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Autonomous Obstacle Avoidance Vehicle
Ultrasonic Sensing · Arduino IDE · Embedded Systems
Overview
| Microcontroller | Arduino Uno |
| Distance Sensor | HC-SR04 Ultrasonic |
| Language | C++ |
| Detection Range | 2 – 400 cm |
| Behavior | Real-time avoidance |
| Architecture | Non-blocking (millis) |
TODO — Demo video & wiring diagram
Demo video (~30 s) of the vehicle navigating an obstacle course. Annotated wiring diagram (Fritzing or hand-drawn). Place at public/assets/projects/obstacle-avoidance-robot/.
400 cm
Maximum sensor range
2 cm
Minimum detection range
3 states
State machine states
Problem
Approach
Analysis
TODO — Annotated code snippet
Key loop showing the non-blocking millis() pattern, state machine transitions, and sensor read logic. Syntax-highlighted code block.
TODO — Wiring diagram
Schematic showing HC-SR04 trigger/echo pin connections, motor driver wiring, and power distribution.
Result
