Hi All,
I am having the same troubles with my Nano 33 BLE.
It appears that OneWire now supports the Nano 33 IOT.
However, the latter is based on the SAMD21 microcontroller,
while the Nano 33 BLE is based on the Nordic NRF52840,
for which there is no support yet.
I already dug out the issue on Github, but as I understand it,
it will require someone who understands the NRF52 series MCUs as well as OneWire to fix it.
During some short (~1.5h) research I could find some work on onewire in the NordicDevZone.
Unfortunately, this is for the NRF51 series and then again,
I am not an expert and don't know much about the differences.
In this discussion, someone claims OneWire isn't too difficult to adapt for the NRF52.
I'll try to get in touch with him.
Hope that helps,
Felix