I had the same problem but the other direction. I.e it was reading to high, not to low.
The fix for it was to resolder the resistors in the voltage divider on Vin. The ones ViennaTom marked with a red circle in his picture.
A bad solder connection can add resistance and with that throw your measurements out.
Report your hardware problems here. Include as many details as possible with pictures to get the best possible help and feedback.
[phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1236: count(): Parameter must be an array or an object that implements Countable
Who is online
Users browsing this forum: No registered users and 4 guests