Blackberry Trackballer Breakout

Blackberry Trackballer Breakout
$16.95, 10/$152.60, 50/$678.00

Product Description:

This is a breakout board for the Blackberry Trackball. The four spindles on the trackball have a tiny circular magnet 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.

Also included on the Trackballer are 4 LEDs: red, blue, green and white. These 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. A 360 rotation of the trackball, along a single axis, will result in about 9 high/low transitions.


Center select button
360degree direction
Hall effect sensors measure up/down/left/right movements of trackball
Red, blue, green, white LEDs to light up the trackball
All pins broken out to 0.1" pitch header




FT232RL Breakout Schematic
Eagle Files
Hall sensor datasheet
Blackberry Teardown
Inside the Blackberry (BOM)