Ok. Great!
I hope your project goes well.
Regards,
Sara

The TFT lib from above is broken for the ESP32 (currently). However, under the hood, it appears to be using the Adafruit-ST7735 lib. After modifying the code to suit the Adafruit-ST7735 lib, I had it sort of working on the solder-bridged version of the above display (the screen was sideways) – but I knew I could fix that in code – SO AT LEAST it was working now on the Esp32…. and so, I thought I had my answer.

However, to double-blind blind I put in another unbridged display module that arrived today, expecting it NOT to work, but it did!

At this stage, I have no idea why days of experiments with multiple libraries failed with the first (TFT_eSPI, Adafruit_ST7735), whereas after just an hour today, I seemed to have fixed it. Perhaps there was a ‘problem’/sensitivity issue with the first display. Perhaps I just missed something. Or I failed to notice a loose wire or a bad jumper. Or, just perhaps, the solder bridge fixed a sensitivity issue with the first display.

At this stage, I am just going to plough ahead with the project and leave it for others to figure out a more complete answer.

OK, got it working with the (5V) Nano! (After the second go… I managed to get my MISO and MOSI mixed up, for which I blame Dyslexia!)

I’ll now try the solder bridge to see if I can get it working on the (3V3) Esp32.

Hi.
Try it with a 5V Nano.
It may also be something wrong with the wiring.
Regards,
Sara

So to make sure I have understood, if using the ESP32 (with 3.3V I/O), then one should bridge the jumper to allow for the correct I/O and power level sensitivity?

And, I did notice that the jumper was close to the voltage regulator (I assume that is what it is), but I had no idea if that was the ‘connection’ as it were, as well as being concerned it might do exactly the opposite (like on some ‘Pro Micros’ as a regulator bypass) since the Vcc input is connected to one side of the jumper.

The reason I ask is that all I have is a white screen when connected up to a 3.3V ESP32, showing that the backlight is working (and apparently nothing else). My next step is to test against a 5V Nano. And then I’ll try the jumper bridging.

Hi.
If it is similar to other displays, here’s what it means:
In the VCC pin, you can either use 5V or 3.3V depending if your J1 connection is open or closed:
VCC = 5V | J1=OPEN
VCC = 3.3V | J1=CLOSE

Regards,
Sara

Tony from France 🙂