An USB isolator can help eliminate floor loops and cuts down electromagnetic interference (EMI) among the pc and the linked machine. 1x GND 3V3 (P2 with 2 pins two.54mm) connector can be used to electricity externally the WCH CH569 MCU (it is usually recommended to remove the P4/SHUNT in that https://wilhelmb627lct2.blogoxo.com/profile