accelerometer-mma7361.md

Accelerometer - MMA7361

Breadboard for "Accelerometer - MMA7361"

Fritzing diagram: docs/breadboard/accelerometer-mma7361.fzz

 

Run this example from the command line with:

node eg/accelerometer-mma7361.js

const { Accelerometer, Board } = require("johnny-five");
const board = new Board();

board.on("ready", () => {
  // --- Sleep Pin
  // The sleepPin is used to enable/disable the device and put it into sleep mode
  // You can also tie the sleep pin to high with a 10k resistor and omit
  // this option

  // --- Calibration of zero-G readings (zeroV)
  // This device also benefits from a calibration step.  You can autoCalibrate
  // by placing the device level on startup.  You can also read the calibrated
  // centers by reading the accelerometer.zeroV array after calibration.  Subsequent
  // initializations, you can omit the autoCalibrate and set the zeroV array
  // in the options instead

  const accelerometer = new Accelerometer({
    controller: "MMA7361",
    pins: ["A0", "A1", "A2"],
    sleepPin: 13,
    autoCalibrate: true
  });

  accelerometer.on("change", () => {
    const {acceleration, inclination, orientation, pitch, roll, x, y, z} = accelerometer;
    console.log("Accelerometer:");
    console.log("  x            : ", x);
    console.log("  y            : ", y);
    console.log("  z            : ", z);
    console.log("  pitch        : ", pitch);
    console.log("  roll         : ", roll);
    console.log("  acceleration : ", acceleration);
    console.log("  inclination  : ", inclination);
    console.log("  orientation  : ", orientation);
    console.log("--------------------------------------");
  });
});

 

License

Copyright (c) 2012-2014 Rick Waldron waldron.rick@gmail.com Licensed under the MIT license. Copyright (c) 2015-2023 The Johnny-Five Contributors Licensed under the MIT license.