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diy k169 |
PIC LED Flasher
This
is a versatile LED or filament bulb flashing kit. The user can add
almost any number of LEDs they want to from 1 up to about 160. It was
first published in the UK magazine Everyday Practical Electronics in
December, 2002. We have modified the design to use a ULN2803A chip
instead of all the transistor/resistor combinations which allows not
only for quicker construction but even more LEDs than the original
design.
Specifications:
- L: 2-1/8" W: 1-5/8" H: 1/2"
- Uses PIC 16F84A
- Flashing pattern is adjustable via dipswitches
- Requires 9 to 12 VDC power supply
(Need a Power Supply?)
CK1007.zip - zipped hex and
asm files.
See
CK1007.pdf for complete
details, including schematic and theory of operation. Requires
Adobe Acrobat Reader available at
www.adobe.com
for FREE!
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