Breadboard for "Keypad - 3x4 I2C Nano Backpack"

keypad-3X4_I2C_NANO_BACKPACK.png

Fritzing diagram: keypad-3X4_I2C_NANO_BACKPACK.fzz

 

Run this example from the command line with:

node eg/keypad-3X4_I2C_NANO_BACKPACK.js
var argv = require("minimist")(process.argv.slice(2), {
  default: {
    show: 1
  }
});
var five = require("johnny-five");
var board = new five.Board();

board.on("ready", function() {
  // 3X4_I2C_NANO_BACKPACK
  var keypad;

  if (argv.show === 1) {
    keypad = new five.Keypad({
      controller: "3X4_I2C_NANO_BACKPACK"
    });
  }

  if (argv.show === 2) {
    keypad = new five.Keypad({
      controller: "3X4_I2C_NANO_BACKPACK",
      keys: [
        ["!", "@", "#"],
        ["$", "%", "^"],
        ["&", "-", "+"],
        ["_", "=", ":"]
      ]
    });
  }

  if (argv.show === 3) {
    keypad = new five.Keypad({
      controller: "3X4_I2C_NANO_BACKPACK",
      keys: ["!", "@", "#", "$", "%", "^", "&", "-", "+", "_", "=", ":"]
    });
  }

  ["change", "press", "hold", "release"].forEach(function(eventType) {
    keypad.on(eventType, function(event) {
      console.log("Event: %s, Target: %s", eventType, event.which);
    });
  });
});

Illustrations / Photos

Nano soldering assembly 1

keypad-i2c-backpack-1.jpg

Nano soldering assembly 2

keypad-i2c-backpack-2.jpg

Learn More

 

Component Classes in this example:

Hi! The Johnny-Five community is building new projects every day. We made this newsletter to tell you about what's new, what's good, and what's next for Open Source robotics. Join us in exploring what we can make together.

Fork me on GitHub