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  1. N

    Unscented kalman filter implementation

    Hi folks! Well I am feeling hopeless right now. For the past 3-4 hours I am trying to understand unscented kalman filter and its giving me a headache. On a scale of 0-10, my statistic knowledge is close to 1. I read a lot of literature on the UKF but have NO IDEA how to implement it. Let me...
  2. N

    How do I convert byte to int in C ???

    Is that it? I assumed it would be lot more complicated than that
  3. N

    How do I convert byte to int in C ???

    Hello All ! Ok so I am bit confused about how can I convert byte to int in C. So lets say we have a variable A in byte. How would I convert the value of A from byte to int. Thanks ! Neyo
  4. N

    How to increase amplitude of output voltage from 100 m V to 1V

    It just didnt work on breadboard. I showed it to a couple of other student to check my connection - but no one found any mistake.
  5. N

    How to increase amplitude of output voltage from 100 m V to 1V

    Breaking news: Circuit in post #10 and #26 does not work on breadboard
  6. N

    How to increase amplitude of output voltage from 100 m V to 1V

    Why capacitor coupled? Can I simply have a voltage divided that sets my base voltage ( of 2nd npn) at about +0.7V ?
  7. N

    How to increase amplitude of output voltage from 100 m V to 1V

    Ok I think I am beginning to get it. Just one question , what does this term mean "transistor bias" ?
  8. N

    How to increase amplitude of output voltage from 100 m V to 1V

    Thanks all for replying. I am still kind of confused. The purpose is not just to create square wave but to convert the 'sine wave from the oscillator' to a square wave. I am just depressed as when I look at an electronic circuit ( especially with a transistor or an opamp) all the comes up in...
  9. N

    How to increase amplitude of output voltage from 100 m V to 1V

    Yes. Thats what the second transistor is doing.
  10. N

    How to increase amplitude of output voltage from 100 m V to 1V

    True but how do I change 100mV to something that will turn on my second transistor
  11. N

    How to increase amplitude of output voltage from 100 m V to 1V

    Hi all I am building a colpitts oscillator which seems to work just fine. The problem is its "vout" ( shown in the image) is a 100 mV sine wave with a frequency of about 60Khz. I need to square up this sine wave and using another transistor to do so. At the moment , the second transistor is...
  12. N

    [SOLVED] PIN assignment diagram

    Hi InNeedOfHelp Yes I have the same board as you but with a different micro. I used PIC18F4620.
  13. N

    Drop 12 V sqaure wave to 5 V sqaure wave

    Whats wrong with my circuit in post 12?
  14. N

    Drop 12 V sqaure wave to 5 V sqaure wave

    Ok I have experienced a problem. What I forgot to mention was that the 12V output is coming from an "open drain output". Its acting funny. The voltage divider works fine but when I connect my sensor to the CPU using a rs232 I get a constant 5 V output. When I disconnect the RS232 my output...
  15. N

    Drop 12 V sqaure wave to 5 V sqaure wave

    Thanks all for your ideas. Im sticking with a simple voltage divider ( 1kohm and 1.5 kohm ) to give me 4.8 V square wave out.
  16. N

    Drop 12 V sqaure wave to 5 V sqaure wave

    Hi all I want to drop a 12 V square wave to 5 V square wave. This 5 V square wave will be fed to PIC18F4620. I know of clipper circuit , but I need something very simple as I have very limited electronic/electrical resource with me ( only few resistor ) :???: Is the link below going to work...

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