RallyCodriver
New member
I’m trying to use Teensy 3.2 with ER-TFTM050A2-2 5” 480X272 TFT display capacitive touchscreen and RA8875 library version 0.7b11p11 by Max MC Costa for sumotoy.
I have the SPI-based display part working perfectly.
I cannot get the i2C-based capacitive touchscreen part to do anything.
I’ve uncommented the USE_FT5206_TOUCH line in RA8875UserSettings.h
My i2C wiring is:
Teensy TFTM050A2-2
2 Touch interrupt JP1-33
18 SDA0 JP1-34
19 SCL0 JP1-35
I’ve set pull-up resistors on pins 18 and 19 by setting their pinMode to INPUT_HIGH.
I can find no documentation on it but I am assuming the RA8875 library uses the default SDA0 and SCL0 pins (18 & 19 per the Teensy 3.2 pinout card).
None of the RA8875 library example sketches for the Teensy that use the capacitive touchscreen respond to touches; only the display part works.
What am I missing? What am I doing wrong?
I have the SPI-based display part working perfectly.
I cannot get the i2C-based capacitive touchscreen part to do anything.
I’ve uncommented the USE_FT5206_TOUCH line in RA8875UserSettings.h
My i2C wiring is:
Teensy TFTM050A2-2
2 Touch interrupt JP1-33
18 SDA0 JP1-34
19 SCL0 JP1-35
I’ve set pull-up resistors on pins 18 and 19 by setting their pinMode to INPUT_HIGH.
I can find no documentation on it but I am assuming the RA8875 library uses the default SDA0 and SCL0 pins (18 & 19 per the Teensy 3.2 pinout card).
None of the RA8875 library example sketches for the Teensy that use the capacitive touchscreen respond to touches; only the display part works.
What am I missing? What am I doing wrong?