Arduino UNO R3 - 1. 433 MHz RF Transmitter - 1. IR Sensor - 2 (one for wear detection and another for drowsiness detection) MQ-3 Sensor - 1 (for alcohol detection) LED & Buzzer - 1 each (for warnings) ...

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An Arduino Uno (CH340G clone) reads temperature and humidity from a DHT11 sensor and computes 10+ environmental metrics (heat index, dew point, enthalpy, humidex, vapor pressures, etc.), outputting ...

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Autonomous obstacle-avoiding car using Arduino Uno, ultrasonic sensor, and L298N motor driver. Detects and avoids obstacles in real-time using simple embedded C logic. Ideal for robotics beginners and ...

To help you with the same, Circuit Digest provides you with a large collection of free IoT projects for you to learn and recreate. The projects are built using the popular development platforms like ...