The nRF24l01+ transceiver is a fantastic and cheap way to get your Arduinos talking to each other wirelessly. It’s also very easy to use thanks to some great libraries:
Murchlabs
Arduino, Raspberry Pi, and other electronics projects by Jeff Murchison
July, 2013 Archive
“ArduinoISP Deluxe Shield” is now “TinyLoadr Shield”
When I made the first prototype for my ATtiny and ATmega programming shield, I decided to call it the ArduinoISP Deluxe Shield. “ArduinoISP” came from the fact that it would rely on the ArduinoISP sketch in order to be useful, and the “Deluxe” part was because while there were already other ATmega or ATtiny programming […]