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Recent content by XT.5155

  1. XT.5155

    FLOW CHART to Source Code

    is there any software which allow me to produce Source Code by only drawing flow chart. the source code would be in C++ or assembly language. thank you
  2. XT.5155

    HELP:Learning about Microprocessors & Microcontrollers from basics....

    I have similar problem with you before, however it turns out that, I need to understand "DIGITAL DESIGN" before try to understand the inner working of a microprocessor. Perhaps this could help you: 1. learn what is a register. 2. find out why it is called a REGISTER 3. how register keep...
  3. XT.5155

    Looking for an ergonomic push button

    we can make those enclosure and nice button with CNC machine, the button is connected to a simple PCB mounted mini switch. you could try browsing 3D prototype thing, they can make the enclosure from resin, no machining.
  4. XT.5155

    Electron travelling against electric field in NPN transistor

    what device can we use to measure current which generated ONLY by holes.
  5. XT.5155

    characteristics of transistor

    you are talking about 2 port network. read about 2 port network, and write here what do you think about it.
  6. XT.5155

    Temporisation with cd 4060 or /and ne 555

    is this what you want: 1. press "button" 2. delay 45 minutes 3. relay activated. if yes, you want the timer to delay for 45 minutes. I have to check the data sheet to design 45 minutes delay.
  7. XT.5155

    understanding operational amplifier

    WHY it is called Operational Amplifier: 1. it is an amplifier 2. you do mathematical "OPERATION" with it; // i.e: addition, multiplication etc. Oscillator: you can use Vacuum tube to built oscillator // assuming there is no transistor in your planet
  8. XT.5155

    Electron travelling against electric field in NPN transistor

    Thank you Wim. My 4-bit brain still need time to digest the dual of your explanation that is the flow of hole.
  9. XT.5155

    Why isn't BJT voltage controlled and current controlled???

    I always believe that understanding the physical process inside the semiconductor is ke KEY to demystifi transistor action.
  10. XT.5155

    Electron travelling against electric field in NPN transistor

    When NPN transistori is forward biased, electron in BASE region would travel against electric field in BASE-COLLECTOR junction. I read also that it is due to diffusion process which I still don't understand because it is still swimming against electric field. Kindly explain about it, also how...
  11. XT.5155

    how electronic components etc. are made

    creating transistor on SILICON base would involve such and such procedure creating transistor on ORGANIC COMPOUND would need sugar, 1/2 kg of flour, baking powder etc :roll:
  12. XT.5155

    Programming language for ATtiny2313 an ATmega8 interface

    If you want to know the detail you can use assembly language for AVR, not lontong kupang ok. :-D
  13. XT.5155

    16 bit microprocessor

    I am sure 68000 is a proper 16 bit microprocessor. How about 68HC16, would it also be considered 16 bit microprocessor, or is it still in 8-bit realm. thanks XT
  14. XT.5155

    Data Buffering inside the keyboard

    Could anyone kindly explain how the old XT keyboard, handle data buffering inside the keyboard, which is done by the microcontroller. Any specific procedure or protocol when it is handling the buffering task. thank you for clearing up my confusion. XT
  15. XT.5155

    need advice to choose Logic Analyzer

    What is the best PC based Logic Analyzer. Could you also share your experience working with PC based Logic analyzer, what to do and what not to do. thank you very much

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