This module uses the 2.4GHz transceiver from Nordic Semiconductor, the nRF24L01+. This transceiver IC operates in the 2.4GHz band and has many new features! Take all the coolness of the nRF2401A and add some extra pipelines, buffers, and an auto-retransmit feature - very nice!

Note: We now populate these boards with the nRF24L01+. The '+' version of the IC has improved range, sensitivity, and data rates. The command set is backward compatible with the original nRF24L01.

Features:

• Voltage: 3-3.6V (recommended 3.3V) V
• Maximum output power: +20dBm
• Emission mode current(peak): 115mA
• Receive Mode Current(peak): 45mA
• Power-down mode current: 4.2uA
• The real GFSK monolithic transceiver chip
  
• Built-in hardware and link layer
  
• Automatic response and automatic retransmission function
  
• Address and CRC check function
  
• Channel switching time is very short, can be used for frequency hopping
  
• Fully compatible with nRF24XX series
  
• The global open ISM frequency band, the maximum 0dbm transmitted power, free license to use.

Specification:

• Low working voltage: 1.9 ~ 3.6 V
  
• I/O can accept 5v level of input
• Wireless rate: 1 or 2 MBPS
  
• SPI interface rate: 0 ~ 8MBPS
  
• Transmit power +0dB
  
• 125 optional channels work
• Transmission distance up to 100 meters in outdoor open occasions