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Recent content by Qasim Khokhar

  1. Qasim Khokhar

    How to send and receive data using 1sheeld and arduino??

    I am trying to send data to my arduino uno using Android phone, for interfacing i am using 1sheeld bluetooth. i am using blueterm app for development on my android phone, when i press any key from my phone LED light (RXD) on 1sheeld blink but i am unable to get data in MCU UART. please guid...
  2. Qasim Khokhar

    How to count rpm?

    Re: How can i count RPM ? Ohhh yapp :roll: rotation of bicycle wheel
  3. Qasim Khokhar

    How to count rpm?

    Re: How can i count RPM ? RPM of any object which rotate, e.g tire of bike
  4. Qasim Khokhar

    How to count rpm?

    Re: How can i count RPM ? i want to make it with 8051 so kindly guide me ...
  5. Qasim Khokhar

    How to count rpm?

    is there any module for this purpose kindly help me i am not an electrical engineer. Thanku
  6. Qasim Khokhar

    How to Convert 8051 code into Demo code ?

    means if i give code to any other then he would not be able to burn it in micro controller.
  7. Qasim Khokhar

    How to Convert 8051 code into Demo code ?

    i have to give an assembly code to my fellow. i want to convert my code into demo. so that he would not be able to burn my code into 8051 micro controller..... Is there any trick ?
  8. Qasim Khokhar

    Interface Xbee with 8051(at89c/s51)

    How to interface xbee series 1 module with 8051, is there any need of max232/3232,please explain step by step , because i am not an Electrical Engineer . i am very confuse about this task so explain me in simple words and tell me step. if i follow those steps i can easily complete my task...
  9. Qasim Khokhar

    How To Make Beam Break Detector

    can you please describe it in more details , what should i do to avoid blinking of LED i just need steady "on or off"
  10. Qasim Khokhar

    How To Make Beam Break Detector

    hi, i want to make an ir beam break detector. which detect any object between ir source and detector and give 5 volt output. i want to place my source at 10 feet away from detector please help me to build this kind of detector. i am attaching an circuit diagram which according which i develop an...
  11. Qasim Khokhar

    Directory Submitter Tool

    i want to develop auto back link directory submitter for seo any one have idea please guide me .
  12. Qasim Khokhar

    how to make IR beam breaker ?

    would you please explain circuit give in following link https://www.electroschematics.com/6005/ir-beam-breaker/
  13. Qasim Khokhar

    how to make IR beam breaker ?

    i want to build an ir beam breaker circuit.Can any one help me ? i want to turn on Led if IR puls exist and turn Led of if IR plus is absent .
  14. Qasim Khokhar

    [SOLVED] TSOP1738 and 8051 Interfacing For NEC Remote

    hi i want to make parking slot detector using IR there will be transmitter and receiver but no data transfer required i just want to on LED when slot is occupied and if slot is empty turn of LED using 8051 uC tell me how can i do it :
  15. Qasim Khokhar

    Can any one help me about infra-red signal detection?

    yapp veryy close just invisible IR rays i consider ... and minimum distance about 10 ft

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