The NRF24L01+ 2.4GHz wireless RF transceiver is a low-power module allows for high-speed SPI communication between microcontroller units (such as an Arduino).
The range for these are approximately 120ft., depending on the conditions.
They can be used for projects such as:
Supply Voltage (VCC): 3 - 3.6V (3.3V recommended), do NOT connect to 5V power supply!
|8 - IRQ||7 - MISO|
|6 - MOSI||5 - SCK|
|4 - CSN||3 - CE|
|2 - VCC||1 - GND|
Arduino Library: https://github.com/maniacbug/RF24
Arduino NRF24L01 Page: http://playground.arduino.cc/InterfacingWithHardware/Nrf24L01
NOTE: We recommend using a 1uF - 10uF electrolytic capacitor connected to VCC & GND to help smooth the power input and help prevent power issues.