Password access with arduino

~~ The complete kit for this tutorial is now for sale at   Get one! ~~ This instructable will show you how to make a pass-code lock system using the Arduino Mega board. Whenyou type the right code, an LED lights up an the servo moves to open a lock. What you will need: --->one Arduino Mega (the arduino uno or duemilianove does not have enough digital pins for this project) --->one L ...

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