simple access code keypad without use of complicated electronic components

172

02:40:57

Simple  control system  from left to right  push 1 then 2  to access light .  Push # 3 is the wrong key and avoid access to light/door lock etc, for a couple of seconds..

published 9 years ago

Tugarwranking

9 years ago

What type of decoder is that?

nova6393

9 years ago

it s really a example of how to make a simple access code

nova6393

9 years ago

example by pressing push bottom 1 an 2 from left to right will turn on light but if press push # 3 will avoid light for a couples of seconds indicating wrong key

Karlberg

9 years ago

Nice and elegant solution that can be implemented in high voltage AC. Well done!

nova6393

9 years ago

Thank for comment. I will keep adding more component that show the all 9 digits to show how change the pass code

HennieRoets

6 years ago

Very well done. Thanks for sharing!

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