Microsoft Garage’s Sight Sign project lets people with disabilities sign with
  their eyes
From: Microsoft Power User - 09/24/2016

Sight Sign, a Microsoft Garage project, showcases the power of eye gaze
input, inking with Windows, and robotics. It allows people with disabilities
to do their own signature using their eye gaze. Basically, it is a Windows 10
app that can connect to a robot via USB and users can instruct the robot to
reproduce the signature writing. The special thing about this app is that it
is "eye gaze" enabled which means once the ink is saved, users can control
the robot with their eyes, mouse, keyboard, or other assistive technology.

When paired with the uArm, the robot will sign whatever has been inked into
the application.

Read the entire article at:
https://mspoweruser.com/microsoft-garages-sight-sign-project-lets-people-with-disabilities-to-sign-with-their-eyes

Links:
SighSign on GitHub
https://github.com/MSREnable/SightSign

uArm
https://www.ufactory.cc