I did not find any time to test any newer version than esp-idf 4.2 since we are in the release cycle of our product. We're also not looking into merging the suggested fix to our build pipeline since we don't want to deviate from the release branch. Will continue with our observed fix and see where q...

Hi Forum, We are in the final design stage of a new product of ours and we have an observation regarding additional current being drawn in deep sleep mode while ULP being activated. We isolated all pins and other components on our board to verify the current consumption is coming from the ESP32-WROO...

Hi, I managed to find more time for testing. The issue can be observed on all gpio pins on the modules. The shown glitches are only visible on GPIO39 and GPIO36 with the oscilloscope but function wise all other pins are also affected. By curiosity sake I activated the filter module https://docs.espr...

Yes I am using external pull-ups. Tested with 10k and 100k. No change in the pulses observed.
I've also tested with other modules we have in house ESP32-WROVER-B with the same observation.

Hi @besterm I have a similar observation with GPIO36/39 in combination with bluetooth. We are using GPIO36/39 as inputs from flow sensors that basically generate pulses in a range from 100-2kHz on named inputs. Once we activate the bluetooth module and connect to the device through BLE, we can obser...