Abstract: This article presents the design and application of an Arduino UNO-based system incorporating nine red Light Emitting Diodes (LEDs) and a temperature and humidity sensor (DHT22) for research ...

Code to simulate the operation of a traffic light using Arduino Uno. It controls LEDs in red, yellow, and green connected to digital pins 8, 7, and 6, alternating between them with intervals of 1 ...

Light painting is a technique which allows you to “draw” on a photograph by moving a light past the camera during a long exposure shot. While it can be difficult to master, light painting allows for ...