HI,
I wish to build a simple circuit, using a PIR sensor (fed by 5v dc) to shut off DC current to the load.
The idea is that when somebody approaches a designated area, the PIR sensor will notice movement,
and the load will shut off.
After the automatic delay of the PIR sensor ends, the signal from it will drop back to zero, and the load will turn on again.
the load is 2A, 12V.
The components that I already own (and off course, most of the basic components in electronics kits):
1. IRLB8721 N-channel MOSFET (but I think that is used to do the opposite of what I want to do)
2. PIR sensor that is outputting 3.3v when triggered.
I do know to make it happen with an Arduino, but my question is whether it's possible to get the same result with a simple circuit without an Arduino ?
I will appreciate an example of the circuit.
Many thanks
Doron
I wish to build a simple circuit, using a PIR sensor (fed by 5v dc) to shut off DC current to the load.
The idea is that when somebody approaches a designated area, the PIR sensor will notice movement,
and the load will shut off.
After the automatic delay of the PIR sensor ends, the signal from it will drop back to zero, and the load will turn on again.
the load is 2A, 12V.
The components that I already own (and off course, most of the basic components in electronics kits):
1. IRLB8721 N-channel MOSFET (but I think that is used to do the opposite of what I want to do)
2. PIR sensor that is outputting 3.3v when triggered.
I do know to make it happen with an Arduino, but my question is whether it's possible to get the same result with a simple circuit without an Arduino ?
I will appreciate an example of the circuit.
Many thanks
Doron