a custom usb hub for tinkers that can interface with smart home systems and provide data on power usage of a device.
2020-10-08 added CAD files for usb2.0 for those who may want to 3d print their own case
2020-08-27 version 2 is created, has 4 usb ports, mosfet is rated for 3 amps, external power supply notifies the MCU which can allow increased current alotment in programming. eg: max 500ma under usb input vs max 5A (shared by all ports) under power supply usage (current limited by dc-dc converter)
INA219 shunt is 0.1ohm 2W 1% toleance which allows for sense current up to 3.2Amps.
version 2 now includes 4 ports using usb2514 for hub control.
board allows for buttons to be placed and allows for software control of outputs -- newpixels give the ability to iniicate status of ports. 4 pin header spot has been added for the use of an I2C LCD.
current design allows for various arengments of a custom 3D printed case that allows the hub to me mounted in various ways
current board size is 100*75mm