• By CPlatt
  • Category: Electronics
  • Difficulty: Difficult

M33_EFF_FigA2
Almost anyone can learn to pick a typical door lock. The most common method is to jiggle the tumblers by inserting a tool known as a “rake,” while applying turning force with a tension wrench. When the tumblers are aligned, the cylinder rotates and you can walk right in.

MAKE Volume 33 features our special Software for Makers section covering apps for circuit board design, 3D design and printing, microcontrollers, and programming for kids. Also, meet our new Arduino-powered Rovera robot and get started with Raspberry Pi. As usual, you’ll also find fascinating makers inside, like the maniacs on our cover, the hackers behind the popular Power Racing Series events at Maker Faire.

Try your hand at 22 great DIY projects, like the Optical Tremolo guitar effects box, "Panjolele" cake-pan ukelele, Wii Nunchuk Mouse, CNC joinery tricks, treat-dispensing cat scratching post, laser-cut flexing wooden books, sake brewing, growing incredibly hot “ghost chili” peppers, and much more.

On newsstands now, by subscription, or available in the Maker Shed

Buy now!

One Response to Electronics Fun and Fundamentals: Key-Card Door Lock

  1. magneeto on said:

    Can you please repost your original circuit diagrams for this project or email them to me? I would love to make this project

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