ASelis
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Just started doing hobbyist projects in the last month--building simple circuits--and had a question about this design for an analog light meter:
As light / voltage flowing through the photoresistor increases, it lights LED 1, then 2...
Why does the circuit connect to ground at two points, and how does R3 set a threshold point for successive LEDs to light?
I know this is a simple question--Thanks in advance for replies.
A
As light / voltage flowing through the photoresistor increases, it lights LED 1, then 2...
Why does the circuit connect to ground at two points, and how does R3 set a threshold point for successive LEDs to light?
I know this is a simple question--Thanks in advance for replies.
A