The datasheet says the AHT10 is a digital temperature and humidity ... i.e., by wiring a single sensor to the I 2 C line. Here is a crude schematic of the AHT10 module (borrowed from web). Next, I ...

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 ...