thanks for your help!
I noticed in the datasheet that there are two supplies for the GT911: AVDD which turns on first, then VDDIO, then VDDIO and then the interrupt bit is polled to see what the I2C address should be.
However on the pinout for the RPi panel there is only a single power (3.3V) and reset and the interrupt pin is not present. Is it possible to get the schematic for the panel itself so I can understand what is going on here? From the datasheet for the controller it seems like interrupt is a pretty essential pin so I am wondering how its being handled.
thanks!
Jonathan
I noticed in the datasheet that there are two supplies for the GT911: AVDD which turns on first, then VDDIO, then VDDIO and then the interrupt bit is polled to see what the I2C address should be.
However on the pinout for the RPi panel there is only a single power (3.3V) and reset and the interrupt pin is not present. Is it possible to get the schematic for the panel itself so I can understand what is going on here? From the datasheet for the controller it seems like interrupt is a pretty essential pin so I am wondering how its being handled.
thanks!
Jonathan
Statistics: Posted by jwillick — Tue Jan 13, 2026 7:20 pm