This video demonstrates the making of Digital Temperature Indicator. Components required to make digital temperature indicators are
1) LM35 Temperature Sensor
2) W78e052 Microcontroller(Pre Programmed for temperature Indicator )
3) ADC MCP3202
4) Universal Project board available in the market
5) 12 volt 2 Amp SMPS
6) 7 Segment Display board
LM35 is a precession Integrated circuit Temperature sensor, whose output voltage varies, based on the temperature around it. It is a small and cheap IC which can be used to measure temperature anywhere between -55°C to 150°C. It can easily be interfaced with any Microcontroller that has ADC function or any development platform like Arduino or universal project board.
Power the IC by applying a regulated voltage like +5V (VS) to the input pin and connected the ground pin to the ground of the circuit.
If the temperature is 0°C, then the output voltage will also be 0V. There will be rise of 0.01V (10mV) for every degree Celsius rise in temperature. The voltage can converted into temperature using the below formulae.
Vout=10mv/degree C * T
LM35 Temperature Sensor Features:
Operating voltage Typically 5V.
Can measure temperature ranging from -55°C to 150°C
Output voltage is directly proportional (Linear) to temperature (i.e.) there will be a rise of 10mV (0.01V) for every 1°C rise in temperature.
±0.5°C Accuracy
Drain current is less than 60uA
Low cost temperature sensor
Small and hence suitable for remote applications
Available in TO-92, TO-220, TO-CAN and SOIC package
Preprogrammed Microcontroller Ic and Universal Project Board is available at Tiara Technologies. www.tiaratechnologies.in
Thanks for watching.
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15 окт 2024
