G+_Michael Prine Posted June 26, 2017 Share Posted June 26, 2017 I just discovered an issue with reading voltage levels on the analog pins if the Arduino is being powered thru the VIN pins. If you use the USB or 9 volt plugs to power the Arduino you can get useful data by doing an analogRead but if the board is being powered thru the VIN pin anything over 3.49 volts reads as 1023 where when plugged in thru the USB the same voltage reads as 711. Link to comment Share on other sites More sharing options...
Recommended Posts