This is small (43 x 21 x 13 mm) trackball unit from a laptop. It has a standard MS mouse compatible serial interface, but at TTL level. It needs two external switches to act as left and right button. It can be connected directly to a microcontroller. A MAX232, MAX233 or the like is required to connect the trackball to the serial port of a computer.
This is a surplus product. It was obtained from a surplus store, from an inventory or from any other secondary source. You can expect this product to be in good working condition, but it can show signs of being handled, shipped, repackaged etc. The supply of a surplus article can suddenly run out, or the price can change. Get it while it is available.
Related products: |
IC-MC1489-DIP | MC1489 RS232 receiver (or equivalent) |
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IC-232-DIP | Maxim MAX232 or equivalent, + 4 * elco |