methodormadness/fpipstouchsensoraddon

an optional, semi-customizable board to add touch sensors to a funnyplaying AGB IPS screen ribbon, instead of using the SEL+R/L button combination

FPIPSTouchSensorAddOn

So there is an issue, apparently FP ribbons dont like a short to ground, and requires a delay. It should still function if you populate u3, c3, and c6 and use a touch sensor on it though

an optional, semi-customizable board to add touch sensors to a funnyplaying AGB IPS screen ribbon, instead of using the SEL+R/L button combination

You can think of the touch sensors connected to P1 and P2 as "momentary" buttons, where as the touch sesnor on P3 act as a "toggle" switch(tap once to enable, tap again to disable)

I havent yet built this, I cannot verify that it actually works as intended, for building and installation I suggest referring to the schematic file, as it contains some notes.

BOM

RefDes	Part	Spec Sheet
U1,U2,U3	TTP223-ba6	https://datasheet.lcsc.com/szlcsc/TTP223-BA6_C80757.pdf
C1,C2,C3	22pF Capacitor	N/A
C4,C5,C6	0.1uF Capacitor	N/A

Connections

Pad	Destination
TP1	L On FP Ribbon
TP2	R On FP Ribbon
TP3	SEL On FP Ribbon
TP4	3.3v on AGB
TP5	optinonal, tie to ground if you dont populate U3, C3, and C6
TP6	GND On FP Ribbon
P1	Touch Sensor for decreasing brightness
P2	Touch Sensor for increasing brightness
P3	Touch sensor for select(optional, only needed if you populate U3, C3, and C6)

Notes

This should, in theory, work on other IPS kits too, though the connections might be different, I based this off of the FP kit.

Credits

Zekfoo for catching some mistakes I made during the original board design process and for a third touch sensor(optinal) for the SEL pad