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Proximity - HC-SR04

'Ultrasonic Ping' Proximity example for any of the PING_PULSE_IN components (eg. HCSR04 or Parallax's Ultrasonic Ping). PingFirmata must be loaded onto Arduino-compatible boards to enable this component.

Breadboard for "Proximity - HC-SR04"


Fritzing diagram: docs/breadboard/proximity-hcsr04.fzz


Run this example from the command line with:

node eg/proximity-hcsr04.js
const { Board, Proximity } = require("johnny-five");
const board = new Board();

board.on("ready", () => {
  const proximity = new Proximity({
    controller: "HCSR04",
    pin: 7

  proximity.on("change", () => {
    const {centimeters, inches} = proximity;
    console.log("Proximity: ");
    console.log("  cm  : ", centimeters);
    console.log("  in  : ", inches);



Copyright (c) 2012-2014 Rick Waldron Licensed under the MIT license. Copyright (c) 2015-2019 The Johnny-Five Contributors Licensed under the MIT license.

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