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Recent content by sugandha_

  1. S

    [51] lcd interfacing with AT89C52 microcontroller

    I had changed it to 12MHz before creating hex file and loading it.
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    [51] lcd interfacing with AT89C52 microcontroller

    What is the minimum delay time required for LCD display? I'm using JHD162A LCD display.
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    [51] lcd interfacing with AT89C52 microcontroller

    ;---------------------------------------------------------------------------------------------------#! ;---------------------------------------------------------------------------------------------------#! ;-----------------------------{{Author: Mustafa...
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    [51] lcd interfacing with AT89C52 microcontroller

    The second circuit attached earlier has all the connections which I have done There's none extra connection done by me....I'm providing common 5V Vcc to the circuit...
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    [51] lcd interfacing with AT89C52 microcontroller

    I think the problem is with LCD interfacing and not with keypad because before any input from keypad there are words which are supposed to be displayed on screen.
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    [51] lcd interfacing with AT89C52 microcontroller

    There's no resistor connected to keypad in your circuit. Can you please clarify it? I have connected pin31 with VCC which is mentioned in your circuit but still facing the same problem.
  7. S

    [51] lcd interfacing with AT89C52 microcontroller

    this is full connection i have tried out. The crystal value is 12MHz and capacitors used are of 33pF. Pin3 of lcd is connected with potentiometer and I have also tried it with connecting the pin3 directly with VCC. Still getting blank screen. Can you please tell me about the floating signals...
  8. S

    [51] lcd interfacing with AT89C52 microcontroller

    When I connect my LCD to AT89C52, it's just showing a blank screen. I have connected pin3 of lcd irectly to 5V and have also tried it with potentiometer but still getting the same results. All the data lines of lcd are high, when checked with multimeter. I'm using JHD162A lcd screen. The...

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