⚡ Arduino Projects Directory
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All 15 projects in one place — circuits, code & explanations 15 projects
4 projects
Beginner
Beginner
Soil Moisture Auto-Watering
Reads soil moisture and automatically triggers a water pump when plants are thirsty.
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Beginner
Beginner
Temperature Controlled Fan
DHT11 reads temperature and adjusts DC fan speed automatically using PWM control.
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Beginner
Beginner
Ultrasonic Distance Measurement
HC-SR04 measures distances 2cm–400cm and displays readings on LCD in real time.
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Beginner
Beginner
LDR Controlled Street Light
Light-dependent resistor detects darkness and auto-switches street lights on at dusk, off at dawn.
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3 projects
Intermediate
Robotics
Obstacle Avoiding Robot
Autonomous robot uses ultrasonic sensor to detect and navigate around obstacles in real time.
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Intermediate
Robotics
Line Follower Robot
IR sensors detect a black line and the robot autonomously follows the path with precision.
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Intermediate
Robotics
Bluetooth RC Car
Control a 4-wheel car with your smartphone via HC-05 Bluetooth — forward, reverse, left, right.
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3 projects
Intermediate
IoT
IoT Weather Monitoring System
Streams live temperature, humidity and pressure readings to an online dashboard via WiFi.
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Intermediate
IoT
Smart RFID Access Control
Tap an RFID card to unlock a door — authorized cards trigger a servo, unauthorized ones set off an alarm.
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Advanced
IoT
ESP8266 Smart Health Monitor
Monitors heart rate and SpO2 with MAX30100 and sends data to a cloud dashboard for remote tracking.
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3 projects
Advanced
ESP32
ESP32 Gas Leak Detection System
MQ sensor detects hazardous gas levels and immediately triggers an alarm + sends an alert notification.
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Advanced
ESP32
MQTT Weather Logger
MicroPython-powered ESP32 logs weather data to an MQTT broker for home automation integration.
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Beginner
ESP32
OLED Display Interface with ESP32
Drive a 128×64 OLED over I2C to show custom text, shapes, and real-time sensor readings.
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2 projects
Intermediate
Science Exhibition
Smart Traffic Light Control
Adaptive traffic signal adjusts timings based on vehicle density detected by IR sensors at each lane.
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Intermediate
Science Exhibition
Smart Waste Management System
Ultrasonic sensor monitors bin fill level and sends a phone alert when the dustbin needs emptying.
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