Using Johnny-Five with Grove's Moisture component on the Intel Edison Arduino Breakout. This shield and component will work with any Arduino pin-out compatible hardware platform.

Run this example from the command line with:

node eg/grove-moisture-edison.js
var five = require("johnny-five");
var Edison = require("edison-io");
var board = new five.Board({
  io: new Edison()

board.on("ready", function() {

  // Plug the Moisture module into the
  // Grove Shield's A0 jack
  var moisture = new five.Sensor("A0");

  // Plug the Relay module into the
  // Grove Shield's D6 jack.
  var relay = new five.Relay(6);

  moisture.scale(0, 100).on("change", function() {
    // 0 - Dry
    // 50 - Wet
    if (this.value < 20) {
      if (!relay.isOn) {
        // Turn on the water pump!
    } else {;

Additional Notes

For this program, you'll need: Intel Edison Arduino Breakout Grove Base Shield v2 Grove - Moisture Module Grove - Relay Module


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