Member #491123

Member Since: November 22, 2013

Country: United States

  • Never mind, I had no problem running it at 5V directly from the Arduino with the contrast value bumped up to 45 or above. With 10K ohm resistors on the control lines as shown in the sample hookup, I get a blank screen. Also removing the backslash from the sample code got garbage characters, so I left it in.

  • I’ve got 3 of these and wired them up as suggested in the hookup guide and downloaded the example code, and the only thing that seems to work is brightening and dimming the LED. I’ve started again from scratch at least twice, tried all 3 units, and verified all the connections match the hookup guide, and I still the ssame result; no graphics, no text, just a border. Any ideas as to what might be wrong?

No public wish lists :(