microprocessor
microprocessor
(OP)
I kindly need assistance in connecting a motion detector + gas detector + smoke detector to a microprocessor that will call my phone in case any of the sensors beep.
Thanks for the help.
Thanks for the help.





RE: microprocessor
RE: microprocessor
TTFN
RE: microprocessor
Thanks
RE: microprocessor
TTFN
RE: microprocessor
If you've got the sensors and know the outputs, connect them to comparators. Each comparator has a reference voltage that guarantee a "ONE" output if a sensor feels something. Then "OR" the three signal and give it to a port of a microprocessor that has been initialized as an Input. Your program inside the micro is a 3-line loop that checks if the pin is "1" or not. If not goes back to the loop, if it is "1" it calls a subroutine that calls your phone. There are ready subroutines out there to call a telephone number using a computer or microprocessor system.
Cheers
You can live in your car, but you can't drive your House!
RE: microprocessor
This type of arrangement is a little more robust against certain types of faults as well as providing for a certain amount of tamper resistance.
TTFN