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Recent content by kaka919

  1. K

    [moved] General questions about wifi module -esp8266

    While FT232 does give 3.3 volts regulated output which is required for esp8266, it does not source the required current output. ESP8266 may draw current upto 200 mA. However, FT232 gives a maximum current of 50mA.
  2. K

    Interfacing GPS module mt3333 with 8051

    Thank you. Moving it to open space helped me. The gps module was able to receive signals when moved to open space. But then how does the GPS in our cellphones work even in indoor places. How is the gps module used to interface with controller different from the one used in our cellphones?
  3. K

    Interfacing GPS module mt3333 with 8051

    Guys, I'm trying to interface gps module mt3333 with 8051 but unsuccessful til now. My gps module is not showing me proper values in hyper terminal, i.e. it is not showing me latitude or longitude. Also in $GPRMC statement it is showing a letter 'V' which stands for data not valid. So can anyone...
  4. K

    [moved] Interfacing GPS module mt3333 with 8051

    Guys, I'm trying to interface gps module mt3333 with 8051 but unsuccessful til now. My gps module is not showing me proper values in hyper terminal, i.e. it is not showing me latitude or longitude. Also in $GPRMC statement it is showing a letter 'V' which stands for data not valid. So can...
  5. K

    [SOLVED] ADC0808 giving random values

    Guys thank you for you suggestion and advice, I finally got the output. Instead of giving clock to adc via timer of 8051, I used a 555 timer IC to generate the clock. And it worked well.
  6. K

    [SOLVED] ADC0808 giving random values

    I have posted the full code above(first post). That is the the first code I tried, eventually modified it numerous times, but still no success. I have neglected the bug regarding adc 0808 model in proteus as of now. Initially I had connected EOC pin to pin 3.1, however it was giving me logic...
  7. K

    [SOLVED] ADC0808 giving random values

    Variable delay loop between start and read out as in? I'm checking the EOC pin to know if the conversion has ended. I checked in the datasheet that conversion time is 100 microseconds for adc0808. So do you mean enable the start of conversion and wait for approximately the time period required...
  8. K

    [SOLVED] ADC0808 giving random values

    What do you mean all inputs tied together?
  9. K

    [SOLVED] ADC0808 giving random values

    void timer0() interrupt 1 { if(clock_output==1) //conditional statements for the toggle procedure clock_output=0;//clock =0 else clock_output=1;//clock = 1 buzzer=!buzzer;// toggle buzzer just to check TF0=0; TL0=0XFB;//count for 100 khz which is given as clock to...
  10. K

    [SOLVED] ADC0808 giving random values

    Adc0808 is giving output 00 for 0v and 255 for 5v which is correct, however for analog input between 0 and 5v, it's giving random values. Clock to adc is given via timer of 8051. Using timer 0 interrupt, I;m generating a 100 Khz frequency which is given to clock pin of ADC 0808. Can anyone...

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