Hello everyone,
I bought a BT-401 module
official pdf:
https://www.hyxkiot.com/tools/download.ashx?site=en&id=23
I connected TX, RX, 3.3V and GND.
Unfortunately, I'm too weak in electronics and now I don't know how to start the AT COMMAND mode and how to enter the SLAVE MODE
Has anyone had contact with this module and knows how to run it?
I want to use it to connect the arduino to the gamepad ![]()
Thanks in advance to all for help
