Maker David Johnson-Davies has designed a compact board for anyone looking to turn a USB Power Delivery (PD)-capable power supply into a user-selectable fixed voltage for their breadboard projects and more: the USB-C Power Delivery Dongle.

“This is a small board that will deliver one of six fixed voltages from a USB-C power adapter that supports [USB] Power Delivery,” Johnson-Davies explains of the gadget. “It’s compact enough that you can put it in line with a USB-C cable, encapsulated in a small case or heatshrink tubing, and you can select the voltage by soldering a wire link or fitting a jumper in one of six positions. A green LED indicates when the output is active.”