Quote:
Originally Posted by Fred
Magnetometer is for magnetic anomaly 
I dont understand either, i am making a comment about your circuit.
Of course with a LDR or photo transistor you could detect changes in voltage input, but that would be a very complex way to make a trigger.
Regards,
Fred. |
Maybe is complex or not (really simple phototransistor/photodiode-555 circuit), but if we don't ear as a beep, we are not happy!
