Recent content by Wagner

I'm done calibrating for now. Dry reads as -0.2368 and wet reads as -1.400. The range is then |-1.400|-|-0.2368|=1.163 and 1% is 1.163/100%=0.01163.

We had a quite windy day around here, so at 13:30 PM I put the probe out in the wind, and now it seems like it's connected and really getting dry: So now the calibration limits are -1.4 wet and -0.5 dry. Very impressive page you've got there :-D

Do you have any links to people that have tried to make them work? Apparently I get the same reading from the Current Register whether I put the probe in a bucket of water, or put it out in the open air. About -1.34. It seems to be highly temperature dependent too, but I'm not sure.

Are you referring to the soil moisture sensor, or...?

Thanks Eric. I dropped the sensor in a bucket of water this morning, so hopefully this will give me the 100% limit tomorrow. Then I'll bring out my fan heater and dry it afterwards to get the 0% limit ;-) I'm writing about the project on http://happyfarming.com.

I'm using the Moisture Meter MM2-R1-A together with the Watermark Soil Moisture Sensor WGS1-P and I'm reading the current register of DS2760 to be -1.43437 via 1-wire and owfs. Is this reading in volts? How do I convert -1.43437 to a useful soil moisture unit? Maybe kPa or something else. I...