As many of you know, to leave the Lab from the front room involved holding the green button to the left of the door. The reason why you had to hold it was because it's a momentary switch, and it would disconnect the magnet's trigger wires. It was a dumb switch, with no logic. Hence needing to hold the button.
Part of the reason why we kept it so long, is by being a dumb switch, it allowed safety in the event the security control software stopped responding. It would allow for a quick disconnect. The down side is that you would have to hold the button with your left hand, and push the door with your right. In the case where someone had limited control in one arm, this could create a problem. Also in the case where someone may not have too much upper body strength, and may need both arms to open the door. Not to mention cases where someone is carrying something out the door, and it was just plain annoying, and confusing to new guests.
The Lab became complacent, and didn't touch it, as it just worked, but last night I did just that. I converted the button to a digital control. When pressed, it signals the door system to unlock for 5 seconds in software. To still allow a way to physically disconnect the system in an emergency, I moved the disconnect button to the upper right of the door. I also changed it from a momentary disconnect to a switch. Keep in mind, switching the magnet to off will disable the door, until it's switched back on! This may prove to be useful in events, as you could easily turn off the door system until after the event, but be mindful to reengage it, before leaving the lab unintended. I plan on making a sensor for detecting when the magnet is disengaged, in the event where it is off too long, people could be alerted.
We should put up some signs indicating where the buttons are, and how they work, so people do not become confused in an emergency. I am posting this in a public forum, so non-members also know how to get out in an emergency.
I am including pictures of the new switch.