| Electronics > Projects, Designs, and Technical Stuff |
| Magic LEDs |
| (1/1) |
| wholder:
I've posted a YouTube video that shows how to program an Arduino to “Magically” switch an LED on and off by shining a keychain light at it. The video describes how the technique works for one LED as well as for a set of 8 LEDs, each of which can be switched on and off independently. There also a bonus effect shown at the end of the video. Complete source code is available for all 4 examples and can be downloaded from a web page that’s linked in the description for the video. Enjoy! Wayne |
| chris_leyson:
Thanks Wayne that's really neat. It would never have occurred to me to use a LED's junction capacitance to measure ambient light so I've learnt something new today, thanks. Given your YouTube video a thumbs up. |
| cdev:
Miraculoso! |
| Navigation |
| Message Index |