Keyes Bluetooth 4.0 Module MD-269 Wireless Serial HM-10 Arduino Flux Workshop | eBay. I have exactly it, I did the same thing as the person in the YT video and it doesn't work for me.
Keyes Bluetooth 4.0 Module MD-269 Wireless Serial HM-10 Arduino Flux Workshop | eBay. I have exactly it, I did the same thing as the person in the YT video and it doesn't work for me.