Search found 3 matches
- Tue Aug 04, 2020 6:55 am
- Forum: General Discussion and Questions
- Topic: Voltage (< 36V) measurement of battery pack and displaying / saving the data
- Replies: 3
- Views: 2145
Re: Voltage (< 36V) measurement of battery pack and displaying / saving the data
A voltage divider should suffice. By default an ESP32 ADC measures from 0-1V. So if you connect a 470Ω resistor between the ADC input and Gnd, and a 22KΩ resistor from the ADC input to your battery, 33.6V will produce 0.7V across the ADC: 33.6*470/(22000+470) = 0.703 Note that the ESP32 ADC is not ...
- Mon Aug 03, 2020 1:07 pm
- Forum: General Discussion and Questions
- Topic: Build problem, include library?
- Replies: 7
- Views: 4434
Re: Build problem, include library?
Sup
it is not a compiler problem. As the error says the compiler couldn't find the header file.
I don't know which IDE you are using but try to add it through your IDE to your project files manually.
Or if its a built-in header file try
Cheers,
777
it is not a compiler problem. As the error says the compiler couldn't find the header file.
I don't know which IDE you are using but try to add it through your IDE to your project files manually.
Or if its a built-in header file try
Code: Select all
#include <version.h> Cheers,
777
- Mon Aug 03, 2020 12:47 pm
- Forum: General Discussion and Questions
- Topic: Voltage (< 36V) measurement of battery pack and displaying / saving the data
- Replies: 3
- Views: 2145
Voltage (< 36V) measurement of battery pack and displaying / saving the data
Hello everyone, I have a music-system which can be powered by 230V AC or its internal battery-pack which has an output of 33,6V. There are 4 battery LED's (3x green 1x red). The LED's are glowing voltage based (in certain voltage ranges). Now I want to build a battery testing system which would meas...