Hi There
I was wondering if some one could help me, I am building a very simple LDR circuit that turns on two led's when the light is shined on the LDR. I have based the circuit around a voltage divider,
http://www.doctronics.co.uk/voltage.htm
the LDR at the top has a resistance of about 2.5k when in light and the bottom resistor is 4.7k and it seem to work, on my multimeter i am reading just under 4v which is right for the LED's but there are not very bright especially compare to when i feed 3v direct from the batteries to LED's, i pruseme the difference is something to do with the amps but i've now a bit stuck about how to get the LEDs as bright as i want
Any help on this would be greatly appricated
Cheers
James
I was wondering if some one could help me, I am building a very simple LDR circuit that turns on two led's when the light is shined on the LDR. I have based the circuit around a voltage divider,
http://www.doctronics.co.uk/voltage.htm
the LDR at the top has a resistance of about 2.5k when in light and the bottom resistor is 4.7k and it seem to work, on my multimeter i am reading just under 4v which is right for the LED's but there are not very bright especially compare to when i feed 3v direct from the batteries to LED's, i pruseme the difference is something to do with the amps but i've now a bit stuck about how to get the LEDs as bright as i want
Any help on this would be greatly appricated
Cheers
James