RE: Forget Me Not Challenge Design Challenge Post 09: Soil Moisture Monitor

janisalnis — Fri, 14 Nov 2014 23:49:12 GMT

Nice idea about moisture sensor for soil humidity measurement, but the sensor would need to be placed inside the soil, however it would get wet then. So there seems to be no streight forward solution.

RE: Forget Me Not Challenge Design Challenge Post 09: Soil Moisture Monitor

mcb1 — Fri, 24 Oct 2014 05:29:43 GMT

NIce work.

Your design shows no means of air flow, so effectively there is likely to be little change from the air trapped inside the housing.

With the smaller tube, and nothing 'forcing' the air to exchange, it is unlikely to reflect the soil moisture.

Possibly an air bleed top and bottom might help with sucking it up, but the container is going to be influenced by temperature and therfore impact on the RH reading.

Your Humidity v Moisture measurement will let you know overall transvaporation and be able to adjust an automatic reminders accordingly.

ie water me before I dry out....

Mark