The hardware is consists of an Arduino microcontroller (here an Arduino Uno R3) and a pre-wired soil moisture sensor module. The soil moisture sensor module , built around the LM393 comparator, gives ...

This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level. It uses Arduino Duemilanove microcontroller board. Two wires placed in the soil pot ...

[url=http://arstechnica.com/civis/viewtopic.php?p=31622763#p31622763:2qs83ys1 said: You do some PCB stuff? I'm dying to go into basic electronics & circuits, but I ...

As such, I'd like to build myself some wireless moisture sensors for moderate scale production (consider 50 test points reasonable).