My project is to make an automated curtain system which closes at night & opens at dawn.
It'll be controlled by a photosensor (photodiode or LDR) & a timer.
The whole circuit is ok, except that I need a photosensor that only works with sunlight.... so that if someone shines a light on the photosensor at night, it won't be activated.
Any suggestions?
It'll be controlled by a photosensor (photodiode or LDR) & a timer.
The whole circuit is ok, except that I need a photosensor that only works with sunlight.... so that if someone shines a light on the photosensor at night, it won't be activated.
Any suggestions?