Parameter:
Working Voltage: 2.5~5.25V
PCB Size: 22*28mm

Description:
The four spindles on the trackball have a tiny circular magnet in the end.
Each of these are paired with an SMD hall effect sensor, which are used to measure up, down, left and right movements of the trackball.
An SMD momentary switch is placed under the trackball to give you a select switch.
The BTN line will be pulled low when the switch is pressed.

4 color LEDs are also included in the Trackballer: red, blue, green and white.
These leds can be powered to light the clear trackball up any color you can imagine.

All features are broken out to a 0.1" pitch header. Regulated, 2.5-5.25VDC power must be provided to power the Hall sensors.
The trackball is attached with strong CA glue. Board comes as shown, with all components populated.

The hall-effect sensors and trackball combo are surprisingly sensitive.
A slight roll of the trackball creates multiple high/low transitions on the four axis pins, easily picked up by any microcontroller essentially.
A 360° rotation of the trackball, along a single axis, will result in about 9 high/low transitions.

Mechanical Drawing:

1. Tested by ICStation's Outstanding Partner Orionrobots:

Learn More Details in the Video:
(The language in the video is English)

2. Tested by ICStation's Outstanding Partner arduinoLab:

Learn More Details in the Video:
(The language in the video is Russian)

3. Tested by KaScada:

Learn More Details in the Video:
(The language in the video is Russian)