Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)
Ask More Info Of  A Seminar Ask More Info Of A Project Post Reply  Follow us on Twitter
14-03-2012, 02:39 PM
Post: #1
Celsius and Fahrenheit scale digital thermometer using 8051 microcontroller
Celsius and Fahrenheit scale digital thermometer using 8051 microcontroller (AT89C51)


.doc  Celsius and Fahrenheit scale digital thermometer using 8051 microcontroller.doc (Size: 142 KB / Downloads: 161)

Fahrenheit scale digital thermometer is a temperature indicator which displays temperature in Fahrenheit scale. It is similar to Celsius scale digital thermometer, except a little modification in the microcontroller program. The temperature sensed in Celsius scale in the Celsius scale thermometer project is converted into the Fahrenheit scale temperature just by using the Celsius to Fahrenheit conversion formulae.
A digital thermometer can be easily made by interfacing a temperature sensor to the microcontroller AT89C51. The temperature sensor used in the project is LM35. The LM 35 IC generates a 10mV variation to its output voltage for every degree Celsius change in temperature. The Output of the temperature sensor is analog in nature so we need an analog to digital convertor for converting the analog input to its equivalent binary output. The ADC 0804 is the analog to digital convertor IC used in the project. 0804 is a single channel convertor which converts the analog input up to a range of 5V to an equivalent 8-bit binary output.
The step size is defined by the voltage applied at the Vref/2 pin of the ADC IC. For example, if the voltage at Vref/2 pin is set to 1.28V then ADC has a step size of 10 mV. So if the input voltage is 1V the equivalent binary output of ADC will be 100 or 0110 0100 in binary. The 8 bit binary output of the ADC is incremented by one for every 10 mV rise of input voltage. Different step size can be selected by changing the voltage input to the Vref/2 pin. The step size of the ADC is calibrated using a preset to match the actual temperature. Once the ADC is calibrated it will give the correct output further. The binary output of ADC is fed parallel to a port of the microcontroller . The microcontroller reads the input through ADC and displays the corresponding decimal value on LCD indicating the temperature.

The value is converted to the Fahrenheit scale by employing the Celsius to Fahrenheit conversion formulae in the microcontroller program.
Rating Celsius and Fahrenheit scale digital thermometer using 8051 microcontroller Options
Share Celsius and Fahrenheit scale digital thermometer using 8051 microcontroller To Your Friends :- Seminar Topics Bookmark
Post Reply 

Marked Categories : how to show in fahrenheit in digital thermometer, industrial applications of digital thermometer using 8051 micro controller, temperature indicator that displays, temperatur digital doc, microcontroller efficient fahrenheit conversion, 8051 thermometer on pc, pc thermometer using 8051 microcontroller, report material for project digital thermometer using 8051 miacrocontroller and lm 35 temperature sensor with lcd display, seminar on digital thermometer, digital medical thermometer using 8051, seminar on 8051, digital thermometer, digital thermometer project report, microcontroller adc interfacing doc, celcius scale digital thermometer,

[-]
Quick Reply
Message
Type your reply to this message here.


Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  DIGITAL BOOK FOR THE BLIND PEOPLE seminar class 2 2,336 10-12-2014 10:08 AM
Last Post: Guest
  RFID based Secured access system using 8051 microcontroller (AT89C51) uploader 1 791 09-11-2014 06:09 PM
Last Post: Guest
  ARM7 LPC2148 MICROCONTROLLER SEMINAR REPORT project maker 0 159 23-09-2014 03:23 PM
Last Post: project maker
  The microcontroller based coin operated prepaid electricity is the latest technology seminar code 0 90 11-09-2014 02:39 PM
Last Post: seminar code
  SELECTING THE RIGHT MICROCONTROLLER UNIT SEMINAR REPORT project maker 0 87 11-09-2014 10:43 AM
Last Post: project maker
  Tachometer USING 8051 MICROCONTROLLER SEMINAR REPORT seminar code 0 116 04-09-2014 04:20 PM
Last Post: seminar code
  DIGITAL JEWELLERY SEMINAR REPORT seminar code 0 127 28-08-2014 04:49 PM
Last Post: seminar code
  digital gate pass management system project maker 0 89 27-08-2014 02:28 PM
Last Post: project maker
  8051 Microcontroller and Embedded Systems seminar code 0 148 07-08-2014 12:03 PM
Last Post: seminar code
  DIGITAL HYDRAULIC JACK project maker 0 84 04-08-2014 11:50 AM
Last Post: project maker
This Page May Contain What is Celsius and Fahrenheit scale digital thermometer using 8051 microcontroller And Latest Information/News About Celsius and Fahrenheit scale digital thermometer using 8051 microcontroller,If Not ...Use Search to get more info about Celsius and Fahrenheit scale digital thermometer using 8051 microcontroller Or Ask Here

Options: