LCD Noise?

Discussion in 'General Electronics Chat' started by Tobias, Jun 17, 2009.

  1. Tobias

    Thread Starter Active Member

    May 19, 2008
    When I test this project with my ignition tester running, all of my outputs are working correctly. However the NewHaven display part number NHD-0420D3Z-FL-GBW seems to be picking up noise because the text goes nuts. I turn off the ignition and repower the PIC and the text is correct. Apparently the serial stream is acquiring a bit of noise. Can I fix this with a Cap or a pull-down resistor between signal and ground? I am using 9600 as the baud rate