Flip the 2.8" PiTFT display over and locate the pad with label #18. We need to cut this trace in order to properly use GPIO 18 (The Y Button is wired to this GPIO). By default, when GPIO 18 is triggered to ground, it will disable the LED backlighting on the display - Cutting the trace here will disable that feature.
This guide was first published on Jan 20, 2016. It was last updated on Jan 20, 2016.
This page (PiTFT Display) was last updated on Feb 25, 2021.
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