تعداد صفحه : 3Optical Rat Trap Trigger A simple circuit to make a better rat trap This circuit can be used to trigger a trap when a rat or other animal interrupts a beam of infrared light. You can use this to build your own trap, or to modify an existing one. I used it to modify a wire cage type of live rat trap. The advantages over a simple mechanical trigger are: much less prone to false triggering from vibration or from animals climbing on the outside of the trap less prone to ...