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. 2022 Apr 20;9(18):2105974. doi: 10.1002/advs.202105974

Figure 4.

Figure 4

Demonstrating of a human–machine interface application by MN‐PENGs. a) Schematic illustration of the human–machine interface operation. b) Voltage signals from wrist, biceps, elbow, and neck. c) Signals in the smart gesture recognition system.