Hello,
I plan to run my Nodemcu with ESP Easy Mega with Batterys/Accu as Powersupply. Is it possible to monitor the Powersource used and send the Voltage also via mqtt?
Monitoring Battery/Accu
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Re: Monitoring Battery/Accu
Short Answer:
Yes.
Long Answer:
Use the "Analog input - internal" Plugin. ADC input is on pin A0.
You MUST use a voltage divider that scales your maximum external voltage so it does not exceed 1VDC:
https://www.letscontrolit.com/wiki/inde ... ge_divider
https://www.microcontroller-project.com ... nitor.html
Notes: Do not use a firmware release with "VCC" in its name. Some NodeMCU boards include a voltage divider (see details in link above).
- Thomas
Yes.
Long Answer:
Use the "Analog input - internal" Plugin. ADC input is on pin A0.
You MUST use a voltage divider that scales your maximum external voltage so it does not exceed 1VDC:
https://www.letscontrolit.com/wiki/inde ... ge_divider
https://www.microcontroller-project.com ... nitor.html
Notes: Do not use a firmware release with "VCC" in its name. Some NodeMCU boards include a voltage divider (see details in link above).
- Thomas
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