Smart Robot Arm for Arduino & MicroPython ESP32 4DOF Programmable Robotic Arm Building Kit with Joystick/Web App Control for STEAM Education, Motion Recording & Loop Playback

The SIYEENOVE Robotic Arm is an ESP32-C3 programming building kit. Built with an acrylic frame and high‑precision MG90S servo motors, it features 4 degrees of freedom (4DOF), allowing independent control of base rotation, shoulder, elbow, and gripper. Compatible with both Arduino and MicroPython, it offers a hands‑on platform for beginners and experienced learners alike to explore robotics, electronics, and programming at their own pace. At its core, the arm features four high‑precision MG90S servo motors, each controlling a distinct joint: Base rotation (Servo A) – rotates the entire arm left and right (±90°) Shoulder joint (Servo B) – raises and lowers the rear arm section Elbow joint (Servo C) – raises and lowers the front arm section Gripper (Servo D) – opens and closes to pick up and release objects All four joints can be controlled independently, allowing for smooth, coordinated movement. The arm’s acrylic structural plates ensure durability while keeping the design lightweight and precise. Assembly: A Little Patience Goes a Long Way This is not a pre‑assembled product — you build it yourself. The assembly process takes about 2–4 hours and requires patience and attention to detail. But that process is where the learning begins. Handling each component, understanding the structure, and building step by step helps develop mechanical intuition, spatial awareness, and problem‑solving skills. The sense of accomplishment from building it yourself fuels motivation for the coding journey ahead. This robot arm kit provides two independent programming tutorials for users of different experience levels. The Arduino Tutorial uses the Arduino IDE and C/C++ language, offering a structured approach to control servos, read joystick input, and implement action. The MicroPython Tutorial, based on the Thonny IDE, utilizes Python syntax for concise code and interactive debugging, making it suitable for users who prefer Python-style development. Both tutorials are fully independent and cover all kit functions. Users can choose the path that best matches their programming background and learning goals. Simply connect to the ESP32 board and control the robotic arm directly from your smartphone or tablet browser. No app installation is required. The intuitive interface lets you control arm rotation, lifting, and gripper opening and closing in real time. With no complicated setup, you can just start exploring robotic movement right away. Perfect for classroom demonstrations, group learning, or quick hands-on experiences at home. Use the included joystick to control the arm intuitively. With the motion record & loop playback feature, you can record a motion sequence step by step using the joystick buttons. Each press captures one action, allowing you to build a custom routine. Once recorded, the sequence plays back in a seamless loop. You can start and stop it at any time. By modifying the code, you can easily expand the recording capacity to store dozens, hundreds, or even thousands of actions. Ideal for teaching demonstrations, automation experiments, or replacing repetitive tasks. The possibilities grow with your creativity. The ESP32-C3 control board is not only designed to perfectly control the 4DOF robot arm, but also features rich expansion capabilities for future projects. In addition to the dedicated servo ports for the robotic arm, the board provides multiple IO expansion ports with different driving capabilities, serial port expansion, a reset button, and a power switch. It also includes a buzzer, system power indicator LED, and a convenient USB Type-C port for code uploading. Whether you want to add extra sensors, LEDs, motors, or other modules, this control board offers excellent scalability, allowing you to easily extend your robot arm into more advanced and creative applications.The SIYEENOVE Robotic Arm offers a progressive learning journey: start with the hands-on experience of building, move to the interactive experience of controlling, and advance to the intellectual challenge of programming. This is not a pre-assembled kit — it’s a genuine building experience. The kit comes with over 100 mechanical parts, including acrylic plates, standoffs, screws, nuts, and servo motors, all carefully packaged in labeled bags for easy identification. The assembly process takes approximately 2 to 4 hours and requires patience, attention to detail, and a willingness to work through a structured 27-step guide. But that time is well invested. As you assemble each joint, you’ll gain a deep understanding of how mechanical linkages work, how servos drive motion, and how structural integrity affects performance. Why assembly matters: For parents and educators, assembling the arm together offers a unique opportunity to teach patience, collaboration, and the value of following instructions — all while sharing the excitement of building something functional from scratch. Recommended for ages 13 and up — perfect for young learners, hobbyists, and engineers alike. Whether in the classroom, a home workshop, or a professional prototyping environment, it’s a versatile tool for anyone eager to explore robotics, automation, and coding.