Ideas

147

01:06:48

Maybe.. I can use this to an password system!

published 10 years ago

Nikolay_S

10 years ago

This is a bad idea. Dwight count the number of combinations, using the formulas of combinatorics. 8! = 40320. picks for five minutes.

hurz

10 years ago

But the order seems to be not important, so the number of combinations is only 2^8=256.

hjroh0315

10 years ago

But if we can lock the electricity?And we can expand it!

hjroh0315

10 years ago

Yes..Its a bigger combination lock tho

hjroh0315

10 years ago

I'm thinking about making a SRam

hjroh0315

10 years ago

Ok updated to 10 nodes and now 10! = 3628800 passwords

hjroh0315

10 years ago

@hurz No, it has to be the same.

hurz

10 years ago

"Same"? What i can see is, it doesn't matter from were i start. Left button or right. Start from left i have to flip a coin ten times to guess the passcode. This makes 2^10 = 1024 combinations.

hjroh0315

10 years ago

Oh it is?

hurz

10 years ago

Probably its easier to understand if you think this circuit with just two switches. 2^2 are 4 combinations. Or three, to not get in trouble with (2!)

hjroh0315

10 years ago

Okay. then what about counter locks using counters?(you know, using with 8 segment leds)that would have 16 combinations in one counter so 8 counters-combi lock's combinations will be 8^16=2.8147498e+14.Am i right?

hurz

10 years ago

8 counters each 4bit are in total 32bit. 2^32=4294967296

hjroh0315

10 years ago

But much compact and better. right?

hjroh0315

10 years ago

So we calculate them with bits?

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.