Voting resources, early voting, and poll worker information - VOTE. ... Adafruit is open and shipping.
0

RA8875 7" TFT tscalibration
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

RA8875 7" TFT tscalibration

by drazz52 on Thu Mar 05, 2020 3:56 pm

Using RA8875 and 7" TFT. Buildtest works but no touch sensing within 1/2" of all edges. Ts_calibration is better but calibration is not saved to Mega2560. All I need to know is where and how to adjust the base calibration. I've tried eeprom but won't take values. (RA8875.h) Tried massaging tsMatrix->An thru Fn. Again can't get it save. Tscalibration does change eeprom but can't get sketch to read or write to eeprom. At this point I don't think my code is needed. But if so, I am using buildtest with the graphics removed a dot placed in the center of the screen.

drazz52
 
Posts: 1
Joined: Sun Mar 01, 2020 4:57 pm

Please be positive and constructive with your questions and comments.