I received my NRF24L01 Module today but I'm having a hard time finding any resources about this particular combination of modules!


I tried searching up the v200 1812A but no results...You would think the seller would have some documentation on his page but nothing.

Does anyone know what I'm dealing with here?

Thank you!

  • What numbers are on the chips?
    – Majenko
    Aug 28 '20 at 11:08
  • @Majenko Both the modules display the same V200 1812A, the only slight variation is that one says WSCOM and the other WSUSB
    – CCG
    Aug 28 '20 at 11:10
  • I asked what is on the CHIPS not on the MODULE.
    – Majenko
    Aug 28 '20 at 11:12
  • Excuse me, the WSCOM module has a chip with the markings (ST MICROELECTRONICS) 78754 32F03DF4O6 PHL B17 A
    – CCG
    Aug 28 '20 at 11:17
  • That sounds like an STM32F0 ARM M0 chip?
    – Majenko
    Aug 28 '20 at 11:22

They are transparent bridge modules that are designed specifically to work together. It's intended to be kind of like a wireless UART.

This AliExpress Seller details how to use them.

You need one UART and one USB module. You plug the UART module into the USB module and plug the USB module into your computer. After about 10 seconds the modules are paired together.

You then separate them, and you can connect the UART module to your Arduino or other board.

Now you have a wireless UART between your computer and your Arduino.

Alternatively, since they have an STM32F0 chip controlling them you could hack them to do other things using stm32duino.

  • Ah thanks! Is an Arduino library available to work with it? That's all whats left what's keeping me to work on it!
    – CCG
    Aug 28 '20 at 13:16
  • 1
    To use it as is there's nothing to "use". You just plug it in (once it's paired) like you would an FT232 cable.
    – Majenko
    Aug 28 '20 at 13:17
  • So wait, I can't connect this to my arduino? I thought that I would've been able to communicate between my pc and my arduino... Even that seller page never mentioned the usage of an Arduino
    – CCG
    Aug 28 '20 at 13:24
  • 1
    Once paired you connect the UART portion to the Arduno. Like you'd connect the TTL UART side of an FT232 cable to the Arduino.
    – Majenko
    Aug 28 '20 at 13:25
  • 1
    If you're not using them for the USB interface then yes, you can. Or to any other pins and use SoftwareSerial. It's. Just. Serial.
    – Majenko
    Aug 28 '20 at 13:32

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