Calibrating a capacitive moisture/water content sensor for hydroponics
As I’ve mentioned multiple times in my blog, moisture sensing is one of the most important measurements in a hydroponic crop that uses a significant amount of media. It allows…
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Using VH400 sensors to build an automated irrigation setup
I have written several posts in the past about the measurement of water content in media, I have covered some very low cost and easy to use sensors that can…
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Timing irrigations with moisture sensors in hydroponics
After discussing the different types of off-the-shelf sensors for measuring moisture in hydroponics (1,2,3), we are now going to explore the practical use of these sensors to time irrigations within…
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Tensiometers (irrometers) the best way to time irrigations in hydroponics
I have recently written blog posts about the measurements of water content in media in hydroponics. The first one was about the problems with resistive moisture sensors in hydroponics and…
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The Chirp Sensor: A plug-and-play solution to moisture monitoring in hydroponics
If you want high yields in hydroponics, then you need to monitor moisture quite closely. Watering plants when they need it – and not on a timer – is critical…
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How to identify resistive moisture sensors and why to never use them in hydroponics
The measuring of media moisture, also known as water-content, is critical to successfully irrigating crops in hydroponics. Badly timed irrigations cause lots of the problems faced by novice and even…
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