Capacitive Soil Moisture Sensor Nodemcu Wemos D1 Mount
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Holds Wemos D1 above the capacitive soil moisture sensor, together with 5v voltage regulator (7805) and a DC jack
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Model information
- Source
- Printables
- Category
- Outdoor & Garden
- License
- GNU General Public License v3.0
Uses one of those soil sensors,
https://duckduckgo.com/?q=capacitive+soil+sensor&iax=images&ia=images
Together with
https://www.wemos.cc/en/latest/d1/d1_mini.html
And (optionally) 7805 (I use it to lower the voltage from supply)
Alternatively you can use something like https://www.amazon.de/-/en/Buck-Converter-Voltage-Module-4-5V-7V/dp/B09Q8Q3ZVM/ to step down from higher (12v etc) voltages
Uses this standard common DC power jack https://www.aliexpress.com/item/32855109804.html
Everything is press fit together.
Sensor is periodically read by the analog in, I can't publish the code since the firmware is part of a larger infrastructure and doesn't make sense by itself but very easy to write.
I hope the schematic is obvious enough
I recommend this nice nodemcu lua interpreter firmware as opposed to writing C which most people seem to be doing https://nodemcu.readthedocs.io/en/release/