Hi.
I'm building a remote firing system for my catapult and I'm using 2 Xbee 802.15.4 Protocal Series 1 from adafruit. XBee Module - Series 1 - 1mW with Wire Antenna [XB24-AWI-001] : ID 128 : $22.95 : Adafruit Industries, Unique & fun DIY electronics and kits I want to send a command from one arduino to the other arduino. How do I send a command.
How do I send a command.
The same way you would if there was a pair of wires between the RX and TX pins, using Serial functions.