CC1101 Sub-GHz Module for Flipper Zero
A comprehensive guide to extending your Flipper Zero's wireless capabilities with the CC1101 transceiver module.
Frequency
300-928 MHz
Data Rate
Up to 500 kbps
Range
Up to 500m
Chip
Texas Instruments
What is the CC1101 Module?
The CC1101 is a low-power sub-1 GHz RF transceiver designed by Texas Instruments. When paired with the Flipper Zero, it significantly extends the device's radio frequency capabilities, allowing for broader frequency coverage and improved signal transmission.
While the Flipper Zero has a built-in CC1101 chip, an external module can provide better antenna options, extended range, and the ability to work with frequencies that the internal antenna isn't optimized for.
Key Specifications
Frequency Bands
- • 300-348 MHz band
- • 387-464 MHz band
- • 779-928 MHz band
- • Programmable channel spacing
Performance
- • High sensitivity (-116 dBm at 0.6 kBaud)
- • Programmable output power up to +12 dBm
- • Low current consumption
- • Fast frequency hopping
Common Use Cases
Remote Control Systems
Analyze and interact with garage doors, gates, and other remote-controlled devices operating in the sub-GHz spectrum.
Weather Stations
Receive data from wireless weather sensors that transmit on 433 MHz or 868 MHz frequencies.
IoT Device Analysis
Study and test IoT devices that use sub-GHz protocols for communication.
Signal Research
Educational purposes for understanding radio frequency communications and protocols.
Installation & Setup
Connecting an external CC1101 module to your Flipper Zero is straightforward. The module connects via the GPIO header using SPI protocol:
GPIO Pinout
GND → GND
VCC → 3.3V
GDO0 → GPIO pin (configurable)
CSN → SPI_CS
SCK → SPI_CLK
MOSI → SPI_MOSI
MISO → SPI_MISO
After physical connection, you can use the Flipper Zero's sub-GHz application with external module support enabled in the settings.
Legal Considerations
Radio frequency transmission is regulated in most countries. Before using the CC1101 module to transmit signals, ensure you understand and comply with local regulations regarding radio frequency usage. The Flipper Zero and external modules should only be used for authorized testing, educational purposes, and interaction with devices you own or have explicit permission to test.
Tips for Best Performance
- Use a quality antenna matched to your target frequency for optimal range.
- Keep connections short and secure to minimize signal interference.
- Consider using a shielded enclosure for sensitive applications.
- Update your Flipper Zero firmware to the latest version for best compatibility.
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