Do not forget that the HydraBus is really an immensely capable Software, and combining it using an USB isolator boosts safety, reliability, and accuracy in many eventualities. 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 eliminate the P4/SHUNT in that circums