I have had a Lilygo T-Call [0] on my basement table all winter with the intention of building almost exactly this! (My idea was to use cellular instead of WiFi)

I have had a Lilygo T-Call [0] on my basement table all winter with the intention of building almost exactly this! (My idea was to use cellular instead of WiFi). Thank you very much for the write-up! [0]: http://www.lilygo.cn/prod_view.aspx?TypeId=50044&Id=1127&FId=t3:50044:3 http://www.lilygo.cn/prod_view.aspx?TypeId=50044&Id=1127&FId...