I am working on a project that uses infrared LEDs to send signals at certain intervals. The arduino I was planning to use would've been sending data @ 9600 mbps, and sent a signal, such as "hi" every ten seconds. Then, the arduino on the other side would send back "hello".The only problem is do I have to use the RX and TX pins or can I use any pin on the Board?
Infrared Signals w/ Arduino
arduinoinfrared
Best Answer
Using RX and TX makes it possible to utilise the UART functionality. If you're going to use an ordinary IO pin you will need to fix the bit-to-byte conversation yourself in software.