CP2102USB2UART
🔌 CP2102 USB to UART reverse-engineered
An open-source reverse-engineered version of the CJMCU CP2102 USB to UART TTL adapter, based on the original component available here. This project aims to provide insights into USB-to-serial communication and offer a customizable alternative for embedded system developers.
🎯 Purpose
- 🔍 Reverse engineering: Understanding the design and functionality of the CP2102USB2UART.
- 🛠️ Skill development: Enhancing expertise in PCB design and USB-to-serial communication.
- 🔄 Future adaptation: Leveraging this knowledge to develop custom USB-to-UART solutions for embedded systems.
📝 Features Comparison: Original vs. Reverse-Engineered
| Feature | Original Module | Reverse-Engineered Version |
|---|---|---|
| 🖥️ PCB Design | Proprietary | Open-source & customizable |
| 🔌 USB Connector | Micro USB | Micro USB |
| 🏷️ Chipset | CP2102 | CP2102 |
| 📌 Pin Mapping | 6-Pin UART TTL | 6-Pin UART TTL |
| ⚡ Supported Voltage | 3.3V / 5V | 3.3V / 5V |
| 👐 Mechanical Drawing | ![]() |
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| 📝 Reverse-Engineered Schematic | N/A | ![]() |
| 📷 Photo | ![]() |
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🛠️ How to Use
📌 Wiring Guide
| CP2102 Pin | Description |
|---|---|
| TXD | Transmit Data |
| RXD | Receive Data |
| GND | Ground |
| 3V3 | 3.3V Power Output |
| 5V | 5V Power Output |
| DTR | Data Terminal Ready |




