Create own Membrane Matrix Keypad (and hooking it up to the Arduino)

Step 3 Decision Time

The first step to putting your keypad together is deciding what you want it to look like/how many buttons do you want on it. For this instructable I will be using a 3X3 setup with the numbers from 1 to 9 on it. Once you have decided what it will look like draw it out and decide where you want all the wires to go. I want a lead off from my keypad so it will go around my door so see image 2 for what mine should look like. Make a mock up on your computer using whatever software you like (paint, photoshop, illustrator...) and proceed to the next step.