Create a Digital Thermometer Using Arduino and a Temperature Sensor.

The proposed Arduino-Based Digital Temperature Monitoring System demonstrates a simple method of measuring and displaying temperature using an LM35 sensor and an Arduino Uno microcontroller. The sensor converts temperature into an analog voltage, while the Arduino reads the signal, calculates the temperature in degrees Celsius, and displays the result through the Serial Monitor or an optional LCD. The design provides a practical introduction to embedded systems, analog sensor interfacing, analog-to-digital conversion, and microcontroller programming. Its simple architecture and commonly available components make it suitable for educational demonstrations and basic temperature-monitoring applications. The system can be extended with wireless communication, IoT connectivity, data logging, and automatic alerts. However, its measurement accuracy and practical usefulness must be established through suitable testing and calibration. The proposed system provides a foundation for understanding and developing more advanced temperature-monitoring applications.

1)       Arduino, “Arduino UNO Rev3,” Arduino Official Documentation. Available: https://docs.arduino.cc/hardware/uno-rev3/ 2)       Arduino, “Arduino Language Reference,” Arduino Official Documentation. Available: https://docs.arduino.cc/language-reference/ 3)       Texas Instruments, “LM35 Precision Centigrade Temperature Sensors,” LM35 product documentation and datasheet. Available: https://www.ti.com/product/LM35 4)       Arduino, “Arduino IDE,” Arduino Official Documentation. Available: https://docs.arduino.cc/software/ide/ 5)       M. A. Mazidi, S. Naimi, and S. Naimi, The AVR Microcontroller and Embedded Systems: Using Assembly and C. Pearson. 6)       A. S. Sedra and K. C. Smith, Microelectronic Circuits. Oxford University Press. Relevant research articles on temperature sensing, microcontroller-based monitoring, and embedded measurement systems should be selected and verified from the original publications before submission