The connection problem of CRSF #242
Description
I followed the tutorial of the headtracker to flash the firmware and connected the elrs transmitter to the board. However, it couldn't synchronize with the receiver. I couldn't figure out the problem. Maybe there are some details that were not covered in the tutorial. When I directly connected the board to the serial debugging assistant, I could get output information. But when I connected the transmitter using wireless communication, it didn't work.