GPIO #18 - LED Backlighting
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.
Page last edited January 20, 2016
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