I have a project comming up where I want to use a vintage indicator, I intend to remove the incandescent bulb and fit an led, but what I also want to do is put a ldr in the lampholder with the led, then switch the led off and measure the ambient light level with the ldr, then switch the led on again.
How long approx is it going to take for the ldr to change resistance from being dazzled by the led to giving a realistic resistance dpending on the ambient light?
I'd like to see if it can be done without noticing a flicker.
How long approx is it going to take for the ldr to change resistance from being dazzled by the led to giving a realistic resistance dpending on the ambient light?
I'd like to see if it can be done without noticing a flicker.