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janhieber / WaterCtrl

Automatically pour your flowers
MIT License
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Moisture measure wrong freq #1

Open janhieber opened 9 years ago

janhieber commented 9 years ago

When soil is under direct sun with high temps, the sensor reports too low frequencies.

The frequencies indicate that the soil is wet, but that is not the case.

Further examination required.

janhieber commented 8 years ago

ignore the ref commit

janhieber commented 8 years ago

Need to wait for first working board and sensors. Then we can log sensor data and do further observations.

janhieber commented 8 years ago

Reports from other people using this type of sensor say that we should use Plastik 70 by KONTAKT CHEMIE.

It should be better than epoxy resin. Also the people using this type of sensor have much longer sensors. So we can experiment with longer sensors or make the copper areas more narrow and use two caps side by side. sensor

mgeforce commented 8 years ago

I have used Plastik70 on my first sensor. Doesn't make any improvements against epoxy.

janhieber commented 8 years ago

OK, once the device works we will put different sensor solutions in one soil and check the behavior.