Congratulations on getting this far! This is the final section where we will wire everything up and see your OSES come to life. For these steps it helps a lot to have some basic wiring tools, like wire strippers, tweezers and a soldering stand.
Prep the terminals on your pi:
Cut 4 wires for power:
Wire power to your pi.
2 wires for usb data. Cut both at 52mm
Clean up all 3 usb ports we removed and prepare them for wiring.
Wire your pi to power on the BMS and connect to the USB input as seen in this wiring diagram.
Plug the HDMI connector before mounting your pi. Then screw your pi down with 3 M2 screws.