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R.E.M. Beta DIY Screen Glitch Fix

494 views · Published 15 February 2017 · 11:57 · Indexed 10 November 2026

Channel: NickInTimeFilms · 2017 · Autos & Vehicles

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So it seems a seemingly insignificant modification to the pcb design has been the cause of all this glitching frustration. And with the help of Greg it was tracked down to a grounding problem with the screen where the vehicle ground would induct some interference and cause it to lose sync.

 - Fix # 1:
With a simple Jumper Wire from the Arduino Ground Pin (2nd from the bottom on the left) to the LCD R/W pin (5 from the right), all your screen glitch issues SHOULD disappear. If they don't then please let me know.

 - Fix #2:
The light sensor could also be causing screen interference issues as it is possible for the leads to physically touch some of the unused lcd contacts. Pop the board out of the case by working on the jack side first then pushing out the other side by slightly bending the case and pushing on the outside ring of the screen. Bend the Light Sensor out slightly so that you can apply a small strip of electrical tape to the pads and try to wrap it underneath a little too, then bend the sensor back into place. If you did a good job then the Light Sensor leads should be isolated from the lcd with the tape. That should do it.

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