Am 10.03.19 um 19:46 schrieb Mick Sulley: > OK, but looking through Jan's checklist again - > > * power all sensors > * set the sensor EEPROM to 9 bit default resolution. > > ?? How to do that? Is it just a read temperature9 on DS18B20? > With recent OWFS, you simply write 9 to the sensor's tempres node.
> Then, the readout thread is as follows: > > 1. trigger a 12-bit resolution conversion on each sensor for > initialization. > 2. write something to /simultaneous/temperature to trigger all > temperature conversions at the same time. > 3. wait a second > 4. read /uncached/<sensorid>/latesttemp of each sensor > 5. If the result for a sensor is not 85°C, store and go to 2. > 6. 85°C. Check the resolution. If it is still 12 bit, that's a valid > reading. Store and go to 2. > > ?? How do I check the resolution? > Read the sensor's uncached tempres node. Kind regards Jan _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers