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  1. MP1

    Car Fuel Pump Amp Rating for Household Power Supply..

    You will need a very long extension cord to power the fuel pump while driving. ;D ;D (A little humor. Could not hold it back) ;D MP
  2. MP1

    3-Axis Stepper Controller

    David, I cannot comment on the voltage for your motors without a data sheet. However, if the wiring is not correct, the motors will not move. You should check the wiring a few times to make sure you are connected to the correct winding. If you are sending 12 VDC to a 5 volt stepper, this is not...
  3. MP1

    Audio signal generator

    Travis, What you are looking for is a VCO (Voltage controlled Oscillator) circuit to make your tone. This should then be controlled by a VCA (Voltage Controlled Amp) to change the amplification. A more advanced type of VCA is an envelope generator. This will change the amplification...
  4. MP1

    Temperature:Speed Timer Circuit?

    Thanks for the link ante. I have mostly used the YSI types. Hope you also have a Happy New Year! MP
  5. MP1

    Site's Clock

    I think Mixos should remove the clock ( time stamp) feature. Only the date matters on an International forum. That is my opinion. MP
  6. MP1

    The backwards transistor

    Kevin, do you mean a transistor that is flat on the wrong side? This would surely be put in the board backwards. (I am only joking with you) ;D MP
  7. MP1

    Temperature:Speed Timer Circuit?

    ante, a thermistor is defined as a thermally sensitive resistor whose primary function is to exhibit a change in electrical resistance with a change in body temperature. The NTC thermistor is a negative coefficient type and the PTC is a positive coefficient type. What this means is that the PTC...
  8. MP1

    + and - input/output question

    You are asking a question about a device but you have not given anyone a clue as to what it is, other than a pressure transducer. There are thousands and they have lots of differences. Some have Analog voltage outputs and even these have different ranges. Then there are the current outs. There...
  9. MP1

    Ide 2.5 to 3.5

    http://www.interfacebus.com/Design_Connector_IDE.html MP
  10. MP1

    ABS Plastic

    Rhonn, If you are wanting to make project boxes with ABS plastic, I came across a website a few years ago on this. I do not recall where it was, but the method was to use a large "oven bag" like what is used for cooking. These can withstand a lot of heat. Then you make a replica of your project...
  11. MP1

    Urgent Help

    Look to the top of the page. Click where it says "Projects". MP
  12. MP1

    Digital multimeter powered by adaptor?

    The power supply for multimeters is regulated. This is why you have the same accuracy on the day the battery is new as the day before the battery went dead. Powering a multimeter from a 9 volt DC supply would be no different than plugging a 9 volt battery into it. This is always the case with a...
  13. MP1

    Transistor as a switch

    Matt, there is a temperature controlled computer fan project in our projects section if this is what you are looking for. MP
  14. MP1

    AutoCAD Users

    The category "when needed" tells you nothing. MP
  15. MP1

    Dont understand Schematic

    There is nothing "unique" about the single pad touch switch. It has been out there for a long time. I recall seeing them in electronic music instrument kits as far back as the 70s. The two-pad touch switch just uses a different method of switching the circuit. MP
  16. MP1

    MOVED: Four Lines microcontroller based intercom

    This was a microcontroller topic http://www.electronics-lab.com/forum/index.php?board=10;action=display;threadid=2261
  17. MP1

    Beacon Finder Robot

    One method commonly used is with an ultra sonic transducer which is used as a proximity detector. For a completely simple device, you can use a switch used the same as CNC equipment limit switches that detect when the table has reached the home position. Ther are lots of levels in between these...
  18. MP1

    underwater tracking

    Do you intend to attach a transmitter on a fish or are you looking for something that will detect movement or schools of fish? MP
  19. MP1

    How to control the motor

    Why not a motor on each side and alternate the on-state? The sensors that ante has suggested could determine which is on. MP
  20. MP1

    I'm a newbie. Where can I start from?

    I see no benefit in postpone learning of micros to learn electronics basics. One can learn basics of electronics while making micro projects. In the Colleges and Universities, most do not require electronics courses as a prerequisite to learning micro processors. They usually require some kind...
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