Fetching contributors…
Cannot retrieve contributors at this time
75 lines (38 sloc) 1.07 KB

Expander - PCF8574

Using an PCF8574 Expander as a Virtual Board (WaveShare 8 Pin Digital IO)

Breadboard for "Expander - PCF8574"


Fritzing diagram: docs/breadboard/expander-PCF8574.fzz


Run this example from the command line with:

node eg/expander-PCF8574.js
var five = require("johnny-five");
var board = new five.Board();

board.on("ready", function() {
  var virtual = new five.Board.Virtual(
    new five.Expander("PCF8574")

  var leds = new five.Leds(
    Array.from({ length: 8 }, function(_, i) {
      return new five.Led({ pin: i, board: virtual });


    leds: leds



Copyright (c) 2012-2014 Rick Waldron Licensed under the MIT license. Copyright (c) 2015-2018 The Johnny-Five Contributors Licensed under the MIT license.