pen for fast fabrication of printed circuit boards. The ink adheres perfectly to copper and is completely resistant to ferric chloride and other usual etchant solutions. Draw the planned circuit onto a thoroughly cleaned copper laminated board and allow to dry. Then immerse the board in etching fluid until the copper is dissolved. The ink can then be removed with Degreasing Solvent or PCB Cleaner, and the circuit board is then ready to be drilled and assembled. This pen is capable of producing thin, delicate lines allowing for quite a condensed track layout if required.

    It can also be used to correct broken tracks while making PCB using toner resist method

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    Single Sided A4 Copper Clad PCB Board


    These low cost Single-sided copper-clad printed circuit board made from  paper-based material. They are very useful when making simple single sided prototype boards.


    • Great for prototypes and short run PCB
    • low-cost printed circuit board.
    • Easy to drill and cut.
    • Suitable etchant ferric chloride solution.
    • 210 × 297mm
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    STM8S103F3P6 Mini Dev Board


    This STM8S103 Minimum development board is suitable for STM8 enthusiast. It packs a lot of power in a very small package.

    • 16 MHz advanced STM8 core with Harvard architecture and 3-stage pipeline
    • RAM: 1 Kbyte
    • 2.95 to 5.5 V operating voltage
    • Internal, user-trimmable 16 MHz RC
    • Internal low-power 128 kHz RC
    • On-board 5V Regulator.
    • Can be powered by 5V USB port
    • Support SWIM programming.
    • 2 Built-In LEDs Power and GPIO on pin PD3 (This should flash when you power it up)
    • On board reset button
    • 8K Flash Memory
    • 640 bytes EEPROM
    • Reflash up to 10K times
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