Dear all
I have a Lilygo ESP32 - SIM800L powered via the USB port.
Is it possible to monitor the voltage, so when this drops below a certain point, it can send an sms message (battery low) ?
Regards
Diederik
Search found 1 match
- Tue Mar 10, 2020 7:04 pm
- Forum: ESP32 Arduino
- Topic: measure USB voltage on Lilygo ESP32 - SIM800L
- Replies: 0
- Views: 2717