Search results

  1. MP1

    Blinking LED

    Are the ones that hotwaterwizard posted good for your need or do you need more? There are many variations of the blinking LED using many different types of components. It is also the first project most students make with a microcontroller chip. If you have more specifics, let us know. MP
  2. MP1

    PS1 Car supply

    AJB2K3, Ante's suggestion is a very good one and should work fine. If that part is not available to you, here is a converter circuit that is close. This is only a start and you will have to make some changes. In fact it is a basic building block for a simple step down regulator that can have...
  3. MP1

    Servo Throttle Control

    thanks ante. Hello mbedford. Here are some of my thoughts as well: I am assuming this a larger size boat with some type of transmission between the engine and propeller? Some have load shifting capabilty, in which case, RPM of the engine is not necessarily the RPM of the propeller. On this...
  4. MP1

    PSX Mod Chip

    Rhonn, I do not recall having to convert to hex to program the chip. I think the universal programmer that I used took care of this. It has been some time since I got this file, so I really do not remember. You can get a bin2hex converter program here...
  5. MP1

    Capacitor

    Quantum, The heat of a soldering iron can damage any electronic part if it is allowed to get too hot. All electronic parts have a heat specification. When you exceed it, you will damage the part. Sometimes this damage shows up as a catastrophic failure and sometimes it just shortens the life of...
  6. MP1

    0-30 Vdc Stabilized Power Supply

    Kobus, In regards to the LED, you could also put it on the primary side of the transformer. Hotwaterwizard has posted a diagram here on the site showing how to do so. Let me know if you cannot find it and I will search. MP
  7. MP1

    darlington optocoupler

    Can you get NTE parts? 4N32 is replaced with NTE3083. MP
  8. MP1

    0-30 Vdc Stabilized Power Supply

    Capricious, It is a very organized and clean looking unit. Very nice work. Thanks for sharing the results with us. MP
  9. MP1

    PSX Mod Chip

    I am not sure. I have not seen that error. Did you use the address in the txt file? That was the only problem that I had when burning the chip. I had to set the program address. MP
  10. MP1

    darlington optocoupler

    Here is a data sheet for the obsolete part. Perhaps you can match it to something that is available to you. MP TIL197-198-199_Opto-Isolator.pdf
  11. MP1

    PSX Mod Chip

    Here you go Rhonn. It is in the zip file. This is the binary file, but you can make it a hex file if you need. I no longer have the wiring diagram. I hope you have it. MP modchip.zip
  12. MP1

    3-Axis Stepper Controller

    Alberto, here is an internal diagram of a 6 wire stepper. You can measure the resistance of the different combinations of wires to see which wires go to which coils on your motor. The power supply connects to the center tap of both. When the outside of the coils are grounded one at a time in...
  13. MP1

    matrix point(microcontroler programming)

    It seems to me that you are wanting to change a 7 digit output to a 35 digit output. If you are displaying the same characters, why not map out the 5X7 and connect the Dot Matrix as seven sets of 5 LEDs on the same output? Each of the segments of the 5X7 display can be represented with 5 LEDs...
  14. MP1

    3-Axis Stepper Controller

    alberto, I do not have any pictures. What would you like to know about? Perhaps I can take some. MP
  15. MP1

    IR Remote Control Tester

    Xenobius, after testing the circuit, you could upload it to the projects section. MP
  16. MP1

    Switching power supply

    vainajala, Is the PNP transistor used as a switch? Normally in a PNP use of a transistor as a switch, the value of R2 = Supply Voltage / ( Maximum Current Required / Minimum HFE * 1.3 ) You can find the HFE from your data sheet on the transistor. Resistor R3 is not essential to the circuit but...
  17. MP1

    was Re:Ir-remote Now is: Op Amp discussion

    It is not your sources who are wrong, it is you. The application is not a linear use of an op-amp. MP
  18. MP1

    Wannabe Secret agent man?

    That was a pretty negative comment. Actually communication devices use very little power from batteries. MP
  19. MP1

    was Re:Ir-remote Now is: Op Amp discussion

    ...which is not missing in the first place. MP
  20. MP1

    was Re:Ir-remote Now is: Op Amp discussion

    audioguru, since when does this forum give you the right to tell people when they can join a discussion? No one has to prove anything in this forum to discuss electronics. >:( The bottom line is this: I think you just trampled on a new member and sent him away pissed off simply because he...
Top