cleanflight VS rtl-sdr-blog

Wheni first stumbled across https://github.com/jopohl/urh (universal radio hacker) i couldn’t believe my luck.

I’ve done stuff like this manually before (as in just collecting all the bits and then trying to ascribe meaning, e.g. https://github.com/cleanflight/cleanflight/issues/1125#issue... ) but i used URH to reverse my bbq temperature sensors.

I have an alexa skill that shows the last 20 readings for both probes on a graph. It is stupidly over the top (a Pi with a cheap sdr dongle listens for packets from the bbq down the garden, it parses out the measurements and fires them into a dynamodb which is absurd but it was quick to do, then the Alexa skill just pulls from there and sends to a chart api that draws my line graphs to show on alex’s screen - totally absurd but great fun to do)

This? https://github.com/cleanflight/cleanflight/releases/tag/v1.1.0

This made it really easy to figure out how to interpret the packets from my wireless barbeque thermometer. Previously i used some monstrous excel for this kind of pattern finding, e.g. https://github.com/cleanflight/cleanflight/issues/1125#issue...

In the end the bbq temp sensor turned out to be trivial, using rtl433 on a raspberry pi I just log the packets to a dynamo table and alexa (using google charts from a lambda) plots the last 20 points on screen.

https://www.rtl-sdr.com/ is a good place to start for SDR articles, software and advise. Good luck.

I've reported it here: https://github.com/rtlsdrblog/rtl-sdr-blog/issues/18

Download the https://github.com/rtlsdrblog/rtl-sdr-blog or https://github.com/librtlsdr/librtlsdr version instead. Even try both, since there may be differences.

Take a look at the RTL-SDR, I have a Blog v3 and it's great.

This site has some great examples on what various inexpensive SDR hardware can be used for: https://www.rtl-sdr.com/. Use cases range from receiving weather satellite imagery, to reverse engineering radio protocols (e.g. for remote door openers). Several years ago I used an inexpensive DVB USB dongle containing the RTL2832U chip (which enables SDR), to sniff 2G/GSM broadcast packets.