Digital thermometer

This is the easiest way to build a digital thermometer. Hope your assessment for further improvements.

1. Submitted by Al- hifazat Milu (1502069) Fazleyrabbi Palash (1502098) Pranto Saha (1502100) Shahriar Emon (1502108) Adnan Bin Sultan(1502112)

2. What is Digital Thermometer? Digital thermometers  are temperature-sensing instruments that are easily portable, have permanent probes, and a convenient  digital  display. The way a  digital thermometer  works depends upon its type of sensor. Sensor types include resistance temperature detector (RTD), thermocouple and thermistor.

3. Parts Temperature sensor Microcontroller (ATmega8 ) 7 Segment Display Voltage regulator (7805 ) 9 volt bettery ( LM35 ) LED Resistor IC base (28 pin) PCB board

4. Circuit Diagram

5. Advantages It’s portable Easy to carry, v ery light in weight Can measure -55 to 150 degree Celsius Very cheap Gives accurate reading

6. Application Medicine —  Digital thermometers are often used in clinical settings on patients. HVAC thermometers  — rated for HVAC applications such as duct or flume monitoring. Sanitary applications —  Sanitary thermometers are rated for sanitary use such as food or pharmaceutical applications. Home use —  includes digital thermometers used for home health care, cooking, and monitoring temperature on home appliances such as the refrigerator or swimming pool. Laboratory —  includes monitoring experiments and chemical reactions as well as maintaining an optimal laboratory environment. Food Service —  uses thermometers in identifying completeness of cooking, and sanitation of ingredients. Meteorological thermometers —  give air, atmosphere and water temperature readings.

7. Thank You