Garage door openers primary operate on 433 MHz frequency band. The technology of these fobs is very basic and crude, and have no security or encryption in place.

In our previous post, we showed you how to set up two RTL-SDR dongles to work in a Raspberry Pi and run a python library: pyrtlsdr. Get the

In this post you will learn how to use one or more RTL-SDR dongles in your Raspberry Pi and set up to use a Python library to develop

The problem When using different USB devices in your PC, you may have found two issues: You run out of ports in your PC: most PCs come with

If you want to record your garage door opener signal in order to, for example, see the coded pulses you can do it with a RTL-SDR dongle. If

  In this post we will be reviewing the RTL2832U dongle, available at Gearbest for only about 8 €.     What it is This is a portable