Hello westfw,
I tried your patched version of your onewire library and unfortunately it still gives exactly the same results. The board cannot communicate with the sensor.
I removed my earlier onewire folder from the documents/Arduino/library folder and added your modified library so I know I was using yours.
Hey,
I've been able to test my patch for SerialFlash on OneWire with a real sensor this afternoon.
Paul has been very kind and already merged it in master, so you can try it directly from that repo.
I encountered the same issue using a temperature sensor DS18B20 with an Uno WiFi Rev 2. It is the OneWire librairy that is defficient on this board. To solve this issue you can try to replace it with this other library :