2.4Ghz CC2500 Serial RF Transceiver TTL UART Based

This is an FSK Transceiver module, which is designed using the Chipcon IC(CC2500). It is a true single-chip transceiver, It is based on 3 wire digital serial interface and an entire Phase-Locked Loop (PLL) for precise local oscillator generation .so the frequency could be setting. It can use in UART / NRZ / Manchester encoding / decoding. It is a high performance and low cost module.

It gives 30 meters range with onboard antenna. In a typical system, this trans-receiver will be used together with a microcontroller. It provides extensive hardware support for packet handling, data buffering, burst transmissions ,clear channel assessment, link quality indication and wake on radio . It can be used in 2400-2483.5 MHz ISM/SRD band systems. (eg. RKE-two way Remote Keyless Entry, wireless alarm and security systems, AMR-automatic Meter Reading, Consumer Electronics, Industrial monitoring and control, Wireless Game Controllers, Wireless Audio/Keyboard/Mouse). It could easily to design product requiring wireless connectivity. It can be used on wireless security system or specific remote-control function and others wireless system.


  • Low power consumption.
  • Operating Range: 30 meters
  • Integrated bit synchronizer.
  • Integrated IF and data filters.
  • High sensitivity (type -104dBm)
  • Programmable output power -20dBm~1dBm
  • Operation temperature range : -40~+85 deg C
  • Operation voltage: 1.8~3.6 Volts.
  • Available frequency at : 2.4~2.483 GHz
  • Digital RSSI



  • Car & Home security system
  • Remote keyless entry / Garage door controller
  • Wireless game controllers/mouse/keyboard/audio
  • Automation system


Digital I/O Type 3.3V TTL
IC used CC2500
Peripherals Integrated analog temperature sensor
Sensitivity -104dBm
Frequency 2.4~2.483 GHz
Other Excellent receiver selectivity and blocking performance, Digital RSSI output
Modulation OOK, 2-FSK, GFSK, and MSK supported
Power Output -20dBm~1dBm
Communication Interface 4-pin hardware SPI
Data Transfer Rate 1.2 to 500 kBaud
Power Supply
Operating Voltage 1.8~3.6 V
Operating Current 20mA in RX, 400nA SLEEP mode
Power 75mA
Connectors 1 x 8pins Header
Package Contains 1 x 2.4 Ghz CC2500 RF Transreceiver
Range 30m
Operating Temperature -40°C to +85°C


Low-Cost Low-Power 2.4 GHz RF Transceiver (Rev. C)

CC2500 Errata Notes (Rev. D)


Example Source Code:

CC2500 Sample PICmicro code

Pin assignment

Pin No.Pin NamePin TypeFunctionP1 VCC Power 1.8~3.6V P2 MOSI Digital Input SPI data input P3 SCLK Digital Input Clock input P4 MISO Digital Output SPI data output P5 GDO2 Digital I/O Digital output pin for general use
>Test signals
>FIFO status signals
>Clear Channel indicator
>Clock output, down-divided from Xosc>
>Serial output RX data P6 GND GND Ground P7 GDO0 Digital I/O Digital output pin for general use:
>Test signals
>FIFO status signals
>Clear Channel indicator
>Clock output RX data
>Serial output RX data
>Serial input TX data
Also used as analog test I/O for prototype/production testing P8 CSn Digital Input SPI Chip Select Input