@jwd3ca NO!
Unfortunately I didn't find a solution.
As written above, I just left the PSRAM disabled, as i don't need it in my application.

@saiaman01 What exactly do you want to know or see?
May be the two pictures are of help to you.
Or do you need a schematic or any explanation?

Picture 1

Picture 2

I am happy to read that the post was helpful.
Which changes did you apply to make it work?

@devilstower Thanks again to Devilstower!
Sounds very promising and worth continuing with my project.
I'll keep you informed (will take some time).

Many thanks to Devilstower!

I am aware of these accuracy-issues of GPS readings (analog measurements in general).
My plan is to read in the GPS-Readings as fast as possible and store time and value on a SD-card.
Evaluation und graphical display of the stored values will be done offline on a PC.
This will allow to do any kind of averaging like "moving average".
I am hoping of getting an accuracy of < 0,5 meter (3 sigma) at a given static position.
So far I have no idea on how many measurements need to be done and averaged to get this accuracy.
I also do not know, how fast GPS-measurements can be done and if there is a trade off between measurement rate and accuracy.

Do you have any further informations and/or recommendations on "accurate" GPS-measurement-hardware which is compatible to the M5Stack-Fire?

Additional question: Does anyone know a way to read the GPS position from an iPhone with a M5Stack Fire (e.g. in 1-second intervals)?

With a M5Stack Fire plus a GPS module, I want to record the mowing path or the position of a lawn robot, record it and display it offline (possibly live) on a tablet or a PC.
Programming would be preferred with Arduino.
Has anyone tried this or seen such or similar applications (such as recording the jogging path or a motorcycle tour)?
I would be pleased with any feedback. Thank you very much.

If @ajb2k3's suggestion didn't help, you could look into this:

I am not sure, but did you this: (from: https://github.com/McOrts/M5StickC_Nixie_tube_Clock)

Update Nixie Tube images

Execute the lcd-image-converter.exe include in this repository.

" Png or Jpg is read from File->Open Menu. The image will be displayed when loaded.
Select: Option->Conversions Menu. The top Preset: selects "Color R5G6B5".
Select: Image tap and select “8 bit” for Block size :. Press "OK".
The example "vfd_35x67_8.c" is output by "Convert ..." in File-Convert Menu. Know in advance the destination path. Tick: Import All Images You can also output all the images with “Convert ... all”.
Edit .c converted file. You will get an error as it is, so fix it with your editor.

" Change: "Static const uint8_t image_data_vfd_35x67 [4690] = {" at the top of the file deleting "image_data_" as result of "static const uint8_t vfd_35x67_8 [4690] = {".
At the bottom of delete de entire line: "const tImage vfd_35x67 = {image_data_vfd_35x67, 35, 67, 8};
Save the example "vfd_35x67_8".c***

May be you could send us the complete compiler-error-listing again, as the board-selection is correct now.

(Btw: as I don't have a M5Stick-C, i can not check even my own suggestions!)

Without wanting to anticipate @ajb2k3 :

Your first screenshot says "Fehler beim Kompilieren für das Board ESP32 Pico Kit" and this board is also listed in the lower right corner of the screenshot.
I think, that you should first change the board-Type in the Arduino IDE under 'Tools/Werkzeuge' - 'Board/???' - .... to: 'M5Stick-C' and than try to compile again.
May be (and I hope) it helps ...

@ajb2k3 said in M5Stack Capacitive TouchScreen:

shock you don't know our Jimmy?shock

I'm sorry I didn't know Jimmy Lai before! 😢
However, now, after watching https://www.youtube.com/watch?v=FLcXPGfMqbM I do! 👍
It is never to late to learn! 😉