Arduino NRF24L01 User Manual

The module can use 125 different channels which gives a possibility to have a network of
125 independently working modems in one place. Each channel can have up to 6
addresses, or each unit can communicate with up to 6 other units at the same time.
The power consumption of this module is just around 12mA during transmission, which is
even lower than a single LED. The operating voltage of the module is from 1.9 to 3.6V, but
the good thing is that the other pins tolerate 5V logic, so we can easily connect it to an
Arduino without using any logic level converters.

Arduino NRF24L01 Specifications

General

Maximum Data Rate	2 Mbps
Number of Channels	125
Interface	SPI
Data Rate	250kbps, 1Mbps, 2Mbps
Operating Voltage	1.9V - 3.6V
Current Consumption	11.3mA transmitting, 12.3mA receiving
Range	Up to 100 meters (open space)
Dimensions	15mm x 29mm