I have a ULP program that reads a rotary encoder and wakes the cores when input is detected, then WiFi is connected to do work, then back into Deep Sleep. While testing low power consumption, I observed this (where 'WiFi.begin?' = Whether or not WiFi.begin() was called before entering Deep Sleep; 'U...

Well what happens if you send the exact same request composed with your browser or Fiddler or similar? That's the first thing I would try, then you'll know if the issue is with your ESP32 code or the server.

Can you confirm that you ran the i2c scanner on the ESP32? And it found the accelerometer? It's unlikely to be a hardware issue if that is working fine. In that case, I would be double-checking the address. I suspect it's expecting 0x1D but your accelerometer is at 0x1C (or vice versa). Run the scan...

Select the correct board and it will be fine. The WROVER boards have a flag in boards.txt, "-DBOARD_HAS_PSRAM".

There's sample code that does exactly this:

https://gist.github.com/igrr/54f7fbe051 ... d7fbecfeab

I'm sure it's supposed to work with ESP32. I use tzapu's but I've made a lot of changes. Why haven't you included the error output here?

ulp_process_macros_and_load() fails with this error:
Is it possible to simply increase program size or will I have to try to rewrite it a lot more efficiently? Any general tips for an amateur to reduce the size?

EEPROM.length() has a default value of 0, so begin() will fail. Two options: Initialise an EEPROMClass and provide it with a size EEPROMClass myEeprom("eeprom",64); if(!myEeprom.begin(myEeprom.length())) { Serial.println("failed to initialise myEeprom"); } or pass the size into EEPROM.begin() #defin...

Have a look at this code, similar to yours, for how you might implement debouncing: http://www.switchdoc.com/2018/04/esp32-tutorial-debouncing-a-button-press-using-interrupts/ Take note also that the interruptCounter is reset there (interruptCounter=0) rather than decremented (interruptCounter--). J...

Well that's a very... creative... solution.

How is that working out for you?