Difference between revisions of "PACmate20 Braille Display"
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Revision as of 01:48, 6 November 2009
PACmate 20 Braille Display
The PACmate 20 is a 20-cell braille display with two pushbuttons over each cell, and two 'whiz wheels' (mousewheel-type wheels) on either side of the braille area. It connects to a PC or other device via USB, and can be attached to the PACmate notetaker to integrate them into one device.
Notable Chips
| Chip | Chip Function | Use in Product |
|---|---|---|
| C8051F320 | Microcontroller w/ USB | Brains of the display, talks to the PC/device natively over USB. |
| LM358 | Op-amp | Don't know |
| TLC555 | Timer | Near large cap, may be part of the HV charge pump? |
