Hunting rodentsIf on occasion saw the light of emergency, are already familiar with the diagram. This is basically the same, with minor differences, such as the PHOTOCELL is connected to the negative side of the source, it adds a light bulb (lamp) and instead of turning on a light bulb, activates a solenoid.
This solenoid shares to be interrupted the beam of light bulb. In this case will be grill a box and placed these 2 components facing each other so that when the rodent between, interrupting the beam of light, thus closing the entrance. To attach the solenoid operated and that the entrance door of the box.
You can use a battery or assembling a source with 1 processor with 110 or 220 primary, secondary, 6 or 12 volts, 2 and 1 diodes 1N4001 capacitor 1000 µF. 25 volts.
List of components
C1: 22 µF. electrolytic
R1 to R4: 10K
VR1: 50 K
BL1: Lamp for 6 or 12 volts RL1: Relay, coil-over should consume no more than 100 mA. and be consistent with the voltage.
SL1: Solenoid for 6 or 12 volts.
pcb expensive components print