When you use a delay() function in an Arduino sketch, the processor stops everything it is doing until this delay is completed. That is called a blocking delay, because it blocks the processor until ...

A sophisticated Arduino-based timer system with RGB LED feedback, LCD display, and musical alarm capabilities, controlled via an IR remote. This project demonstrates practical implementation of ...

Droplet and StackAR, developed by MIT’s Media Lab, allow users to set timers or program an Arduino using light-based communication. By pressing the tool against a screen, flashes of light can ...