You can use an external one or use the one soldered on the board (pin 13). Turn ON an LED Sketch This is a very simple arduino project where a led is ... I love all about electronics, circuit diagrams ...

This DIY gas leakage detector is designed for educational and basic monitoring purposes. For critical safety applications, ...

I realize many, if not most, pieces of electronic equipment now use graphic LCDs, Bluetooth to phones or tablets, or connections to PCs for informational display. But some things are way too simple ..

It is a pretty common first project to use an Arduino (or similar) to blink an LED. Which ... safety light that only works in the dark. A simple circuit, but it just goes to show that we tend ...

A simple way ... Of course you can use multiple sensors and outputs to trigger different effects depending on your needs. The Arduino is capable of driving small loads like an LED without extra ...

In recent episodes, she taught her audience how to build squishy circuits with LEDs and a heartbeat-sensor pendant using LilyPad, an Arduino microcontroller ... woodworking, and simple use of ...