Eco-Friendly Thermoelectric Mini Fridge with Temperature Control

The thermoelectric refrigerator utilizes thermoelectric modules (Peltier modules) to generate a temperature gradient between the external environment and the refrigerator interior by applying a potential difference. This design contrasts with conventional refrigerators, which rely on compressors and greenhouse gases for temperature regulation. The system includes an Arduino Uno-based control mechanism to maintain a user-defined temperature, utilizing a thermistor and relay for precise control. The temperature is displayed on a 7-segment LCD. This refrigerator offers an environmentally friendly, user-friendly solution for cooling.