/diy/ - Do It Yourself

>>1296334
>>1296468
I played around with the CD4093 IC on Falstad simulator for fun and managed to get the circuit working. I used four PNP transistors for driving the LED strings.
LDR+resistor voltage divider connected to a Schmitt trigger gate switches all output transistors to "off" state when the LDR resistance rises enough in the dark. If it works in practice, this way there would be no need for additional comparator IC.

I might breadboard the circuit and do some comparisons between this and the original one.