Arduino GPIO上的串行数据输出

Question

How do I have serial data come out of an arduino's GPIO pin? I don't mean for the serial monitor but an 8 bit number? Then, how do I get another arduino to read that number correctly through one of it's GPIO pins? Basically, I'm trying to make a serial network between two arduinos without using the UART pins.

Answer 1

SoftwareSerial实现软件UART。