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  1. MP1

    Timer

    Herman sent this message to the moderator: >>Thanks for Your offer to help. Do You prefer Eagle format or just a screen dump. Eagle version is 3.55<< I think it is meant for you ante. Best regards all, MP
  2. MP1

    3-Axis Stepper Controller

    It all depends upon the motors you are using. If you are using 5 volt motors, you can use 5 volt for all. I have 12 volt motors. This is why I used the 12 volt buss from the power supply for the motors. A PC power supply provides 5 volt and 12 volt. Red to Black is 5 volts and Yellow to Black is...
  3. MP1

    3-Axis Stepper Controller

    On mine, I actually use the 12 volt for the steppers and the 5 volt for the digital portion of the circuit. Yes, you just connect the wires to the power lines. If you want to add fuses, it is a good idea. I cut a lot of corners on mine becuase I had to build it fast to get a large number of...
  4. MP1

    Constant current source for a low Ohm load

    I thought I would post the basic design block for a current source for those who might not be keeping up with you guys. MP
  5. MP1

    need the function generator circuit

    I didn't mean for you to buy the kit....schematic is in the pdf. Use it for ideas to create your own. MP
  6. MP1

    Led display Digital Voltmeter question

    V5, This thread was actually started from schematic (b). It is also the most common one used, since the LEDs are more common. There is not a significant difference on these two projects other than the dual LEDs. They both get the same job done.  Schematic (b) should be a little more stable since...
  7. MP1

    3-Axis Stepper Controller

    I use a pc power supply with no problems. It actually works much better than the linear one I had previously since it does not generate heat. MP
  8. MP1

    Power supply for amps

    You should post your schematic and board layout if possible so that you can get more exact help. MP
  9. MP1

    DIY WBO2

    You do not have to use the exact parts in Eagle as long as the pin out is the same. Otherwise the connections to the IC will all be wrong when you use the original. If you are going to post a bmp, you do not need a lot of resolution or a big size. If you are not sure, post the bmp and see what...
  10. MP1

    Converter LED to LCD

    Well said, NanOp. MP
  11. MP1

    Beginner Question about Ohm's Law Thanks!

    Even though your car battery has hundreds of amps capacity, your circuit is only going to use what is needed by the device that is connected to the battery. You do not need current limiting for this purpose. However, if you get a short in the circuit or somethig else happens that starts sucking...
  12. MP1

    Beginner Question about Ohm's Law Thanks!

    Not exactly. Your resistors are still going to limit the current. You just have two branches instead of one. MP
  13. MP1

    Usb Pic Programmer pickit2

    Gevv, This is an English language forum. Please use English so all members of the forum can understand your post. (Also, microcontroller items can get more exposure in the microcontroller forum) Thank you. MP
  14. MP1

    Converter LED to LCD

    This thread isn't about you and your gadgets audioguru. Please allow the subject to get back on track. This is not helpful to nametc3. He is looking for advice on how to modify a circuit. He should post more information to get that help. MP
  15. MP1

    cmos 40106 oscillator

    The formula is in the data sheet. This is the first place you should look. MP
  16. MP1

    Beginner Question about Ohm's Law Thanks!

    You also have to keep in mind the resistance of the load after the voltage passes the voltage divider network. Here are a couple of links that might help you understand a voltage divider better: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/voldiv.html...
  17. MP1

    Converter LED to LCD

    You can't see either one well in the sunlight. It is the backlight that helps you see the LCD display. The black segment LED and black segment LCD displays both are hard to see in sunlight without a light background. Perhaps you just need a backlight. Perhaps a replacement display with white...
  18. MP1

    Converter LED to LCD

    Yep. Depends on what he has. Hope we can see a schematic. MP
  19. MP1

    Converter LED to LCD

    Are you sure you didn't post this backwards? LED will normally be brighter outdoors than LCD. If it is black LED, perhaps you want to go to the brighter red LEDs. Like ante said, you will have to post the schematic before successful changes to the circuit are possible. MP
  20. MP1

    10A 1.2 to 20V power supply

    If you have a 10 amp supply, it does not mean your projects will use 10 amps. They will only take what they need. However, you should take precaution to have some limiting feature whether it is a 10 amp or 5 amp supply. MP
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