Say Goodbye to Zigbee, and Say Hello to Nrf24l01. (Tutorial 1)
Zigbee is a good wireless solution for arduino long time, however, it is expensive. NRf24l01 only $1.5 per piece at Electrodragon, you can find it here. Not only cheap, this module is also high speed (2Mbps), Low power consumption (1uA at standby mode) and quite far communication distance (20-30...
