Hello fellow Arduino's, This is a new Instructable using the 3x4 keypad linked to a Servo, which is controlled by a password. And is also connected with 2 Leds, one Red and one Green, for Open and Close.
I will only include how You make the Technical parts(Arduino). The making of the box is excluded (just be creative making a box).
Here You can find the wiring and Codes.
Solder the Keypad 3x4; Make sure you Solder Your Keypad correctly.
And wire accordingly; see image !
Download the Code, copy and paste it, and Enjoy !
can you explain why you used resistors on the keypad pins 2,3,4 and not on the others?