I am a complete novice at all things Arduino, so I thank you in advance for your patience with my ignorance.
I am using this Elegoo 2.8" Touch Screen. When I run graphictest.ino (attached), the command:
uint16_t identifier = tft.readID();
returns 0, 41 or 4141 at seemingly random intervals, when read by the line:
These values do not appear to be valid, and I get the following message on the serial monitor:
“TFT LCD test
Using Adafruit 2.8” TFT Arduino Shield Pinout
TFT size is 240x320
Unknown LCD driver chip: 0 (or 41 or 4141)
If using the Adafruit 2.8" TFT Arduino shield, the line:
should appear in the library header (Adafruit_TFT.h).
If using the breakout board, it should NOT be #defined!
Also if using the breakout, double-check that all wiring
matches the tutorial."
I have configured Adafruit_TFTLCD.h with the line:
#define USE_ADAFRUIT_SHIELD_PINOUT 1
or the line:
But I get the same results in all cases.
I have attempted to find Adafruit_TFT.h so I can substitute it for Adafruit_TFTLCD.h to see if that solves the problem, but I have had no luck so far.
If anyone can give me some suggestions of how to troubleshoot this issue, I would appreciate your help greatly.
graphicstest.ino (10.5 KB)