Hello, I really like your task and I think I have competencies to assist you. Your software continues to be submitted. 1x GND 3V3 (P2 with two pins 2.54mm) connector can be employed to energy externally the WCH CH569 MCU (it is suggested to eliminate the P4/SHUNT in that situation https://gunnerbxtpm.bloggerbags.com/38436351/not-known-factual-statements-about-hydrabus