MobiLimb: Augmenting Mobile Devices with a Robotic Limb
summary
A 5-DOF serial manipulator plugs to a phone and runs from an Arduino Leonardo over micro-USB, driven by five chained servos and a Unity API; the prototype costs about $20–$25 total cost. It demonstrates three concrete uses: as a tool (one-to-one rotation mapping to control 3D objects), as a partner (expressive tail/skin actuations for emotional cues), and as a medium (wrist strokes or a pen tip to write remotely). It works but shows low-torque motors and elicits uncanny user reactions.
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