Topics created by VintageSlots

@vintageslots The factory test code reads the voltage. https://github.com/Xinyuan-LilyGO/TTGO-T-Display/blob/master/TFT_eSPI/examples/FactoryTest/FactoryTest.ino

I have received more TTGO with cases and they program fine. Looks like I got a defective unit.

@teastain Thank you very much. That fixed my problem.

I found the problem.

I forgot the S3 uses a different TFT_eSPI library.

Once I restored the old library things are working.

@vintageslots when you upload a program to the device, in ArduinoIDE there are these messages in the bottom of the scree in red/orange:
esptool.py v4.2.1
Serial port /dev/cu.usbmodem101
Connecting...
Chip is ESP32-S3
Features: WiFi, BLE
Crystal is 40MHz
MAC: 68:b6:b4:21:63:19
etc...
You can tell if it is T-Display or older TTGO by looking at them. The T-Display S3 has a screen that covers the while board(!) and the TTGO does not.

My setup and example GitHub repository:
https://github.com/teastainGit/LillyGO-T-display-S3-setup-and-examples

LilyGO GitHub;
https://github.com/Xinyuan-LilyGO/T-Display-S3

yes.

The TTGO has an amazing bright high resolution display, probably driven by an SPI interface.
You can get a larger SPI display. I2C is easier but VERY slow to refresh, OLEDs are often monochrome but the recommended library needs fiddling to get right.
(all my comments art based on my experience)
So, you have to find and configure the external SPI pins of the TTGO.
The documentation is sparse and a little daunting.
Good Luck!!!
-Terry