T display S3 power supply

Reply to T display S3 power supply on Sun, 10 Sep 2023 17:20:47 GMT

pbatch — Sun, 10 Sep 2023 17:20:47 GMT

@teastain2 Thanks for the hint !
This is exactly what I was looking for and worked perfectly.

Reply to T display S3 power supply on Tue, 04 Apr 2023 09:09:01 GMT

papbo — Tue, 04 Apr 2023 09:09:01 GMT

@teastain2 Hello,
Fine with Pin 15 setup output high, LCD is working fine with only a 5V supply on the +5V pin
Have a nice day

Reply to T display S3 power supply on Tue, 04 Apr 2023 08:56:08 GMT

papbo — Tue, 04 Apr 2023 08:56:08 GMT

@teastain2 Hi,
Thanks for the support, I will add the command and test
regards

Reply to T display S3 power supply on Tue, 04 Apr 2023 01:29:27 GMT

teastain2 — Tue, 04 Apr 2023 01:29:27 GMT

@papbo I made a GitHub repository to support the LilyGO T-Display S3 here:
https://github.com/teastainGit/LilyGO-T-display-S3-setup-and-examples
Yes, you should turn on:
(if you are NOT running one of my sketches), you should add:
#define LCDpin 15 just before the setup and then in setup add:
pinMode(LCDpin, OUTPUT); //"triggers the LCD backlight, and enables remote power, such as battery
digitalWrite(LCDpin, HIGH); //on startup"

Reply to T display S3 power supply on Mon, 03 Apr 2023 16:14:37 GMT

papbo — Mon, 03 Apr 2023 16:14:37 GMT

Hello,
If I connect the USB cable on the display, I can measure 5V on the pin labeled 5V.
However if I connect 5V on the pin labelled 5V, the display is not working. I suppose that this pin is only an output pin or we need to activate a Gpio Pin nr XX to HIGH or something else.

Reply to T display S3 power supply on Fri, 31 Mar 2023 21:57:32 GMT

teastain2 — Fri, 31 Mar 2023 21:57:32 GMT

@papbo On the schematic It would appear to be OK.
I would connect 5V to the USB connector, to be sure!