The Nordic nRF24L01+ (plus) is a highly integrated, ultra low power (ULP) 2Mbps RF transceiver IC for the 2.4GHz ISM (Industrial, Scientific and Medical) band. The Enhanced ShockBurst? hardware protocol accelerator offloads time critical protocol functions from the application microcontroller enabling the implementation of advanced and robust wireless connectivity with any kind of micro controller. The Nordic nRF24L01+ integrates a complete 2.4GHz RF transceiver, RF synthesizer, and baseband logic including the Enhanced ShockBurst® hardware protocol accelerator.
The 2nd chip on this transceiver module, the RFaxis RFX2401C, contains a LNA for the receiver, PA for the transmitter, two switches, the associated matching network, and the harmonic filter. The RFaxis RFX2401C RF Front – End IC (RFeIC?) increases the transmitted power and reduces the receiver noise figure leading to range extension and more robust communication.
The maximum transmission range of the nRF24L01+ with PA and LNA module is about 1100 m (with standard antenna).
The 3.3V regulation on an original Arduino board (Uno, Mega or Nano for example) is unfortunately NOT strong enough to supply enough current for the high power transmission (peak current up to 150mA)! Most of our compatible Arduino MEGA and UNO boards have stronger voltage regulation and can supply enough power for the wireless module.
Dimensions: 41 x 15mm
Antenna: 109 x 9.5mm, +2dB
Operating voltage: 3.0 to 3.6V
Data signal level: 3.3V and 5V logic level
Transmission power: max. +21dBm
Transmit mode current: max. 140mA
Receive mode current: max. 45mA
Power-down mode current: typ. 4.2µA
Note: you will need at least 2 modules to make data communication work.
There are many websites full of application examples and libraries for micro controller programming. The following links can give you some help already.
download datasheet for Nordic nRF24L01+ 2.4GHz transceiver IC
download datasheet RFAXIS X2401C range extender for nRF24L01+
link to interesting Wiki about nRF24L01+
how to use nRF24L01+ with Arduino, incl. library