<aside> 💡

This guide is for the Robot Driver with ESP32S3 Lite (referred to as the Driver Board).

It is designed for first-time users and will help you get started quickly:

• Learn the basics of the built-in Web App
• Control Feetech bus servos (STS / HLS / SMS / SCS, via TTL single-wire or RS485) using example routines
• Extend later to LYgion hub motors and joint actuators (via CAN bus) </aside>

Product Overview

• Model Name: Robot Driver with ESP32S3 Lite
• Applications:
  • Works as a standalone robot controller
  • Controls bus devices such as servos, hub motors, and actuators (built-in TTL, RS485, CAN)
  • Acts as a sub-controller for high-frequency interpolation tasks
  • Cooperates with a Raspberry Pi, Jetson, or PC to build a layered “big brain + small brain” control system

Web Application

The Driver Board comes pre-loaded with a Web App.

No extra software is needed—just connect with a smartphone or PC browser to access the control panel.

Power Supply Guide

• Peripheral Power

  Servos, hub motors, and actuators require power through the DC jack or XT30 (2+2).

  These peripherals will only operate when the Driver Board’s power switch is ON.

• Operating Voltage

  Match the input voltage with your device (e.g., use a 12V supply for 12V servos).

  The supply rail is directly connected to control ports and supports brief high-current peaks.

• Board Functions

  Onboard features such as the OLED display, buzzer, joystick switch, and Wi-Fi run with USB Type-C power only.

• USB Power Only

  Plugging in Type-C automatically powers the board, regardless of the switch position

  (the switch only controls peripheral power).

Startup and Web App Access

1. Power On

   • When using DC / XT30 power, flip the switch to ON.
   • Indicators:
     • Buzzer beeps once (sound may be faint if the hole is blocked).
     • OLED shows AP/STA IP information (STA IP will be blank if Wi-Fi is not yet configured).

2. Connect to Hotspot (AP mode)

   • On startup, the Driver Board creates a Wi-Fi hotspot:
     • SSID: Robot
     • Password: 12345678
   • For multi-device setups, change the default SSID and password.
   • Even if your phone/PC shows “No Internet,” stay connected.

3. Open the Control Page

   • Launch Chrome, Edge, Safari, or Firefox.

   • Enter: 192.168.4.1

   • The Web control interface will appear.

     

4. Connect to Existing Wi-Fi (STA mode)

   • Open Wi-Fi Setting in the Web App.
   • Enter your router SSID and password.
   • On success, the OLED shows the assigned IP next boot.
   • From the same LAN, open this IP in your browser to access the Web App.