Halloween is coming up...

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We should get a deluge of questions about halloween projects any time soon.
One year I carved a coconut instead of a pumpkin. It was hard work but it didn't rot after a few days.

 

I made a robot costume for halloween one year. It had flashing LEDS and sirens/phaser/space war sounds coming out of it. If I can remember the chip used I will post it here.

The chip I used was a Texas Instruments SN76477.