I remember when I was a young student I lived next to a park, and I could hear bats! No longer the case, and not for a long time. I've loved this blog though,

I remember when I was a young student I lived next to a park, and I could hear bats! No longer the case, and not for a long time. I've loved this blog though, since coming across it somewhat randomly - looking into decoding the radio-broadcasts that update the Helsinki tram-displays. I never got it to work, despite a few attempts, but it is still something I'd like to come back to. I did get sucked into the world of decoding random 433Mhz transmissions, and doing protocol analysis with ESP8266 devices though. So that if the company sauna gets turned on I can now post to slack..