Howdy, I actually like your undertaking and I do think I've competencies that can assist you. Your application is submitted. 1x GND 3V3 (P2 with two pins two.54mm) connector can be utilized to electricity externally the WCH CH569 MCU (it is recommended to get rid of the P4/SHUNT in that scenario it is not necessary as being the 3V3 LDO IC1 is pr