MIT’s ultrasound wristband tracks every finger movement and lets you control a robot hand in real time

MIT engineers created an ultrasound wristband that tracks 22 degrees of hand motion by reading tendon and muscle movement in the forearm, with no cameras or finger sensors required. In tests with eight volunteers, the device controlled a robotic hand in real time with just 120 milliseconds of latency. This could help bridge the gap in humanoid robotics, letting humans remotely perform delicate tasks in dangerous or inaccessible environments.