PicoPD - USB-C PD 3.0 PPS Trigger with RP2040

Note: All shipments now include a straight header and USB breakout header. A additional accessory USB-C Splitter is recommeded to enable both PD and Serial Communication.

Introduction

Why can't we just utilize laying around USB-C wall plugs to prototype higher voltage devices? PicoPD will help you negotiate the voltage from your USB PD wall plug/power bank while still retaining the full functionality of RP2040.

Documentation: Hackaday.io - PicoPD

Source Code: PicoPD - GitHub

Example Project: Variable power supply with USB-C PPS - PicoPD

Specification:

Power

• Capable of USB PD3.0 PPS provides 3.3V-21V output in 20mV step
• Capable of USB PD2.0 Fixed Power of 5, 9, 12, 15, or 20 V at a maximum of 5A (100 W at 20 V)
• +20A capable P-MOS load switch tied to USB-C VBUS
• USB Type-C port (for power delivery and programming)
• USB-C current/voltage reading build-in on the circuit
• ESD protection on D+/D-/CC1/CC2 pins
• V1.2: 200mA LDO AP2204K-3.3 Low dropout

Microcontroller

• RP2040 flexible clock running up to 133 MHz
• 264kB on-chip SRAM
• 16MB on-board QSPI flash

LEDs

• Red - Power indicator
• Green - User controllable - GPIO 25

Reset button

Boot button

Programming: Through USB-C, USB header, or SWD