1. School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA 30332 USA
2. IEN Center for Human‐Centric Interfaces and Engineering Institute for Electronics and Nanotechnology Georgia Institute of Technology Atlanta GA 30332 USA
3. Wallace H. Coulter Department of Biomedical Engineering Georgia Tech and Emory University School of Medicine Atlanta GA 30332 USA
4. School of Industrial Design Georgia Institute of Technology Atlanta GA 30332 USA
5. George W. Woodruff School of Mechanical Engineering Georgia Institute of Technology Atlanta GA 30332 USA
6. School of Electrical and Electronic Engineering Yonsei University Seoul 03722 Republic of Korea
7. Parker H. Petit Institute for Bioengineering and Biosciences Institute for Materials Neural Engineering Center Institute for Robotics and Intelligent Machines Georgia Institute of Technology Atlanta GA 30332 USA