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PBrick KiCAD Project - A USB-C PD powered, Bluetooh controlled motor driver and IO

12 Oct, 2022

About

PBrick is a personal project that arose from a desire to learn Kicad and develop embedded software, as well as to learn USB-C PD and create full end-to-end software solutions. I currently use PBrick to power a few custom toys as well as other items that require a motor driver for myself and my children.

While I wouldn't call this "battle-tested" hardware and software, I have successfully manufactured and used it for over a year without incident or problem.

This board has been in various stages of development since 2018, and the semiconductor supply chain has had a significant impact.

Features

Dual motor driver for powering two separate motors independently, up to 20V5A (100W of power), and 12V3A per rail
Dual motor driver ouputs on rear of board with input power output rails + GND
USB-C Power Delivery (PD) input
Configurable JST-2 pin connector for either PD output when using USB-C PD, or direct power input with backfeed protection (You may power the board either by USB-PD or by this PIN)
i2c output on rear of board for running and powering additional accessories
Programmable LED Status light
Single button with double tap to reset functionality available in the Kaidyth Bootloader
Accelerometer for rollover detection
4 Layer board with dedicated GND layer

Board Pictures

PBrick KiCAD Project - A USB-C PD powered, Bluetooh controlled motor driver and IO

Schematic and Software

PBrick KiCAD schematic and software can be download via the link below:

PBrick KiCAD Project

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