Funny Electronics: Convert Digital Pins of Arduino Board to Transmitter (Tx) and Receiver (Rx)
Using Rx, Tx pin of arduino to send command and read response - Project Guidance - Arduino Forum
The Arduino's TX and RX pins are used for UART communication. From The Components of an Arduino Uno PCB - https://www.circuitbasics.com/... | Instagram
Any way to program arduino nano directly from TX/RX pins? : r/arduino
Level shifting 3.3v to 5v only RX and TX pins - General Electronics - Arduino Forum
Using Rx, Tx pin of arduino to send command and read response - Project Guidance - Arduino Forum