Project Introduction
This project is a master-slave robotic arm with a manual controller, controlled using an Arduino UNO, potentiometers, and several servo motors. Through this project, you can learn how to program with Arduino and create a robotic arm that can be flexibly controlled.The materials and components required for this project are very simple, making it achievable even for beginners through straightforward learning.
The construction of robotic arms and servo control is foundational for creating bipedal robots, quadrupedal robots, and multi-legged robots. By learning and hands-on practice in this project, you can lay a foundation for building more complex robots.
In the quadrupedal robot shown in the animated image below, each leg is essentially a robotic arm.
Functionality
Returning to the main topic, the design of this robotic arm is based on three conventional PWM servo motors, with each angle controlled by a variable resistor. The controller consists of a 3D printed shell and three rotary potentiometers, allowing for precise adjustments to the angles of the robotic arm. The Arduino code can read the values from the rotary potentiometers and convert them into corresponding angle inputs for the respective servo motors.
Materials List
Hardware Components
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• Arduino UNO
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• Servo Motor MG995 × 2
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• Servo Motor DS3115 × 1
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• Rotary Potentiometer, 10k Ohm × 1
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Note that the servo motors used in this project are high-torque servos with metal gears, as the chassis and gimbal require significant torque. This is intended for learning and prototyping; cheaper plastic gear low-torque servos may be used.
Software
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• Arduino IDE
Construction Method
Building the Robotic Arm This robotic arm uses two DS3115 servo motors for vertical and swinging motions, along with one MG995 servo motor. Assemble the three servo motors to complete the construction of the robotic arm.
Building the Controller The controller shell is made using a 3D printer, providing holes for the rotary potentiometer knobs and positioning holes, as well as a groove for inserting the knobs.
Assembly Combine the completed components with the three rotary potentiometers to finish the assembly of the robotic arm and controller.
Application Scenarios
This robotic arm and controller can be applied in various scenarios such as education, research, and entertainment. In education, it can be used to teach students about mechanical structures and program control, helping them better understand mechanical principles and programming. In research, it can be utilized for experiments and studies, such as developing and testing robot control algorithms. In entertainment, it serves as a DIY project, allowing enthusiasts to build their own robotic arms and experience the fun of mechanical control and programming.
Conclusion
Through this project, you can learn how to use Arduino to control a robotic arm and create a robotic arm and controller with flexible control capabilities. This not only helps enhance your understanding of mechanical principles and program control but also plays an important role in education, research, and entertainment. We hope this project brings you joy and inspiration, providing you with a deeper understanding of mechanics and programming.
File Download: https://pan.baidu.com/s/18yKH6zb3wPmbTXZwFMEq7g?pwd=1234 (Extraction Code: 1234)
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