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  1. bigkim100

    Multiple LED Driving

    No, the whole dead laptop screen is just overkill. The led chain current limiting resistance is what Im having a problem with
  2. bigkim100

    Random digital potentiometer driving

    I have found this, which is sort of what I want to do: https://makingcircuits.com/blog/digital-volume-controller-circui/
  3. bigkim100

    Random digital potentiometer driving

  4. bigkim100

    Random digital potentiometer driving

    I am using a signal generator to control the tuning of a radio. I am attempting to replace the potentiometer with a digital potentiometer and have it randomly tune the radio
  5. bigkim100

    Multiple LED Driving

    Ok, I know how to drive individual LEDS, but when it comes to voltage and current limiting of several resistors, I dont really understand doing it correctly I have a 20 x 23cm illustration transparency in glass that I need to illuminate with leds, normally. The Illustration is divided into 3...
  6. bigkim100

    Random digital potentiometer driving

    This is to be used as random tuning of a radio, using a signal generator. The signal generators pot will be connected to this circuit.
  7. bigkim100

    Random digital potentiometer driving

    The whole thing would be best if it was relatively random, but Im starting from scratch on all elements
  8. bigkim100

    Random digital potentiometer driving

    To be honest, I do not know, this is something that will have to be played with, as the whole thing, I am attempting to do, it start from scratch in every element of the circuit
  9. bigkim100

    Random digital potentiometer driving

    This would be good, but I dont think I need that resolution
  10. bigkim100

    Random digital potentiometer driving

    This would be good...but I dont think I need that much resolution
  11. bigkim100

    Random digital potentiometer driving

    Fixed-thanks
  12. bigkim100

    Random digital potentiometer driving

    -I have been thinking of two 555s driving two 4017s, each of the 4017s outputs having a resistor. -When each of the two 4017s stops, a relatively random resistance is generated from the 2 resistances totalled together. -Relatively low tolerances on all the components may add to the overall...
  13. bigkim100

    Random digital potentiometer driving

    -That sounds best, and simple...any ideas on how its done??
  14. bigkim100

    Random digital potentiometer driving

    sounds good...now how is it done??
  15. bigkim100

    Random digital potentiometer driving

    -EGADS!!!..I dont even know what that means, but thank you. Its well over my head
  16. bigkim100

    Random digital potentiometer driving

    -correct, its a typo -I intend to use the pot that is suggested, except to the resistance required by me -The pot would be controlled by the circuit that would be suggested by the reader -Maybe the one that has up down pins would be easiest?? Thank you
  17. bigkim100

    Random digital potentiometer driving

  18. bigkim100

    Random digital potentiometer driving

    I just meant no microcontrollers
  19. bigkim100

    Random digital potentiometer driving

    Can anyone think up a way, using analogue electronics to randomly change the value of a digital potentiometer, and stop that value for a predetermined time. once that time is off it changes to another random value, and so on and so on... I was thinking of using the output of a 4017, driven by a...
  20. bigkim100

    Turning Motor Shaft indicator, or motor Stall warning!!!

    Thank you, a fine idea!
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