This moisture sensor circuit is based on a design by Forrest Mims, and adds a Shunt Ammeter so that the output is 0 to +5 Volts instead of amperes. We are using it for the ITPlants project, so that when soil moisture drops below a minimum, the plant can make a phone call for help. Other call-worthy events will be a thank-you when the plant does get watered, a warning if the plant is watered too often, and a follow-up call if the watering is insufficient. This is going to be one chatty shrub.
hi rob,
i’m wondering if you’ve discovered a circuit for detecting changes in biopotential of the plants, something like this:http://www.borderlands.com/archives/arch/schemati.htm
I’ve built this, and there is some confusion about the op AMP section, with the batteries.
Looking foward to your comments..l
Thanks,
Daniel
We haven’t done anything with biopotential. Mostly we’re concerned with monitoring the basic health of the plant, so moisture, light and soil chemistry are our focus.
How do you calibrate with this circuit reliably?
Dear Sir,
This is a very interesting concept. Could you please elaborate more on the system or provide links or references for the same.
Thank you.
hi
can i ask you a favor to please send me one copy of the whole circuitry for moisture sensor and as well as its source code?what type of microcontroller did you use?what kind of program did you use?
thanks allot,your response is highly appreciated.this would help me in my thesis..
hi
can i ask you a favor to please send me one copy of the whole circuitry for moisture sensor and as well as its source code?what type of microcontroller did you use?what kind of program did you use?
thanks allot,your response is highly appreciated.this would help me in my project..
i am doing a project on an automated sprinkler system. please do reply.
i am a 3rd year electronics engineering student from india. i study in BITS Pilani goa campus.
The campus website is http://www.bits-go.ac.in