Low-cost USB-PD Sink for Breadboard (and More) hackaday.io
In where bench power supplies are not available, you would want a portable and convenient alternative, and USB-PD charger is an ideal choice. However, most PD sink designs are either too simple to provide convenient operation, or a bit complicated due to incorporating MCUs. This project aims to build a PD sink suitable for experiments, accomplishing one-click voltage selection with only two 74xx ICs, and is therefore cheap and programming-free.