It's basically a digital clock having some basic functionalities like alarm, timer & stopwatch. It is made on tinkercad using Arduino Uno, LCD display, pushbutton, led, potentiometer, & buzzer. - ...

arduino keypad controlled stopwatch/timer . Contribute to bnadarevic/BodgeWatch development by creating an account on GitHub.

[ZHut] managed to bring these two worlds together by presenting how to make an Arduino blink an LED in conjunction with a 555 timer. We know, we know. It is hard to decide how to comment about this.

This hack was built for [Hlesliebole]’s Nikon D3100, but he says it should work with any DSLR and remote shutter. This initial build uses an LED as a stand-in for the remote shutter that he ordered.