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  1. MP1

    hi

    oh...I thought that was a glass of water.... ;D MP
  2. MP1

    Oxodized Sodering iron

    The tip is actually causing a short circuit which acts somewhat like a welder. It creates heat from this action and that is what causes the solder to melt. This is why I suggested a battery change. It does not take much to zap a C cell. The other thing I would look for is a dirty tip or possibly...
  3. MP1

    Flex sensor

    It would be dependent upon the amount of movement (bend), but not the pressure. I do not think it would make a good one. However, if you are looking for something similar that is for pressure, here is a link to a sensor named "flexiforce"...
  4. MP1

    ADC output

    I would just use an op-amp based summing circuit to add the negative voltage to the input of the ADC. Look for summing amp use for an op-amp. There are quite a few op-amp tutorials on the web if you need to brush up. MP
  5. MP1

    ADC output

    You are on the right track, but you do not have to use a 5 volt reference. You can use a different voltage reference that would give you more familiar increments or better resolution. Look at your full scale. Since your measurement is not going down to zero, you actually are only measuring less...
  6. MP1

    Heat Guns

    Heat guns are used primarily to make the heat shrink tubing smaller so that it gives you a good seal on an electrical connection. I also use mine for softening hard plastic tubing to get it to slide onto connectors more easily on projects which have air flow in them. Makes an excellent leak free...
  7. MP1

    Oxodized Sodering iron

    Time to replace the battery. MP
  8. MP1

    TELEVISION

    You asked this in another area.... Mine has the third prong for grounding. So, I cannot give you a reason why they do not have them ;D In circuits which use the third prong for grounding, this is a safety feature so that the end user will not get zapped in case the mains return line becomes...
  9. MP1

    COLOUR T.V

    My TV has a three prong plug on it for grounding. MP
  10. MP1

    need information

    There are some projects in the projects section of this site. Click the link at the top of the page to find them. MP
  11. MP1

    3-Axis Stepper Controller

    Hope to see the results of your mill. Good luck! MP
  12. MP1

    FM WAVE PROPAGATION

    Alun, You should calm down. You did not need to say that. You are flaming, which is against the agreement to use the forum. For many members of this forum, English is not their first language. If they do not understand you, they will re-state the question. There is no cause to flame someone for...
  13. MP1

    Flex sensor

    I was trying to describe this device in a post some time ago. Finally found it again. Interesting strip that changes resistance as you bend it. It was originally designed to make the computer glove devices to simulate hand movements. Manufacturer site with data sheets: http://www.flexpoint.com/...
  14. MP1

    3-Axis Stepper Controller

    Your parallel port data pins are logic levels. The 5 volt through a pull-up resistor insures the lines are tied high until the port pin sets it low. This is a standard configuration for logic. You are not feeding power into the parallel port. However, if your software is setup to read the pins...
  15. MP1

    New.....I need help on replacing a fuse, please.

    You need the slo-blow fuse. It is a must. MP
  16. MP1

    PIC's

    It might seem like a strange place to look, but links of this sort have been posted in the "Microcontroller" area of this site. MP
  17. MP1

    SIMPLEST LIE DETECTOR

    Perhaps it was very sophisticated equipment to see if you were "Lying" on your back. ;D MP
  18. MP1

    LM317 power supply trouble

    Go to our articles section and read the tutorial for the LM317. There is a link at the top of the page. It might give you some ideas of what is not connected right. Did you get the right pin-out of the chip? V-out is the center pin and it is also the tab on the top. So if you connected the tab...
  19. MP1

    Paint &electronics.

    No, like I said, we still anodize. Just not black. The White powder that ante has mentioned is exactly what I was talking about in an earlier post. The metal must have a finish to withstand the elements of the atmosphere. Otherwise, you are just wasting your money. Not to mention, you would not...
  20. MP1

    Paint &electronics.

    ....and the moral of this story is..... Do not use plastic as a heat sink?.. ;D ;D ;D but seriously, you have a real problem accepting this, so I will quit. In my last post I was just trying to point out that the difference is not color, it is the difference in the metals. Here is a link that...
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