PowerPD - ESP32 USB-C PD/PPS Programmable Power Supply

• Introduction
• Features
• Specifications
• How It Works
• Hardware Overview
• Gallery
• Repository Files
• Getting Started
• Project Links
• License & Author

PowerPD is an innovative ESP32-based USB-C Power Delivery (PD) and Power Profile Specification (PPS) programmable bench power supply. It leverages modern USB-C PD technology to provide a flexible, programmable power source that can deliver various voltage and current levels.

Perfect for electronics enthusiasts, makers, and professionals who need a compact, feature-rich power supply for prototyping, testing, and DIY projects.

• ⚡ USB-C Power Delivery Support - Harness power from modern USB-C PD chargers (5V-20V)
• 🎛️ Programmable Voltage & Current - User-configurable output with real-time control
• 🔧 ESP32 Powered - Full-featured microcontroller for advanced functionality
• 📱 Interactive Menu System - Intuitive interface for easy configuration
• 📊 Real-time Monitoring - Display current voltage and current output
• 🎓 Easy Programming - UART to USB interface for firmware updates
• 💾 Compact Design - Space-efficient bench power supply form factor
• 🏗️ Open Source - All designs, schematics, and code included

The PowerPD system operates through a simple but powerful workflow:

1. Power Input 🔌

   • A USB-C PD/PPS charger supplies power to the system
   • The system negotiates the desired voltage with the charger

2. ESP32 Control 🧠

   • The ESP32 microcontroller manages voltage negotiation and current limiting
   • The AP33772S power manager IC provides precise voltage and current regulation

3. User Configuration ⚙️

   • Users set desired voltage and current values through an intuitive menu interface
   • Real-time feedback shows current operating parameters

4. Power Output ⚡

   • The regulated output is available as a programmable bench power supply
   • Suitable for powering various electronics projects and testing scenarios

• ESP32 Development Board or PowerPD PCB
• USB-C Power Delivery (PD) Charger (5V-20V recommended)
• Arduino IDE with ESP32 support
• UART to USB adapter (CH340G or similar) for programming

1. Clone/Download the Repository

   git clone https://github.com/Rau7han/PowerPD.git

2. Prepare the Firmware

   • Open Firmware/PowerPD.ino in Arduino IDE
   • Include the AP33772S.cpp and AP33772S.h libraries
   • Select ESP32 board and appropriate COM port

3. Upload Firmware

   • Connect UART to USB adapter to programming header
   • Upload the firmware to your ESP32

4. Power On

   • Connect USB-C PD charger to the PowerPD input
   • The system will boot and display the menu

5. Configure Output

   • Use the menu system to select desired voltage (5V-20V)
   • Adjust current limits as needed
   • Your programmable power supply is ready to use!

Author: Rau7han

License: See repository for detailed license information