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Winky Lights Projects
| Name: | Winky20 Board |
| CPU: | PIC12C509 |
| Status: | Completed and Tested. |
| Summary: | The Winky Lights Project uses differential coupled LEDs to maximize
the number of LEDs per I/O lines. |
| Specifications | |
| Dimensions: | 0.8" x 1.0" |
| Power: | 3 to 5 VDC |
| Schematics | Multi20wink_sch |
| User's Manual | InformationSheet |
Description
The Winky Lights Project was a series of boards using differentially coupled
LEDs to maximize the number of LEDs per I/O lines.
The idea was to provide inexpensive LED winky light driver boards for toys and
other consumer products.
This model used 5 I/O lines to drive 20 LEDs. It is also programmable. Shorting an I/O pin to ground during power up will select one of 5 other sequences instead of the default random pattern.
Additionally, closing the contacts during power up will increase the delay between pattern repeats.