As part of my interest in IoT and Home Automation I spent some time looking for a non-destructive alternative to rrdtool for long-term storage and aggregation of sensor data.  The search did turn up a few alternatives, particularly OpenTSDB, but I was not especially impressed with its performance nor its complexity.  During the search I [...]

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