Halloween Lights

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Simple pic16 program (using a pic18f4550) to intermittently blink LEDs for "spooky" eyes.

Hardware

• Microchip PIC 18f4550
• MCLR tied to VDD
• Cardboard tubes (ie, toilet paper)
• Red LEDs

Building

• make
• make flash

Assembly Instructions

• Cut eye holes in the cardboard tubes
• Solder LED to sufficiently long wires to be able to spread out your eyes a bit
• Place LED in tube such that all light is exposed through the eye holes. It may be best to simply cut a hole directly behind the eye sockets and push the LED in there.
• Seal up the ends with duct tape
• Connect LED cathode to common ground, connect anode to designated PIC pin. A small 1k ohm resistor may be desirable but is not necessary.