Upgraded the Sunlu PCB and Firmware.
I had to redesign the cover on the orginal design, and cut a hole for the inductor and aliminum capacitor which didn't fit in the original enclosure. I used the wrong JST connectors, so I had to cut a hole for those as well, but that can be avoided with horizontal connectors instead of vertical. I provided all the design files and Code. The PCB, Schematic, and cover were designed inside Fusion 360. I used a generic OLED display, which I got off of amazon, link below. Most other components can be found in the BOD.csv.
UCTRONICS 0.96 Inch OLED Module... https://www.amazon.com/dp/B072Q2X2LL?ref=ppx_pop_mob_ap_share