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Im trying to use two Pi's as a bridge to trigger a garage doors button from an automation system that uses its own GPIO. My thoughts where give them each a static address and script one to ssh into the other and than have a script that says triggers sets pin 1 high when pin 1 goes low on the other. Is there a better way or possibly a similar project that I could modify?

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My pigpio Python module supports this mode of operation.

You have the pigpio daemon running on each Pi. You have a control script on the master Pi which connects to its own Pi and the remote Pi. This allows you to manipulate both sets of GPIO from the one script.

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If you are looking for something extremely simple, consider using netcat (this is similar to the ssh approach, but likely a little faster). netcat is including in Raspbian by default.

On the "server" RasPi (the one that will be setting a GPIO, assuming GPIO4):

echo 4 > /sys/class/gpio/export 
echo out > /sys/class/gpio/gpio
nc -kl 9999 > /sys/class/gpio/gpio4/value

On the client, assuming you want to set the GPIO high:

nc 192.168.1.16 9999 <<< 1

and that the IP address of the server is as shown.

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