Creating a custom PCB

The red traces connect the microSD card reader to the pins. The blue traces connect a screen mounted on the other side of the PCB to the pins

The red traces connect the microSD card reader to the pins. The blue traces connect a screen mounted on the other side of the PCB to the pins

The Xiao Hat without the Microcontroller Development Board attached

The Xiao Hat without the Microcontroller Development Board attached