LED is not blinking about micropython-esp32-ulp HOT 3 OPEN

I had a quick look and I have the feeling the PIN might not be in output mode.

This line sets the output mode: https://github.com/micropython/micropython-esp32-ulp/blob/master/examples/blink.py#L63

Did you change the RTC_IO_TOUCH_PAD2_REG and RTC_IO_TOUCH_PAD2_MUX_SEL_M appropriately? As per this mapping table, those constants need to be changed to RTC_IO_PAD_DAC1_REG and RTC_IO_PDAC1_MUX_SEL_M respectively (see comments at the end of each line of the table for the "normal" GPIO pin number for reference).

Give it a try. If that doesn't do it - I happen to have a "Heltek Wireless Stick", which also has its onboard LED on GPIO 25 / RTC 6, so I could test it on my board at some point.

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That`s exactly the point! Thanks a lot for your great support. I have changed the two definitions and now it works. Thanks again!

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Thanks for letting me know. I will try update the example file to better explain this for future users.

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