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"SECURE" KEYPAD
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30.11.2024 klo 12.41
1 muutos ( näytä )
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Gaeel
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"SECURE" KEYPAD

Kuvaus
A keypad code verification module for a secure facility.
The daily passcode is set using a set of dials. Valid access codes will pulse the authorisation pin, and incorrect codes will pulse an alert pin, allowing you to log fraudulent access attempts.

It's very secure!

Please install one of these on every door to an important location in your facility.

You won't regret it.

You'll never regret installing unaudited security systems in your facility.

Chances of a backdoor? None! Or at least next to none... Right?
8 kommenttia
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Cocoa 2.8. klo 20.08 
I didn't except that there would be a new popular puzzle in 2025
Solved in 5 / 143 / 14 .
Sev 23.3. klo 17.09 
Very fun puzzle! I did it in 5/217/14 at first, but then I went back and realized an inefficiency I could remove and got it down to 5/161/14 .
语海 5.1. klo 7.31 
非常有意思的谜题，让我对 gen 命令有了更深刻的理解，感谢！
5/175/14
Verdammte Heinz 16.12.2024 klo 15.33 
Nice puzzle, first did it with 2 but now also have the 1 chip solution. Solved in 5 / 179 / 14
zwippie 9.12.2024 klo 7.54 
That was fun! Inspired by s7eph4n my solution is now a 5 / 161 /14 .
Firazul 4.12.2024 klo 10.38 
I was like, "pffft. Child's play." Then i saw the story caveat. Ok, not quite as simple as it first appeared. I like that I ended up using an instruction that I've largely found useless.
First attempt: 8/206/18
Will revisit. Thanks for the puzzle!
s7eph4n 2.12.2024 klo 12.01 
After my first working solution, that performed ok-ish 10/368/27 , I realized that I don't need to check every digit on it's own . So I rebuild my solution and can now confirm, that a single MC6000 solution is possible.

Solved in 5/199/14
Nice puzzle, thanks.
Gaeel  [tekijä] 1.12.2024 klo 3.32 
My first spec, this was fun to make!
I wanted to find a nice balance between packaging and coding.
I landed on this layout that has enough room to fit quite a few components, but tight enough to force you to have to be a little creative with placement and wiring.
The four XBus inputs and two simple outputs are begging to be connected to a single MC6000, and I'm still looking for a way to solve it like that, but I don't know it it's possible.

I'm fairly happy with my current solution, it's simple enough that anyone who's made it to the custom specifications objective should be able to get something similar.

My solution stats:
Cost: ¥8
Power: 342
Lines of code: 23
Components: 1x MC6000, 1x MC4000