[Paul Stoffregen] proves that it can be pretty easy if you use the CapSense library for Arduino. Here he’s created three touch sensors, connecting them to the Teensy microcontroller with two ...

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 ...

The system here uses a cheap Arduino board, a few sensors, and a magnetic contact switch. It’s then hooked into the Adafruit IO and connected to IFTTT, so you can set up alerts in any way you like.

Because of the affordability and seeming ubiquity of the Arduino ... sensor board for an Arduino out the door. We think they’ve done a remarkable job. A Geiger tube is a remarkably simple ...

The pins for connecting temperature, humidity or motion sensors can be digital or analogue, including 5V and GND. As it is Arduino-compatible, standard shields can be connected to the board. So ...