ESP32 3D Printed Robotic Arm Project | DIY Wireless Robotics Kit for Students
ESP32 3D Printed Robotic Arm Project
Robotics just got way more exciting! 🤖✨ In this DIY project, we build a 4-DOF 3D printed robotic arm using ESP32, high-torque servo motors, and a web-based wireless control interface.
This ESP32 robotic arm project by Kitkraft is perfect for engineering students, school children, and STEM learners who want hands-on experience with robotics, IoT, and embedded systems.
🚀 Project Highlights
- 3D printed robotic arm with modular design
- ESP32 microcontroller with built-in WiFi
- 4 servo motors for smooth 4-DOF movement
- No soldering required – plug-and-play breadboard setup
- Web-based control using any browser
📦 What’s Included in the Kit
- Custom 3D printed robotic arm parts
- 4× high-torque servo motors
- ESP32 development board
- Breadboard
- Power supply module
- Jumper wires, nuts & bolts
🛒 Buy the ESP32 Robotic Arm Kit:
⚙️ How the ESP32 Robotic Arm Works
The ESP32 acts as the brain of the robotic arm. It hosts a lightweight web server that allows users to control each servo motor wirelessly using sliders in a browser.
This makes the project ideal for learning IoT robotics, PWM servo control, and web-based embedded systems without using any mobile app.
🔩 Mechanical Assembly Overview
- Assemble all 3D printed parts using nuts and bolts
- Mount servo motors securely into the joints
- Check smooth movement before connecting electronics
Tip: Avoid over-tightening screws to protect servo gears.
🔌 Circuit Diagram & Connections
📌 Insert Circuit Diagram Image Here
| Servo Motor | ESP32 GPIO Pin | Function |
|---|---|---|
| Base Servo | GPIO 13 | Base rotation |
| Shoulder Servo | GPIO 12 | Arm up/down |
| Elbow Servo | GPIO 14 | Forearm movement |
| Gripper Servo | GPIO 27 | Gripper open/close |
⚠️ Important: Use an external 5V power supply for servo motors and ensure all grounds (ESP32 + servos) are connected together.
💻 Programming the ESP32
- Install Arduino IDE
- Add ESP32 board support
- Select correct board and COM port
- Upload the provided code
📂 Download Code from GitHub
GitHub Repository:
GitHub - kitkraftin/3d_printed_robotic_arm
The repository includes:
- ESP32 web server code
- Servo control logic
- Web-based control interface (HTML + CSS)
YouTube Links
Short Link :
3D Printed Robotic Arm Kit ESP32: Web Control Demo! #diyrobotics
Longform Video:
3D Printed Robotic Arm Kit: ESP32 Web Control! (DIY Build) - YouTube
🎓 Learning Outcomes
- ESP32 WiFi & web server concepts
- Servo motor control using PWM
- Robotics mechanical assembly
- Hands-on STEM & embedded systems learning
🚀 Project Extensions
- Add joystick or mobile control
- Save preset arm positions
- Integrate camera and AI vision
- Build pick-and-place automation projects
🎉 Final Thoughts
This ESP32 3D printed robotic arm project is a powerful hands-on learning tool for robotics education. Build it, control it wirelessly, and explore endless automation possibilities.
👉 Start building today:
https://kitkraft.in/RBARMYT
— Team Kitkraft 💙