Demo: Adafruit 2-Axis Thumb Joystick

The Analog 2-axis Thumb Joystick allows you to easily mount a PSP/Xbox-like thumb joystick to your project. Using analog pins, the BeagleBone will read and determine both the X and Y axis. The joystick also includes an extra digital input that will let you read the switch.

The console will output both the x-axis and y-axis with readings from 0-100, with (50,50) being the center location.

Example run restore

var b = require('bonescript');
var pos = {};

b.analogRead('P9_36', onX);

function onX(x) {
    pos.x = parseFloat(x.value * 100).toFixed(2);
    b.analogRead('P9_38', onY);
}

function onY(x) {
	pos.y = parseFloat(x.value * 100).toFixed(2);
	console.log(JSON.stringify(pos));
}

Build and execute instructions

• Connect the "VCC" pin from the joystick to P9_32 of the BeagleBone.
• Connect the "VER" pin from the joystick to P9_38 of the BeagleBone.
• Connect the "HOR" pin from the joystick to P9_36 of the BeagleBone.
• Connect the "SEL" pin from the joystick to P9_42 of the BeagleBone.
• Connect the "GND" pin from the joystick to P9_34 of the BeagleBone.
• Click "Run" on the code and it will output both the x and y axis, with 50,50 being the center.

See also

Related functions

• require
• analogRead

Last updated by juan_cortez on Fri Aug 16 2013 11:13:30 GMT-0500 (CDT).