Desired operation: When it gets dark enough the LM311 will energize the PIR sensor. When the PIR sensor detects motion, the LED's will light up.
Question:
1) Does this setup look right?
Problems with test circuit:
After bread boarding the LM311 and callibrating the "dark-sensitivity" I get LED1 to light when it gets dark and off when light, but a resistor/LED connected to the collector side of Q1(2N3904)...testing the transistor switch, results in oddness! It is dimly lit when the circuit should be de-energized and off when the circuit is energized. WT_.
??
Question:
1) Does this setup look right?
Problems with test circuit:
After bread boarding the LM311 and callibrating the "dark-sensitivity" I get LED1 to light when it gets dark and off when light, but a resistor/LED connected to the collector side of Q1(2N3904)...testing the transistor switch, results in oddness! It is dimly lit when the circuit should be de-energized and off when the circuit is energized. WT_.
??