I often times have difficulty getting to the buzzer of our building quick enough for FedEx and UPS, etc... or when I get visitors, they are sometimes inpatient and keep buzzing even though I'm still trying to get to the buzzer to let them in. I'd like to build a remote control to activate the "Door" (open door) button on my building's front lobby buzzer system. I imagine the "Listen" and "Talk" buttons are a bit more difficult, since you need to build audio and a microphone into a remote device.
Below are a bunch of pictures of the outside and inside of my buzzer system. This system is directly wired to the front door of our building. How can I integrate this with a remote control, a smart phone, or other remote device, so that I can press this button 30 feet away from the actual button?
White mode button instructions taken from Amazon review:
There is a small, white mode button on the relay circuit board. With some experimentation, I have found 4 modes so far: (1) Push the mode button on the relay board once and the remote button once and you get a mode with the relay "on" (or "off" at the normally closed terminal) ONLY DURING THE REMOTE BUTTON PUSH. (2) Push the mode button twice and the remote button once and you get a mode that is "armed". When you push the remote the relay turns on (or off) and cannot be reset with the remote (alarm?). (3) Push the mode button 3 times and the remote button once and you get the usual latched on/off operation. Each remote button push toggles the relay state. (4) Push the mode button 4 times and the remote button once and you get an on (or off) state that lasts about 4 seconds and then goes off. (Use?) I couldn't find any more modes. If the relay board power is interrupted and turned back on, it reverts to mode(1).