There's a demo node set up at http://spiritplumber.ddns.net:8080/ which also goes on irc (irc.rizon.net channel #cellsol ). The antenna is inside our shop and goes out about half a mile, which isn't bad since there has been no attempt to optimize its range and it's less than 10cm long.
Well that is mighty interesting! I think I’ve got all the necessary parts to make a non-AVR-based unit on the shelf here... Cortex m0 LoRa feather and an ESP32 feather! Seems like a fun holiday project!
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