Exchange of information between devices. Communication can be wired or wireless.
The "communication" tag is very general. In many cases, it's better to tag a question with a more specific tag, such as (for example) protocol, remote-control, canopen, can, power-line-communication, digital-communications, rs485, usb, serial, radio, rf, wireless, spi, i2c, bluetooth, uart, driver, infrared, rs232, wifi, telephone, transmitter, receiver, modulation, cellphone, gsm, interference, network-interface, or etc.
