Adafruit
Keyfob 4-Button RF Remote Control - 315MHz
This compact 4-button keyfob transmitter operates on 315 MHz and is designed to work with compatible 315 MHz RF receiver modules. Each button sends a distinc...
This compact 4-button keyfob transmitter operates on 315 MHz and is designed to work with compatible 315 MHz RF receiver modules. Each button sends a distinct command corresponding to four output channels, making it suitable for simple remote control applications.
The keyfob is small and lightweight with a range of approximately 7.5 metres (25 ft) depending on line of sight and obstructions. As a transmitter-only device, it will activate all paired receivers simultaneously — there is no sub-addressing for individual receiver control.
Key Features
- 4-Button Control – Four distinct command channels
- 315 MHz RF – Compatible with standard 315 MHz receivers
- Compact Keyfob – Small, lightweight, and portable
- ~7.5 m Range – Up to approximately 7.5 metres line of sight
Specifications
- Frequency – 315 MHz
- Buttons – 4
- Range – ~7.5 m (25 ft)
- Type – Transmitter only (no sub-addressing)
Ideal For
- Remote relay and switch control
- Home automation triggers
- Robotics and project remote control
- Simple wireless command systems
Jargon buster
Plain-language definitions for the technical terms used above.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
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