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Electronic Door Lock keypad with Arduino

StealthRT

Sep 4, 2010
138
Joined
Sep 4, 2010
Messages
138
Hey all i have a project i am interested in doing. It involves an Arduino and a Kwikset 909 Smartcode Electronic Deadbolt. I am looking to program the Arduino to mimic me pushing the keypad on the deadbolt face so that it will unlock using my cell phone, webpage, etc etc since the Arduino will be hooked up using the Ethernet Shield to a web server at the house.

The image of the deadbolt unit is this:
8921b2d5-3e56-4657-9679-3193376ee37f_300.jpg


Problem being is that i do not know how to go about using the arduino to "push" the buttons since they seem to have 2 digits per button. Also, how would i go about wiring them up so that i only have to use one ground wire for each button so it minimizes the wiring i'll have to use?

Is this possible? What would the wires to each button need to be? Positive or negative to trigger the button?
 
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