After locking the door and leaving the keys inside one too many times, Elmer hit upon an entry strategy that involves no keys or codes to remember. He simply attached a timer to his door-bell, and a timer relay to the key switch terminals on the opener for the door on his attached garage. The doorbell operates normally, except when it is pushed continuously for 12-15 seconds, which automatically opens the garage door. Of course, if neighbors or friends find out, you're no longer secure!
For PDF links to Elmer Jones' instructions and drawings:
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