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Recent content by vipul

  1. V

    Using timer0 and serial interrupt in 8051

    May be the problem of Interrupt priority.... But can u put your code so we can varify it????
  2. V

    Digital calendar using ds1307 0r ds12887

    Hi rashidali.. U have developed code for calender using RTC... so now u have to just take data from user using keys...and as per the data entered by user u have to set parameter in RTC... read RTC continuously and print on LCD...
  3. V

    RTD interface circuit

    interfacing to 1mv pic Hi Babesh, Thanks for reply... Actually I also get output of circuit with some changes... Thanks, Vipul
  4. V

    RTD interface circuit

    interface circuit Hi Babesh.. Did u get the output from above ckt???? I tried ckt on bread board as well as with simulation but it doesn`t work... If you have any circuit for PT100 interfacing..can u post it here???? Thanks...
  5. V

    Over-voltage supplied to AT89S51

    Whether your chip was heated or not??? If yes..your chip is not usable .....
  6. V

    Is it possible to display images with 8051controller on LCD?

    Yes it is possible.. Even you can get code for the same through googling... But you should have knowledge of micro controller... Best luck..
  7. V

    [8051]display negative temperature readings from sht1x

    8051 negative I have no idea about assembly... but if u can switch over to C language u can display negative temperature on LCD... I have done it using sprintf function in my code...
  8. V

    (Help)How to write a data into a EEPROM(AT28C256).

    how data goes into the eeprom check the below link -vipul
  9. V

    jhd 162A lcd interfacing

    jhd 162a interfacing if u have mazidi book for 8051 micro Controller then read it... there is chapter on LCD which describes interfacing as well as code is also available....... of u dont have it then surf on net u ll get lot of reference material...
  10. V

    color Graphical display on AVR

    avr graphical display what is your problem..Can u explain more????
  11. V

    Help me generate square wave using 8051

    how to generate low frequency to 8051 port pin You have to use timer interrupt... So first calculate the Value for registers TH and TL for required frequency.. And activate timer interrupt... In Interrupt loop toggle any one Port pin.. means for odd time make port pin high and for even time...
  12. V

    Pic interfacing with LCD problem?

    convertir entero a caracter lcd pic As Arthur wrote previously you have to convert result of ADC in "Degree" form then print to the LCD... In above program u are directly printing 'bin' variable which is merge result of lower and higher bits of ADC registers... -Vipul
  13. V

    Problem in Comparator circuit

    low voltage indicator on lm311 Hi Zenouir, I will check the circuit and update you later... Thank u very much for the reply... -Vipul. Added after 2 hours 6 minutes: Zenouir, I have checked circuit posted by u. In this circuit relay does not trip even if the Battery voltage is 11.5...
  14. V

    sms opening electronics lock door

    teltronika gsm module you can connect nokia 3310 mobile to microcontroller using FBUS protocol.... so search about FBUS protocol... you have to connect 3 pins of mobile to microcontroller if u r using controller with 5 V power supply then you have to use 4050 ic which is voltage compatible...
  15. V

    Problem in Comparator circuit

    lm358 comparator single power supply hi.. Circuit is working fine when i m decreasing voltage using pot but it is giving problem when battery voltage is decreasing itself .. Means when i am taking input voltage down to reference voltage using pot the relay trips correctly and only single...
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