Issue ESP 32 + isolator adafruit

Other Hardware 3rd Party Boards
3

isolator : Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB : ID 2107 : Adafruit Industries, Unique & fun DIY electronics and kits
Myoware : MyoWare 2.0 Muscle Sensor
Arduino 1.8.12

Without isolator, The software can detect the signals

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