How can I do a loop-back test between Arduino UNO with Bluetooth module and a PC running a terminal program? For example, I type "A" and I should get "A". Which terminal program should I get? I tried to type $$$ and nothing happened.
How can I do a loop-back test between Arduino UNO with Bluetooth module and a PC running a terminal program? For example, I type "A" and I should get "A". Which terminal program should I get? I tried to type $$$ and nothing happened.