The booths are home made. I believe that he uses the program Photobooth on a Mac to take the pictures, and needed an easy way for people to step into the booth and press one button to take a picture. For this reason, I needed to make a Staples® Easy Button™ emulate the spacebar character.
For this to be accomplished, I needed:
- a Staples® Easy Button™
- a programmable microcontroller; I used a Teensy because it is cheap ($16) and gets the job done.
- a USB cable
- a soldering iron
- a small Phillips Screwdriver
- a drill and/or knife
I cannot take credit for most of this project. My primary source was MAKEzine. Before starting this project, I watched that video twice, taking notes the second time.
The first thing that I did was take apart the Easy Button™ and remove everything that I didn't need. This included the metal bracket, the speaker, and all of the wires. Next I cut two holes. One from the battery compartment to where the speaker was, and also a slot in the battery compartment so the Teensy fits.
Next I soldered short wires, about 3" in length, from the button to the Teensy. I used ground ("GND") and "B2" as my pins on the Teensy.
Next I programmed the Teensy using this source code:
After programming the Teensy, it is time to test it. Your computer should recognize it as a plug-and-play USB Keyboard, and every time you press the button, it should print a space in a text editor, like you were using your Keyboard's spacebar.
If it all works fine, place the Teensy into the Easy Button™ like this:
and re-assemble the Easy Button™ until you get this far:
Try it again, and if it still works, finish assembling it.
The finished product looks like this:
and functions like this:
Congratualtions, you have now built an Easy Button™ that emulates whatever keystroke you want it to!
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