Search results

  1. stspringer

    Fog light circuit with atmega328 microcontroller

    Hello All, "Ok, I have "two" physical fog lights for my Harley Davidson, the fog lights are 12v LED's they each have a low beam and a high beam, just like an incandescent "dual filament bulb" in a car. The high beams draw 1.6a "each a total of 3.2a. The low beam fog lights will "always be on"...
  2. stspringer

    Challenge - See if you can solve this simple circuit diagram

    Ok I have this circuit diagram that I hooked up with 12 volt battery - 2 led's with dual terminals - low beam and high beam - high beam is 3.5 watt low beam is 1.2 watt - 1157 bayonet mount. I have 2 led flashers with battery terminal and load terminal I have a SPDT switch and a DPST switch...
  3. stspringer

    How to design a transistor circuit that controls low-power devices

    I watched this video and I have an electric motor 12 volt 7.2 watt .06 amps "load amps". I did the math for my motor copying the tutorial example for his "load" is solenoid valve spec .67 watts at 12 volts. His device had really low watts .67 Question 1: did I get it right, the math? I came up...
  4. stspringer

    Stumped on this circuit blinking led with 1 transistor

    Hello All, Hope you can help me in plain easy to understand terms, I am a newbie. Thanks http://www.electronicshobbyprojects.com/basic-circuits/blinking-led-with-single-transistor.html I followed this tutorial and used all the components specified and the led does not blink unless I touch the...
  5. stspringer

    Learning experience simulating a bad ground on a 2008 dodge charger

    Hello All, I was checking out some youtube videos on electronic issues with cars and found this great site where there was a bad ground on the, left front, parking light/turn signal circuit on a 2008 dodge charger. I reproduced the circuit on a breadboard as a learning experience. I have it...
  6. stspringer

    Explain why DMM reads 00.0 on negative side of circuit

    Hello All, Another question any help appreciated. Thanks in advance
  7. stspringer

    Please explain this resistance reading

    I have this circuit on a breadboard 9 volt battery 1 led 1 resistor sorry no schematic I am studying how to find a short a circuit With NO short created I get the following: With 9 volts power, to the breadboard, I put my DMM on the ohm setting and place the black probe on the negative power...
  8. stspringer

    Interesting circuit usb with 2 led lights with different brightness

    Hello All, I am intrigued by how this usb, with 2 white leds of different brightness works, can anyone help me understand it. First click turns on first lower intensity led, second click turns on 2nd led with greater intensity, 3rd click turns off both led's. Notice the small metal disk with the...
  9. stspringer

    1.5 volt bulb won't light in my circuit newbie

    Hello all, Here is what I have: 9 volt battery - VCC breadboard 1 - 10k resistor 1 - 2k resistor 1 - 1.5 volt light bulb I read 1.5 volts output with my digital meter, but for some reason the light bulb will not light. The light bulb is good, I can light it with a 1.5 volt battery. I get...
  10. stspringer

    traffic light australian with 2 555 timers

    Hello all, Hope someone can help me. I can only get the green led to turn, off and on, the red and yellow stay on constantly. I tried many times to no avail. Does anyone have a link to where I can see the actual wire hook ups? I am a newbie going nuts. Thanks
  11. stspringer

    Newbe Help with this schematic

    Hello All, Newbie here. I am not clear on this schematic, on how the touch metal, hooks up. Is it just 1 wire going from the 100k resistor to the touch metal? Please advise. Thank You stspringer
  12. stspringer

    newbe help with schematic to breadboard

    Hello all, I would like a schematic to breadboard tutorial with clear pictures and explanation for an American traffic light system, light duration times are not that important to me, Red stays on for say approx 1 minute then goes immediately to green, stays on say a minute, then goes to...
Top