Over the last few weeks I have been helping out the guys over at OpenTRV with an implementation of the FHT protocol for use with HopeRF RFM22B and RFM23B modules.  My as-yet unreleased sensor modules (as seen in another post) make use of an RFM23B, and I have an interest in evaluating the Conrad/ELV FHT8V [...]

A simple example of a custom Gnuradio block for decoding a proprietary sub-GHz radio protocol.

I had a dead motherboard that had been kicking around for a while after a failed BIOS update.  The flash part on there was the Winbond W39V040B, which is 3.3V only and has an LPC interface.  The device programmer I have access to wouldn’t touch it, so I put together some simple AVR code to [...]