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Recent content by gameelgamal

  1. G

    connecting 3 atmega 32 ???

    thank u but if any one have c example
  2. G

    connecting 3 atmega 32 ???

    i didint find anything
  3. G

    connecting 3 atmega 32 ???

    can any one support me with c example for sending and recieving data via i2c
  4. G

    connecting 3 atmega 32 ???

    hi I want to connect 3 avr (atmega 32) one master and the other is slave to exchange data ,what protocol i should use ,i want to use i2c so if any one could help me because i try searching but every post deal with linking avr with eprom. and what is the different between i2c and i2c(2 wire)...
  5. G

    L298 operating at high voltage

    I am using an L298 as a H-bridge Inverter. Is there a configuration so that I can increase the output voltage of a l298 instead of the maximum 46V to about 100V or more?
  6. G

    calculate the amplitude of sin signal ??

    calculating rms value of sine wave with dc offset Should the 100 samples be in the one cycle, or it can be tooken over more than one cycle
  7. G

    calculate amplitude of sin signal??

    Ok I want to use a microcontroller to calculate the amplitude of a sin signal the microcontroller has a built in analog to digital converter unit the sin wave will be in the range of 220V-50Hz. So ,firstly, I will use a step down transformer I also have an OPAMP circuit that can add a DC...
  8. G

    calculate the amplitude of sin signal ??

    signal amplitude So. in case of 50 Hz sin wave , n/2=5 ms. Right? what do you mean by dc free?? you mean no DC offset added to it?? thanx..
  9. G

    calculate the amplitude of sin signal ??

    amplitude of sin Ok... I'm going to implement this algorithm using a microcontroller, But I still find some difficulty. So please tell me if I'm wrong First , at a random point of the program, I will perform an analog to digital conversion process to compute V1. Secondly , after a certain...
  10. G

    calculate the amplitude of sin signal ??

    signal amplitude Hi How to calculate the amplitude of sin signal using microcontroller? What I need is the algorithm which will be implemented in the microcontroller to compute the amplitude (or the RMS value) of the input signal... thanx...
  11. G

    calculate amplitude of sin signal??

    how to calculate amplitude Hi I need an algorithm used to calculate amplitude of sin signal? thanx...
  12. G

    I want to learn visual basic

    Hi I want to learn visual basic I need any book or tutorial to get start thanx.....
  13. G

    (Orcad ) Printing the drill hole in its real size??

    drill hole printing Im working on a single side board, So I have only the 'Bottom layer'....Ok I want to preview both the 'bottom layer' and 'drill layer' together, So I can print them together in one sheet. pressing 'shift+6' sucessed in previewing the two layers, but I still cant print them...
  14. G

    (Orcad ) Printing the drill hole in its real size??

    drill hole sizes Thank you for replying but it doesnt work with me... this is what I get
  15. G

    Need to control water temperature using a PID control

    pid control in c Hi... I need to control a water temperature using a PID control I have finished the tuning of my system, I mean that I have calculated Kp, Ki & Kd My problem is :I dont know how to write the output equation in C: out = Kp e + Ki ∫e dt + Kd de/dt I need any example of PID...
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