Obstacle Avoiding Smart Car
A smart car that utilizes an Arduino and ultrasonic sensors to detect and navigate around obstacles. It's a classic robotics project for beginners.
Project Overview
A smart car that utilizes an Arduino and ultrasonic sensors to detect and navigate around obstacles. It's a classic robotics project for beginners.
Bill of Materials (BOM)
- Arduino Uno
- L298N motor driver
- 4 wheels
- 4 TT Gear Motors
- Servo Motor
- HC-SR04 Ultrasonic Sensor
- two 18650 Li-ion batteries with a holder
- male/female jumper wires
- an acrylic car chassis
- and a DC Power Switch.
Circuit Diagram & Component Arrangement
Follow the wiring diagram below. Each component connects to specific pins on the microcontroller. Use a breadboard for prototyping and ensure all connections are secure before powering on.
Wiring Summary: The HC-SR04 ultrasonic sensor is connected to the Arduino's digital pins to detect obstacles. A servo motor, also connected to the Arduino, pans the sensor. The Arduino processes sensor data and controls the four TT Gear Motors via the L298N H-Bridge motor driver to navigate.
Step-by-Step Procedure
- Step 1 - Prepare Components: Gather all components from the BOM. Inspect for damage and verify ratings.
- Step 2 - Breadboard Layout: Place the microcontroller on the breadboard. Arrange components for clear wiring paths.
- Step 3 - Power Connections: Connect VCC and GND first. Ensure proper polarity for polarized components.
- Step 4 - Signal Wiring: Connect sensors and actuators per the wiring table. Double-check pin assignments.
- Step 5 - Upload Code: Connect USB, load the sketch, and upload. Verify serial output if applicable.
- Step 6 - Test & Calibrate: Power on and test each function. Calibrate sensors if needed.
- Step 7 - Enclosure (Optional): Mount in a 3D-printed or custom enclosure for durability.
Safety Notes
- Always disconnect power before making wiring changes.
- Use appropriate eye protection when soldering.
- Adult supervision is required for makers under 16.
- Do not exceed voltage ratings of components.
Code & Resources
Attribution
Source: https://projecthub.arduino.cc/aakash11/obstacle-avoiding-robot-8018ae. Not specified in context, but content on Arduino Project Hub is typically for personal and educational use.
Manish Bookreader
Electronics enthusiast, Embedded Systems Expert, Linux/Networking programmer, and Software Engineer passionate about AI, electronics, books, and cooking.
