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  1. MP1

    Infrared Activated Switch

    Sorry to jump in so late, but here is an IR Toggle schematic if it will be helpful to you. MP
  2. MP1

    TIL 306

    Light to frequency converter http://focus.ti.com/lit/ds/symlink/tsl220.pdf#search='til306' MP
  3. MP1

    Telivision remote control disabler

    I have never thought about it, but it seems to me that a strong IR light source aimed at the receiver would saturate it and null any signals (pulses) coming from a remote. MP
  4. MP1

    new vero board design

    The substrate used in PC Board manufacture is not transparent. However, on the fiberglass panels, if you hold a light behind the board, you can see the traces on the other side and follow them pretty easily. If you are wanting a transparent PC Board, you can carefully drill a sheet of...
  5. MP1

    Old pentium 1 processor

    The Pentium chip that you have is a microprocessor, not a microcontroller. It is far too advanced for your purpose. You are wanting to use the chip as a microcontroller. There is quite a difference. Why purchase an expensive mother board when what you are really wanting is a PIC 16F84 or similar...
  6. MP1

    Step-up PSU with TL499A

    Kain, Since this is for a PIC programmer, is this supply to be used with a graphic display? If so, the voltage should be a negative voltage if I am guessing your application correctly. Graphic displays such as Sharp LM24014H and Epson SED1330. Just a thought. MP
  7. MP1

    Led display Digital Voltmeter question

    C6 and C7 are bypass caps for the power supply in case you need to clean it up. Leaving these off the board will not ruin your chip. There must be something else wrong with your layout. MP
  8. MP1

    economical pump controller

    It would be helpful if you would add a link to the project in your post. MP
  9. MP1

    MOVED: microprocessor

    This topic has been moved to Microcontroller Projects, Programming. http://www.electronics-lab.com/forum/index.php?topic=3580.0
  10. MP1

    site is useless

    Well, there IS quite a lot going on in this site. But it seems your frustration is due to no one on this site has found you an illegal copy of a copyrighted Ambit 0041[K01.005.C.00]Inverter schematic, which is your "only" other post on this forum. Now, I will bet that if you posted that you...
  11. MP1

    Need a Robotics Topic

    There is a microcontroller area. This is the heart of robotics. All subjects that use micros are allowed. MP
  12. MP1

    tachometer

    Your post is confusing to me. The link I posted was from google as well. Maybe you can post both links so that we can see the difference. If you are going to post the parts list, he will also need the code for the PIC. Otherwise the project will not work. Please also post the PIC code. If you...
  13. MP1

    LIGHTENING STRIKES

    Yes, I remember some of those strange Fords with the positive ground. It sure made confusion of a simple task like changing the battery.   ;D MP
  14. MP1

    which programing language to learn

    Any of these languages is equally good for communicating with a microcontroller. However, none of these languages will allow you to program the micro. The microcontroller will need a different programming language. You can find programs that use a limited instruction set in ASM, C, Basic, etc...
  15. MP1

    Need help repairing and setting up this old computer.

    Dazza, you should install Win 98 on this machine. Do not even bother with Win 95. I have always considered 98 as a bug fix for 95. I did have xp on a 386 for some time but it is very slow since you are so limited for ram. A good place to start to get boot disks and installation utilities is...
  16. MP1

    tachometer

    actually, that link did come up from google. This is why it is not always helpful to tell someone to go google. How about posting the good link that you found? I am sure source2 would appreciate it. MP
  17. MP1

    h-bridge dc motor control circuit Reworked

    heathtech, I would start by getting rid of the three 100 ohm resistors and use a small 5 volt regulator to power the digital circuitry. This might cure the problem. MP
  18. MP1

    tachometer

    Source2, The link is here: http://www.siliconchip.com.au/cms/A_102835/article.html MP
  19. MP1

    Digital Logic Problem

    Yes, he gave you backwards instructions. To have the pin low normally, then high when you press the button, you will want to connect the pin to ground via a resistor. Then with a switch connected from the input to VCC, you will have high only when pressing the switch. If the pin is floating, you...
  20. MP1

    LED display board

    Edison, in our projects section there is a project for connecting an LCD display to your computer. Perhaps it will get you started. Please check our projects section. MP
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