A USB to Serial converter board based on the CH330N IC which comes in a tiny SOP-8 package. The board features a USB type C port and also has TX and RX indication LEDs to know whether there is any serial data being transmitted or received. However the board only works with 5V logic.
Final board pics
This is an OSH certified board 🙂
Github repo: https://github.com/Chromico/USB-TO-UART-BRIDGE-CH330N