Hi all,
Just wondering has anybody made a 4 wire touch screen circuit before? I am trying this myself. Basically it works, but I cannot sense any touch approaching the edge of the screen, what did I miss?
All I did is follow the design reference from Adafruit Kippah touch screen section: https://cdn-learn.adafruit.com/downloads/pdf/adafruit-dpi-display-kippah-ttl-tft.pdf
It uses AR1100 from microchip for this design
Just wondering has anybody made a 4 wire touch screen circuit before? I am trying this myself. Basically it works, but I cannot sense any touch approaching the edge of the screen, what did I miss?
All I did is follow the design reference from Adafruit Kippah touch screen section: https://cdn-learn.adafruit.com/downloads/pdf/adafruit-dpi-display-kippah-ttl-tft.pdf
It uses AR1100 from microchip for this design