While PIR sensors can be used with Arduino and other microcontroller boards, ... How to make a light-following robot in one afternoon How to make a light-following robot in one afternoon.

We know that measuring the speed of light with an Arduino is possible. It’s just that the implementation is hard. Last month we saw [Udo]’s blinkenlight shield that can be used as a lin… ...

The sensor has an infrared (IR) emitter and a 30×30 pixel IR camera in it. The object moving in front of the sensor has to be close enough to reflect IR light from the emitter back to the camera.

An Arduino can be used to test the life of any battery with less than 5 volts, Boxall says. So, for a quick way to see how much juice your AAA, AA, C, or D batteries have left, build this Arduino ...

With over 30 million developers worldwide, Arduino’s solutions offer a powerful answer to the talent shortage in engineering and break free from vendor lock-in with a robust line of open-source ...

Arduino’s $87 Plug and Make Kit comes with all the parts needed to build seven different IoT devices, including a weather indicator and a game controller. Electronics 101. Skip to main content ...