Basic codelock

205

03:48:00

Source : 
http://www.talkingelectronics.com/projects/200TrCcts/200TrCcts.html#20a
From page : 
Here is a simple CODE PAD to add to your alarm. It consists of 10 buttons and they must be pressed in a certain order for the output to change. You can see from the circuit how the buttons are pressed and two buttons must be pressed at the same time, the two other buttons at the same time,  to gain entry. The operation of this type of pad is very unusual as anyone pressing the buttons by incrementing numbers will not be able to produce the code

published 11 years ago

afinchum

11 years ago

Which switches would be assigned to what numbers, and what would be the combo for this one?

rbrtkurtz

11 years ago

If you look at the circuit, it's pretty easy to tell which switches/buttons need to be closed to complete the circuit.

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