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You could but it would eat up batteries pretty fast. Here the spring keeps the door lock, and when it gets power it charges the electromagnet that pulls back the pin to unlock. If you invert it you would have to flip that some how where the power is always on pushing the pen to keep it locked. What i would do is have a way to supply backup power to the unit. For example i have a electronic lock that i use on a door in the house. The batteries are kept inside the locked area, so if the power goes out there isnt a way to access it from the outside. So what the company did was put a connector hidden on the outside, so if the power went out i just had to connect a battery to the front to power it long enough to open the door.
Very Simple Arduino Electric Lock
Great tutorial! Do you think I can make it on the inverse, in terms of making the arduino open the door when power is out?the thing is, I want to install sth similar, running on batteries and with a WiFi shield to send the signal ("please, open the lock") via Internet. But I don't want the door to keep locked once the battery runs out. I prefer the door opening in this case (yes, the whole thing would be useless by then, but you can change the batteries). So I thought that maybe, if with the 12v I could make the lock keep closed instead of opening, then I could bypass the problem of not being able to ever open the door again because I've run out of batteries.I still have to do my research and see if I can definately power this whole system with a handful of AA batteries.Thank you
Powermat your car
Thanks. Its just a simple magnetic door lock.
If its a simple electronic one that just needs a current of some kind to open then it should work fine.
Will this work if I use a Single Door Magnetic Lock?
If I wanted to use multiple barcode ( s ) to open one lock could I
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