O'Keefe Electronics Inc. specializes in wireless RF technology using the Nordic Semiconductor nRF24L01+ 2.4Ghz transceiver.  The nRF24L01+ is a low cost single chip radio transceiver for the worldwide 2.4 - 2.5Ghz ISM band.   The transceiver contains a frequency synthesizer, crystal oscillator, power amplifier, demodulator and modulator, and an Enhance ShockBurstTM protocol engine.  Built in Power Down and Standby modes make the nRF24L01+ an ideal solution for low power battery applications and other wireless PC peripherals. With low power consumption and additional power savings management features, a coin cell battery operated application can last for several years.

Output power, frequency channels, and protocol setup are easily programmable through a SPI interface.  The nRF24L01+ can interface over SPI with a wide variety of microcontrollers.  Development tools are readily available for the following platforms:  PIC18, PIC24, C8051, LPC-P2148.

NRF24L01+ Features:
Worldwide 2.4GHz ISM band operation
Supports up to 2Mbps data rate
Advanced power management for low power applications
11.3mA peak TX current at 0dB output power
13.5mA peak RX current at 2 Mbps air data rate
900nA in power down mode 
On chip voltage regulator, 1.9 to 3.6V supply range
Enhanced ShockBurstTM hardware link layer
Automatic packet assembly
Dynamic payload length
Selective auto acknowledgment with payload and auto retransmit
6 data pipe MultiCeiverTM
5V tolerant inputs
Compact 20-pin 4x4mm QFN package