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 turned on by setting the pin 13 as output, then ...

You can control the brightness of these LEDs using variable resistors VR1, VR2 and VR3 respectively. Parts Needed. Arduino UNO board – 1 ; 5mm LEDs Red, Green, Blue – each 1 ; 100K Variable resistor – ...

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

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 ...

Some projects are both educational and useful. We believe that [Jasper’s] Arduino based electronic load is one of those project. [Jasper’s] electronic load can not only act as a constan… ...

Developing a Simple NIRS System Using Arduino. Friday, June 3, 2016. 1:00 PM-3:00 PM. BIOMED Master's Thesis Defense Title: Developing a Simple NIRS System Using Arduino ... and the versatility of a ...

This article covers the circuits and the code to make that happen. ... Using motion detectors and an Arduino you can trigger lights, ... flash the on-board LED in front of digital pin 13.