Hi @felmue thanks for your clear answers, I don't thin it's possible to stretch it longer than what you did, that's pretty much what is possible right now using UIFlow with this bar widget

Hi @vgamlc I don't think you can change the volume of the beep. Although there is a setVolume() function the volume is only used in the PlayMusic() function, but not for the beep. Please also refer to the Speaker source code Thanks Felix

@zontex Hello, i am happy to tell you that i was able to solve the problem :-) One of my Hats has a defect LED and the code I used to test the other one was based on wrong assumptions. I simply set the RGB to 0xFFFFFF. But because the coprocessor on the servo-hat reminds the last active value, even after a power off, it never switched on the Led as long as I used the same value again and again. Changing the color of the RGB in a loop suddenly switched it on. Using the same code on the other Hat revealed that this one has a broken LED. Mystery solved! Thanks for your help so far and best regards Siggi @m5stack I think it would be a good idea to change the code of the 8servo hat, so that on power on, the LED is initialized with the stored values and not simply left off.

Thank you felmue. I didn't realize, that I need to update the M5Burner. Works like a charm now, thanks again. Cheers.

Thanks, that worked. Now, I need to find the MAC address of the ATOM. Is there an easy way to do that?

Hello @Zontex cool, you are welcome and thank you for taking the time to test and merge. Cheers Felix

The demo programs can be found in M5Burner so you can easily erase and install firmware and programs.

Hello @revta thank you for sharing your experience. Re ATECC608A: I did not notice the link in the M5Core2 documentation until now. However running an I2C scanner on M5Core2 doesn't reveal such a device (which by default should have address 0x35). All devices the scanner detects are: 0x34 (AXP), 0x38 (Touch), 0x51 (RTC) and 0x68 (IMU). The 8 pin IC close to USB-C you referring to I think is part of the protection circuit for the SD card - but I could be wrong about that. At this point my conclusion is that the ATEC608A never made it into the final design. Happy Stacking! Felix

The SPK Hat appears under C-Hat not hardware.