Overview
Mobile device and computer users with motor disabilities may have difficulty direct selecting and activating their devices. Switch access allows these users to access the operating system and software using either a single or multiple switches. This build uses Bill Seiver's BLE HID (Human Interface Device) extension for the Microbit V2 to create a low-cost and wireless double switch for iOS switch access. An added benefit to this build is its no solder and block-based coding platform allowing making this a novice-friendly project. This build uses commonly available materials such as conductive tape/ foil, coroplast, and brads using the principles behind the business card switch design.
Multiple variations using the same concepts are also presented with commercially available switches and interface designs that are also solderless. These include:
Along with switch access, the BLE HID extension also supports mouse emulation, media control, and some gamepad control. Visit the extension's Github repository to learn more!
Links
To learn how to build your own check out the build event recording and other resources: