The part list consists of one Arduino, two resistors, and one IR emitter. That’s right, an emitter. When an LED (IR or otherwise) is reverse biased it can act as a light sensor.

We’ve featured loads of IR Arduino projects and they are all exciting and unique. The projects spring from a specific need or problem where a custom infrared remote control is the solution. [… ...

To make your own Arduino based oscilloscope, follow these four steps.Your board will be able to use up to four input channels at frequencies up to 7 kHz and as many as seven input channels at 4 kHz.

Makers, hobbyists and developers that are looking for an ultra Low cost 4 Channel 300KS/s Oscilloscope that is both Arduino compatible and been specifically designed to complement the DIY test bench.