Monitoring power failure at home with the TTGO T-Call SIM800 https://github.com/Xinyuan-LilyGO/TTGO-T-Call
Framework used: Arduino
IDE used: PlatformIO Core
TTGO T-Call SIM800 library Forked from vshymanskyy/TinyGSM https://github.com/RoyTrenneman/TinyGSM