wozItDo: Tiny IQ puzzel, BIG challenge using atmaga

wozItDo Tiny IQ puzzel BIG challenge
Hardware components:
Atmel ATTiny85
× 1
09590 01
LED (generic)
× 3
Mfr 25fbf52 221r sml
Resistor 221 ohm
Or similar, I used 220 ohm
× 3
Omron b3f 1000 image 75px
SparkFun Pushbutton switch 12mm
or similar
× 1
Adafruit industries ada653 image 75px
Coin Cell Battery Holder
× 1
Adafruit industries ada654 image 75px
Coin Cell Battery CR2032
any 3v cell that fits is fine
× 1
Hand tools and fabrication machines:
09507 01
Soldering iron (generic)


wozItDo Tiny IQ puzzel BIG challenge

I think of this puzzle as the electronic equivalent of those annoying “IQ” puzzles (e.g. where you have to get two parts apart). A wozItDo has just one button and three LEDs and all you have to do is to work out what it does. Beware: it’s deceptively tricky and once you think you’ve cracked it, there’s still more.
So what’s with the name? We’ll about 30 years ago I made my first “computer”. A 6502 MPU with a keypad, some 7-segment LEDs and a handful of other bits. I was inordinately proud of it but when I showed it off to other people they seemed unimpressed and often asked “But what’s it do?” Nothing, really, but that’s not the point.

Schematic wozItDo Tiny IQ puzzelnBIG challenge Read more:  wozItDo: Tiny IQ puzzel, BIG challenge

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