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 ...

What happens when an engineer builds a smart garden? This Arduino-powered system automates watering while collecting ...

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 ...

To help monitor that environment he built this sensor array which displays temperature and soil moisture readings. Temperature is quite simple. He’s using a TMP36 sensor which is held a few ...