DIY Robotics

Building an Obstacle-Avoiding Robot Car with Arduino, L293D Motor Shield, Servo Motor, and Ultrasonic Sensor

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A fully assembled obstacle-avoiding robot car on a workbench.

Learn how to build a fully autonomous obstacle avoiding robot car with Arduino, L293D motor shield, SG90 servo motor, and HC-SR04 ultrasonic sensor. This complete tutorial includes a bill of materials, step-by-step assembly, wiring diagrams, full Arduino code with explanation, tuning tips, troubleshooting, and FAQ.

DIY 6-DOF Robotic Arm – 3D Print, Wire & Program Step by Step

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3D-Design eines 6-DOF Roboterarms mit weißem und orangefarbenem Gehäuse, ideal für DIY-Projekte in der Robotik.

📋 Quick Summary Build a complete DIY 6-DOF robotic arm from scratch using 3D-printed parts, MG996R and SG90 servo motors, an Arduino Uno, and a PCA9685 servo driver. This step-by-step guide covers the full workflow from CAD design in Autodesk Inventor through 3D printing, mechanical assembly, electronics wiring, and Arduino programming with potentiometer-based manual control. … Read more