User manual

www.sainsmart.com

Chapter23 Keypad

What’s keypad?

Feature.

8P DuPont head, pitch 2.54mm, can be inserted in the Pin connection circuit;

Peel off the white sticker on the back of the keyboard can be securely affixed to the surface of the

chassis

Experiment component

 Relay : 1

 LED: 2

 UNO R3: 1

 Keypad : 1

 Breadboard & Jumper wires

 USB cable: 1

Wiring

Wiring up the parts is easier than it might seam. Note that D0 and D1 are used for serial

programing. D13 has a resister wired into it so not good for the relay signaling. Analog pins with

LEDs is a bit of a hack for some more I/O.