2 layers55 × 54 mm

USB CDC
addy123d/USB-CDC
A bare-metal thermal printer controller that receives data over USB-CDC, processes it using a custom serial protocol (TSIP), and prints text and images on an RP203 thermal printer.
35 parts
Open-source boards designed in KiCad by addy123d on GitHub, from 1 repository. A board’s address here is its repository’s there.

addy123d/USB-CDC
A bare-metal thermal printer controller that receives data over USB-CDC, processes it using a custom serial protocol (TSIP), and prints text and images on an RP203 thermal printer.