measure USB voltage on Lilygo ESP32 - SIM800L
Posted: Tue Mar 10, 2020 7:04 pm
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
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