CC2500-RF-USB-Stick


USB RF transceiver stick based on CC2500RGPR and FT4222H (USB↔SPI bridge).
Implemented as a USB flash-drive style dongle with on-board PCB antenna.

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What’s on the board


  • FT4222H USB-SPI bridge
    • Provides standard SPI master interface over USB
    • Enumerates as USB device (driver support in Windows/Linux)
  • CC2500RGPR RF transceiver
    • Sub-1 GHz / 2.4 GHz ISM band
    • Connected directly to FT4222H SPI
    • Standard configuration mode supported
  • PCB antenna integrated into board
  • USB 2.0 Type-A plug (flash-stick style)
  • Power from USB bus only (no external supply)

Pinout (FT4222H ↔ CC2500)


FT4222H PinCC2500 PinNotes
SCLKSCLKSPI clock
MOSISISPI data out
MISOSOSPI data in
CS0CSnChip select
XGDO0/GDO2Interrupt / status lines

Power & Form Factor


  • Powered directly from USB Type-A
  • Compact PCB with integrated RF antenna
  • No extra components required to operate

Use Case


  • RF packet capture and transmission via CC2500
  • USB plug-and-play stick for wireless experiments
  • Can be used in custom RF tools, sniffers, IoT gateways

Quick Use


  1. Plug CC2500-RF-USB-Stick into USB port.
  2. Install FT4222H driver (if required).
  3. Use SPI commands over FT4222H to configure and control CC2500.
  4. Transmit/receive RF packets in 2.4 GHz band.

Notes


  • PCB antenna may require tuning for optimal performance.
  • CC2500 settings (frequency, modulation, packet format) configurable via SPI.
  • Heat dissipation negligible (low-power device).