The Simple Switch Tester is a cost effective, open source assistive technology for testing assistive switches. When an assistive switch is connected to the tester via the 3.5 mm jack and activated, a light on the tester will illuminate indicating that the switch is functioning correctly. The tester is powered by two AAA batteries. A test button on the side of the tester allows the batteries to be tested to confirm the tester is working correctly before testing a switch.

The Simple Switch Tester is comprised of off-the-shelf electronics and 3D printed parts. The overall cost of materials is about $8 (plus $8 for component shipping).

The Bill of Materials lists all of the parts and components required to build the Simple Switch Tester. The electronic components may be available locally, but will probably need to be ordered online. For convenience, you can use this Digikey cart: https://www.digikey.ca/short/w37qmwmv

Print the components for the switch tester case and choose an option for the case.

All of the files and individual print files can be in the /Build_Files/3D_Printing_Files folder.

Reference the assembly guide for the tools and steps required to build each portion. There is also a build video available at the following link: https://www.youtube.com/watch?v=CHm8Z5UD4Sw

• CAD Files

• 3D Printing Files
• V0.1 3MF

Everything needed or used to design, make, test, or prepare the Simple Switch Tester is licensed under the CERN 2.0 Permissive license https://ohwr.org/project/cernohl/wikis/Documents/CERN-OHL-version-2 (CERN-OHL-P) .

Accompanying material such as instruction manuals, videos, and other copyrightable works that are useful but not necessary to design, make, test, or prepare the Simple Switch Tester are published under a Creative Commons Attribution-ShareAlike 4.0 license https://creativecommons.org/licenses/by-sa/4.0/ (CC BY-SA 4.0)

Makers Making Change is an initiative of Neil Squire, a Canadian non-profit that helps people with disabilities.

We are committed to creating a network of volunteer makers who support people with disabilities in their communities through 3D printing assistive devices. Check out our library of free, open-source assistive technologies with parts and build instructions.

• www.MakersMakingChange.com
• GitHub
• Thingiverse
• Twitter: @makermakechange
• Instagram: @makersmakingchange

For technical questions, to get involved, or share your experience we encourage you to visit the MMC Project Page, MMC Forum, or contact [email protected]