Digital load

This is a digital load circuit, project is WIP. Intended features are:

• USB type-C connector with USB-2.0 supply (5V 500mA)
• Oled display to show current setting (and maybe other stuff)
• Encoder wheel with push-button to change current value
• Ability to connect several circuit (only one with screen, encoder, and usb supply) which will communicate through I2C and share the load (to reach higher current load)
• Several sense resistors to increase dynamic range.
• Maximum current and voltage are to be determined, current will probably be on the order of 1 to 5 amps max, ~1uA min
• USB serial interface, maybe to control from computer and read measured current points, this would allow to specify curve for the load for instance, if there's a use for it.

Screenshots