ROS Bridge Joystick

References

• We gamepad support
• gamepad.js

Javascript Test Page

The following script was placed in /home/eepp/public_html. It is derived from the w3 site listed above.

RosBridge Joystick Test Page

The significant addition is:

 function runAnimation()
 {
   //console.log('runAnimation called');
   window.requestAnimationFrame(runAnimation);
 
   var gamepads = navigator.getGamepads();
 
   for (var i = 0; i < gamepads.length; ++i)
   {
       var pad = gamepads[i];
       // console.log('id', pad.id);
       // console.log('index', pad.index);
       console.log('button 1', pad.buttons[0]);
       console.log('axes', pad.axes[0], pad.axes[1], pad.axes[2], pad.axes[3]);
   }
 }
 
 window.requestAnimationFrame(runAnimation);

Compatibility

Tested on these browsers

• Mozilla Firefox 44.0.2 on Ubuntu 14.04
• Chrome version 48.0.2564.116 on OS X
• NOT Safari version 9.9.3 on OS X

Hardware

• Logitech Dual Action gamepad G-UF13A

Run

In first terminal.

 roscore

In second terminal.

 rosrun phidgets motor_control_hc

In third terminal.

 roslaunch rosbridge_server rosbridge_websocket.launch

In browser

 localhost/~eepp/js_test.html

Gamepad Atributes

• Axes 0
  • x axes for Left joystick
    • Left action is 0.0 to -1.0
    • Right action is 0.0 to 1.0
• Axes 1
  • y axes for Left joystick
    • Up action is 0.0 to -1.0
    • Down action is 0.0 to 1.0