[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors. The … ...

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very ...

These include measurements on DC current levels, rotary position, and gap, surface, or leakage-field levels. Hall-effect sensors: A History provides some background on these sensors.

The ArduIMU V4 is an Arduino based integrated measurement unit that offers a complete wireless sensor module that started as an open source project by 3DRobotics back in 2007.