Advice on Light Dependent Resistor (LDR)?
I would like to control a 3V motor using a LDR which would get it's light from a graphic on a computer screen. The motor speed would be dependent on how bright a block on the screen is, varying from black to white - full speed, off.
I need a bank of LDR's controlling several motors with software controlling the shade of the black squares (each LDR will be insulated from the others with a rubber housing).
Could you give me advice on which make/model LDR would be suitable for the light range and voltage.
(The LDRs are attached to the monitor screen in their housings)
- amania_rLv 77 years agoFavorite Answer
Any LDR will do. You need to amplify the signal to drive the motors so some sort of transistor circuit is required.