madmikejt12
New Member
hi, i have done a circuit with a 9v battery, a buzzer, an LDR and 2 transistors, when there is no light i want the buzzer to sound, i am using a lazer on one wall and an LDR on another and when the beam is broken, i want the buzzer to sound can you see anything wrong with this circuit?
Thanks, Mike
Thanks, Mike