DHT11 Temperature Humidity Sensor Board measures temperature (0–50°C) and humidity (20–90%) with digital output, ideal for weather monitoring, IoT, automation.
The MQ-135 is an air quality sensor that detects gases like ammonia, alcohol, and smoke. It provides analog output for monitoring air pollution levels.
The LDR Light Sensor Module detects light intensity, with resistance decreasing as light increases. Ideal for automatic lighting and brightness sensing.
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