ESP Strapping pin & TFT Res. Code upload Failure. Flaw in PCB

[MJD19994]

You currently have the TFTs RES pin connected to GPIO 12 which is the strapping pin, with both the TFT & ESP on the PCB when I try upload code the TFT Res is causing GPIO 12 to pull low and set the Flash voltage to 1.8v causing a failure when trying to actually upload the code. My work around has been to pre-program my ESPs but that means once I fully assemble everything I will not be able to make any updates to the code.

[silentfox2023]

There are no issues with the schematic diagrams and PCB fabrication files provided by the author, and I have completed the fabrication with everything functioning properly. However, the TFT_eSPI library needs to be used, and the author did not provide default pin definitions. Therefore, it is necessary to modify the code in the User_Setup.h file within the TFT_eSPI library to define the corresponding pin numbers. The code is as follows:

// ###### EDIT THE PIN NUMBERS IN THE LINES FOLLOWING TO SUIT YOUR ESP32 SETUP ######
// For ESP32 Dev board with 1.33-inch ST7789 display
// The hardware SPI can be mapped to any pins
#define TFT_MISO 5
#define TFT_MOSI 35 // SDA pin
#define TFT_SCLK 36 // SCL pin
#define TFT_CS 17 // Chip select control pin
#define TFT_DC 16 // Data Command control pin
#define TFT_RST 5 // Reset pin (could connect to RST pin)
#define TFT_BL 7 // LED back-light control pin

[doxuanhop]

Which shops sell this monitor?

[MJD19994]

I used generic ones from Aliexpress
https://a.aliexpress.com/_mMou6fF

What display did you use "successfully" because the fact remains the GPIO12 is a strapping pin and the displays I have used cause it to pull low causing issues with uploading

[MJD19994]

It seems he did a rebuild, I was working on the previous version. Your board looks like nothing I have

[MJD19994]

I'm closing this because the rebuild removed the use of the strapping pin with the display