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Recent content by ru

  1. R

    Connect sound chip to microcontroller

    sorry to trouble you.. but do u know how to program it to record some sound and playback when a sensor detected some thing? this circuit i already connected, but just cannot do the recording and playback.. can give me some guidelines? thanks..
  2. R

    Connect sound chip to microcontroller

    sound chip schematic Anyone know how to connect the sound chip to 8051 microcontroller chip? My sound chip model is ISD2590. Anyone having the connection circuit or program regarding this? Anyone can help?? Urgent!!
  3. R

    How to simulate ADC by using the dip switch??

    ADC simulator may i know how to simulate ADC by using the dip switch?? anyone got similar program?? can post here?? thanks.. :)
  4. R

    4 bit mode lcd data transfer

    may i know what is the difference between the program of a 8 bit mode and 4 bit mode lcd?? do i need to initialize anything by using the 4 bit mode?? can anyone show me the simple program by using the 4 bit mode?? is urgent!! thanks a lot... :)
  5. R

    How to write a busy flag program?

    Re: how to write busy flag? #include<at89s53.h> #define EN P0_1 #define RW P0_2 #define RS P0_7 #define SW P0_6 #define clearLCD 0x01 void Delay(unsigned int Duration) { while((Duration--)!=0) { unsigned int loop=1000; while((loop--)!=0); } } void strobe() // Generate the E signal {...
  6. R

    How to write a busy flag program?

    how to write busy flag? how is the busy flag program looks like? how to use it?? anyone who knows pls help me asap.. is urgent... thanks...
  7. R

    how to use delay function??

    sorry.. why i cant find the server for this link?
  8. R

    how to use delay function??

    okie... thanks a lot.. but can you post your program for me here to have a look if you still having it?? pls...
  9. R

    how to use delay function??

    how to write the delay function for the purpose of making the alarm trigger after 2 secs when the sensor detecting an object??
  10. R

    Learning microcontroller programing

    do u all know any of the link can learn 8051 microcontroller programming that using C-languages but not Assembly-languages?? :?:
  11. R

    How to write the 8051 program to control the alarm??

    8051 how to write program Is there anyone can help me? i a bit blur already.. Really don't know how to connect.. :cry:
  12. R

    How to write the 8051 program to control the alarm??

    light sensors programing in 8051 It is a photoelectric reflex switches from a company called 'Sick'.. Part no: WT4-2N132 The Light source, light type = LED, red light.. The switching output is NPN.. Switching mode is light-switching.. NPN; signal voltage HIGH =Approx. VS NPN; signal voltage...
  13. R

    How to write the 8051 program to control the alarm??

    how to write program to microcontroller I'm using the photoelectric sensor to detect the person and trigger a alarm output.. Actually the sensor is just a small photoelectric switches... required a DC 10V and current< 100mA.. When i test the sensor with the LED, the LED light up when sth is...
  14. R

    How to write the 8051 program to control the alarm??

    edge trigger 8051 program okie.. thanks... one more thing is... how to connect the sensor to the 8051 chips?? do i need to add any components between the sensor output and the 8051 pins??
  15. R

    Programmer for the AT89C52

    Halo.. Will this programmer can program At89s53?? I need it that schematic. Can anyone tell me?
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