Introduction: D4E1 - Returning Light Switch Controller for Motivational Rehabilitation Project

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About: Designer at D4E1 - Design student at Howest

This light switch is part of the bigger project of motivational rehabilitation using MaKey MaKey.


It is a simple returning light switch for outside connected with cables to a MaKey MaKey for use in hospitals and rehabilitation centers. For this project, the MaKey Makey is connected to a raspberry Pi which functions as the main control center. The choice for a waterproof/outside light switch was made for steady placement and protecting the connection but also to ensure the whole controller can be safely disinfected when necessary.

Supplies

  • IP66 1-way light switch
  • Electric wires
  • 2 crocodile clamps, preferably different colors (here black and red)
  • hook-and-loop cable tie

Step 1: Open the Light Switch Housing

Open it up as instructed for that specific light switch

Step 2: Put the Wires Through the Case

Most IP66 lightswitches come with 2 or 4 indications for where to make a hole. Choose one that works and guide both cables through. (you can also choose to open up 2 sides, as shown in the picture, but tests showed 1 is preferable)

When both cable ends are inside the case, strip the wire ends and (solder them smooth, then) connect them with the screws.

Step 3: Finishing Up

  • Close the casing again.
  • If the wires didn't come with alligator clips already attached, solder and clamp them on.
  • Attach a hook-and-loop cable tie to keep the cable nice and tidy.


It should now be finished, test it out by connecting one of the cables to the ground of the MaKey MaKey and connecting to other to the keystroke you would like your button to represent.

Have fun making and never forget to be curious!

Check out the other parts of the project here.