AakashDey
Newbie level 4
I want to measure the AC voltage through controller (ESP32). So, I have designed a schematic which is attached. As per as my calculation, for 230VAC voltage. the voltage after the divider should be 2.76V. But, practically I am getting 1.9V. Similarly, with 110VAC I am getting 1.2V in practical.
Why I am getting such inaccurate voltage after the divider?
Why I am getting such inaccurate voltage after the divider?