i'm trying to build a circuit that when it sense's light it will blink a pair of LED's alternately. I wouldn't have thought this to be a very hard project, but i've killed a couple days on it already. I'm building my little sister-in-law a jewelry box that when it opens it will play a song and blink the led's. If possible i'd like to have them shut off after a period of time. I don't have room for an arduino, so i was thinking there should be a way to do this w/ a 555 timer and ldr sensor. The ldr will detect when the lid opens and then start the blinking lights.
Any help will be greatly appreciated!
Any help will be greatly appreciated!