The fan and the plug were later added using photoshop. The diagram consists of an arduino,a relay, an lm35 sensor, an AC fan, and a plug. The temperature controlled fan circuit is very simple. The ...

How It Works The LM35 sensor continuously measures the ambient temperature. The Arduino reads this temperature value through its analog input. Based on predefined temperature thresholds, the Arduino ...

Arduino-based Digital Thermometer – Circuit and Working The circuit diagram of the thermometer is shown in Fig. 2. The thermometer is built around an Arduino board (BOARD1), a temperature sensor LM35 ...