energyzappa

Members
  • Content Count

    1
  • Joined

  • Last visited

  1. With the Analog shield mounted on an Arduino Leonardo, I'm seeing a zero error at each of the analog inputs with a zero voltage input or the Arduino's Ground connected to the analog pin. Using the signed read in non-differential mode, the A0 input reads -65 counts, A1 input reads -75, A2 input reads 85 and A3 reads -65. Is there any adjustment that I can make to the board to reduce this zero error? This zero error persists even when I switch from powering the board through the USB to a wall wart power supply. Thanks