Hi everyone, I want to design a circuit to control the brightness of an led, depending on ambient light levels. I also want to make the upper and lower limits adjustable via two independent variable resistors.
I have looked at some 555 circuits, but am not sure how I could change the diode / variable resistor array without getting complicated... so can anyone thing of a slightly simpler approach?
Thank you.
Charlie.
I have looked at some 555 circuits, but am not sure how I could change the diode / variable resistor array without getting complicated... so can anyone thing of a slightly simpler approach?
Thank you.
Charlie.