This guide walks you through setting up a Windows PC as the host controller and an ESP32-S3-based robot driver board as the device, connected through USB CDC.
Once configured, you can use the PC to send commands, run automation scripts, and build complex robot control workflows.
📦 GitHub Repository:
https://github.com/EffectsMachine/robot_driver_with_esp32s3_lite
USB CDC (Communications Device Class) is a standard protocol that lets a USB device appear as a virtual serial port on your computer.
It allows direct communication between your PC (the host) and the driver board (the device) — without requiring a separate USB-to-UART converter.
| Feature | Description | Benefits |
|---|---|---|
| 🔗 No Converter Required | The board includes a native USB interface. | Simplifies wiring, reduces parts and cost. |
| ⚡ High-Speed Data | Transfer rate up to 60–65 packets/sec. | Stable, fast, and ideal for debugging or real-time control. |
| 🛡️ More Reliable | Uses the ESP32-S3’s native USB port — no extra CH340/CP2102 chip. | Fewer connection issues, higher durability. |
| 🔌 Plug & Play | Automatically recognized by most OSes. | No manual driver installation needed. |
| 💻 Cross-Platform Support | Works on Windows / macOS / Linux / Android. | One unified communication method. |
💡 If you’re new to USB CDC, start here.
This method uses a simple graphical terminal to test communication before running automation scripts.
Download and install YAT (Yet Another Terminal):
YAT-2.7.2_x64_(64-bit)_installer.zip