Project tutorial
Automatic Button Dispenser

Automatic Button Dispenser

Why spend seconds giving away promotional buttons at Maker Faires, when you can spend countless hours building a machine to do it for you?

  • 2,631 views
  • 6 comments
  • 18 respects

Components and supplies

Necessary tools and machines

3drag
3D Printer (generic)

Apps and online services

About this project

This machine uses a capacitive sensor and 3D-printed slide to drop promotional buttons when it senses a finger in the designated circle.

Mechanism is a simple escapement on a timer. The bottom servo drops a button, while the top holds most of it in place. The I/O and program setup is very simple, just a single capacitive sensor as an input, and two servos as outputs. I also added a capacitor on the sensor shield to help account for spikes due to servo motors.

Code

Comments

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