RF 434MHz Sniffer

I use my RF 434MHz Sniffer to detect packets of data sent from RF 434MHz devices such as LightWaveRF remote controls or my British Gas RC2 wireless thermostat.

I use a 3.5mm audio jack to feed the data into the Line-In socket on a PC sound card, and analyse the data using Audacity.

The gadget is very simple. It is a small box with the audio jack socket and a switch. The box contains a 3 AA battery pack and a mini breadboard with an RF 434 MHz receiver from Cool Components and a simple voltage divider circuit to produce a waveform with a maximum 1v magnitude, as required by the sound card line-in.

I based this on articles such as Capturing IR and RF Codes.

This entry was posted in Electronics, gadgets, Home automation. Bookmark the permalink.

One Response to RF 434MHz Sniffer

  1. Pingback: LightWaveRF magnetic switch | Geek Grandad

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