Wolle

It could be a timing problem. Maybe a ` vTaskDelay(1);` like in the example code helps to give the internal task computing time.

Yes, if you have a light sensor you can connect it. The sensor is recognised automatically. Without BH1750, the display brightness can be adjusted using the slider. With sensor: The...

I can't answer that question. There are displays that do not have a pin for the backlight.

Okay, then the brightness control will certainly work with the slider. The BH1750 communicates via the I2C bus (SDA/SCL) This is the code in setup(): ````c++ if(I2C_SCL != -1){ _f_BH1750_found...

If the sensor is found, the I2C communication is certainly OK. Maybe the brightness symbol is grey, then the TFT_BL is not assigned to a GPIO 

Yes, the settings sometimes need to be adjusted. Good luck with your project.

I suspect the Arduino version is < V3 because: `error: 'i2s_chan_handle_t' does not name a type` Try this template, https://github.com/schreibfaul1/ESP32_Arduino_ESPIDF

With an ESP32 with 4MB Flash you have ~3.4MB available. That's not enough?

Additional preprocessor instructions can also be a source of errors. If you only need only the MP3 decoder, you can also remove most of the code, not just the other...

Hi Franz, before I published the version, I did exactly the same. I rewrote the SD card and cloned the Git repository into a new folder. I rule out HW...