Only send RF signal once when not gate switched

Other Hardware General Electronics
1

Hi guys,
i am building a sensor that detects when a window has been opened for a security system. it uses an a3114 hall effect sensor to detect a magnet attached to a window. the signal from the hall sensor is inverted through a not gate, which then sends a message to the central control box using a ht12e encoder and 433mhz rf transmitter module. however, the hall sensor will keep sending a signal so the rf module will keep sending too many times. does anyone have any ideas on how i could have the rf module send once until reset?

Thanks in advance!

2

Stick an arduino in there and code it to send once

3

ok!

4

There are much simpler and cheaper ways to do it, but that would require a complete detailing of the parts involved and the present circuit. :roll_eyes:

5

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