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Recent content by oTaRu

  1. O

    HELP NEEDED!! Problem with PIC16F877

    Hi, I having this problem with PIC16F877. Whenever I place a 5v to the input port (PORT A) of PIC16F877, the output ports (PORT B & PORT D) do not have the same 5v as input port... The result is either 1.3mv or 0.6mv when I uses multimeter to measure... Below is the code: #ifndef...
  2. O

    using PIC16F877 together with L293D

    enable pin in l293d thanks Kaleborg! I have tried to reduce the delay loop but somehow my output was unable to have a full 5v to trigger the L293D. It always stuck at about 0.5mv or 1.3mv
  3. O

    using PIC16F877 together with L293D

    pic16f877 have output pins So what value should I use? What is your recommendation? thanks!
  4. O

    PIC16F877 to control L293D for the motor- time control issue

    Time control issue... Thanks! I had tried with it. But nothing has changed. I did not use mplab sim to try as my lab do not have this software. I have noticed that my output (portD) does not have any voltage flow between the PIC controller and the IC chip. I have been trying to solve this...
  5. O

    PIC16F877 to control L293D for the motor- time control issue

    Time control issue... oh... so i should edit it to 65535 for the maximum? void DelayUs(int count) { int i; int j; for(i = 0; i < count; i++) { for(j = 0; j < 65535; j++); //This for loop has 5 NOPs & wastes 1 uS for our PIC clock frequency of 20MHz. } }
  6. O

    PIC16F877 to control L293D for the motor- time control issue

    Time control issue... Hi, I am currently using PIC16F877 to control L293D for the motor. The issue is I was unable to set the time control to stop the motor when the time is up... No matter how big the value in my C programming. It will still stop less than 1sec time. Please advice. Thanks...
  7. O

    Using PIC16F877 to control speed of motor

    in my project, it doesn't require to turn with specific direction. either clockwise or anti clockwise is fine. Added after 2 minutes: 3 My apologises, Advares. Are you referring to me or glenndr_15?
  8. O

    Using PIC16F877 to control speed of motor

    I using DC motor. I was told by my lab technician that the red/black wire can be ignore since red or black wires can be connect in either way
  9. O

    using PIC16F877 together with L293D

    l293d enable actually i only need output pin as I need the PIC16F7877 to be able to have internal time control then when time is up, the output port will be off... So I believe the TRISB input can be ignored.
  10. O

    Using PIC16F877 to control speed of motor

    I having a problem using the PIC16F877 to enable/disable L293D IC chip for enabling and disabling the DC motor. I am using PORTD of PIC16F877 to control the enable pin 1 of L293D but it's seem not controlling at all. here is the code: //Define compiler error message. #ifndef __CPU_16F877__...
  11. O

    using PIC16F877 together with L293D

    l293d Hi all, I having a problem using the PIC16F877 to enable/disable L293D IC chip for enabling and disabling the DC motor. I am using PORTD of PIC16F877 to control the enable pin 1 of L293D but it's seem not controlling at all. here is the code: //Define compiler error message. #ifndef...
  12. O

    Using PIC16F877 to control speed of motor

    actually I'm not familiar with types of motor but just that I require to use PIC controller to control the motor as part of my project...
  13. O

    Using PIC16F877 to control speed of motor

    **broken link removed** Hi bobcat1, this is the vibration motor that I am using. do u have any idea regarding this?
  14. O

    Using PIC16F877 to control speed of motor

    Hi all, is it possible to use PIC16F877 to control various speed of the motor? If possible, can you show me how to use c programming to configure in such a way. Many thanks! Newbie here.
  15. O

    C programming for PIC 16F877 to stop the motor from vibrate

    Re: C programming for PIC 16F877 to stop the motor from vibr thanks but i need to use PIC16F877 to do...
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