Hello, i have 2 SR 501 pir motion sensors, im looking for a circuit that could work like this:
both sensors have to be active(listening for motion) when one of them detects motion then it has to trigger my raspberry GPIO input but also it has to make the other sensor stop detecting motion.
About a week ago i asked in yahoo answers and one guy told me to use a bc547. He said;
"Use a BC 547 to supply power to the motion sensor A, by keeping V+ at collector and taking output from emitter to power the motion sensor A when a signal is sent to the base of the BC 547 each time motion sensor B is active."
I made a schematic of how i understood what he said. Is right here
Can someone help me to make the circuit i need or advice me about the circuit that i stated above? Thanks
both sensors have to be active(listening for motion) when one of them detects motion then it has to trigger my raspberry GPIO input but also it has to make the other sensor stop detecting motion.
About a week ago i asked in yahoo answers and one guy told me to use a bc547. He said;
"Use a BC 547 to supply power to the motion sensor A, by keeping V+ at collector and taking output from emitter to power the motion sensor A when a signal is sent to the base of the BC 547 each time motion sensor B is active."
I made a schematic of how i understood what he said. Is right here
Can someone help me to make the circuit i need or advice me about the circuit that i stated above? Thanks