I am trying to connect a normally closed gate sensor to a cheap 433 MHz remote so I can monitor the status of the gate at the front of our property remotely.
The remote has a normally open button that I plan to solder onto and connect to my sensor.
When the gate is shut the sensors circuit is closed. When the gate opens the sensors circuit opens until the gate is shut again.
The behaviour I am trying to achieve is... when the gate is opened, the remote button circuit should be closed for a short burst (about a second) to simulate the remote button being pressed, then released, regardless of whether the gate is left open or shut.
Once the gate closes and opens again, the behaviour repeats.
Any ideas how I could approach this problem?
I have done some research and found different methods of converting NC to NO behaviour and latching to momentary but I can't work out how to do both together!
Thanks in advance!