Combination lock

257

04:29:51

1-5-4-3. From "#0"(top) to "#10"(down) as the 10 .N.O. push buttons. Red LED is wrong and blue LED is right. The switch on bottom is "enter". When the combination is right the relay clicks over to unlock.

published 3 years ago

592azy2circuitdude

3 years ago

Wow! Terrific job 👍. Your simple yet clever design is impressive. I also think it is a very strong lock without the combination to break into.

592azy2circuitdude

3 years ago

Yes, this is a very strong lock. If my calculations are correct, there are 10¹ + 10² + 10³ + 10⁴ + 10⁵ + 10⁶ + 10⁷ + 10⁸ + 10⁹ + 10¹⁰ ≈ 11.1 billion plus possible combinations you'd have to look through to find the correct one! 😅

Voltransistor

3 years ago

Thankyou

Voltransistor

3 years ago

I was trying to go for a high secure lock. That's alot. 😀

592azy2circuitdude

3 years ago

Yeah, that's assuming a code of maximum length of 10 for the 10 buttons. Even if you knew the code length was 4 and contained no repetition, it's still 10×9×8×7 = 5040 possible codes! Swell.

Voltransistor

3 years ago

That's lots of codes lol

simonlovescats

2 years ago

code?

Somnia

2 years ago

Really clever 1543 lock

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