MakerDisplay4 switch position, connectors, and pinouts

Customer:

I’ve checked the documentation link, but there’s no image or diagram of the PCB explaining the connectors and what the switch does. What position should the switch be in and why? What does it do? What are all of the connectors and their pinouts? Do you have a Wiki? We want to understand this board and its full capabilities.

Originally submitted via email support on 16 July 2019. Migrated to the forum for community visibility.

Soldered Support:

The switch is the power switch on the line from the battery to the rest of the system. Upper position turns on the device, while the lower position turns it off. The bigger connector is the JST battery connector with standard pinout. The small connector is the easyC connector, which is used to connect easyC devices. Learn more here: Soldered: Open-Source Electronics, Boards, Sensors & Modules – Soldered Electronics