Universal Asynchronous Receiver-Transmitter
UART is a Serial Communication interface. I think this is probably a good thread to understand the differences:
This is used very synonymously with RS-232, but they are not the same: https://electronics.stackexchange.com/questions/110478/difference-between-uart-and-rs-232/110479#110479
A universal asynchronous receiver-transmitter is a computer hardware device for asynchronous serial communication in which the data format and transmission speeds are configurable.
one tx or rx wire one ground reference
we need a common configuration
- Transmission speed
- Data length
- Start / stop bits 9600 bauds/second
oooh → Arduino
What about USB?