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chrisknight

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Posts posted by chrisknight

  1. cool, once you have your resistor value dialed in your good to go, the only problem with that design is the resistor value is dependent on the luminous intensity and current the LED's draw, hence it would be different for different types of LED signals.

    I've always liked my flasher turning completely off and on, but I guess everyone has their own taste, good luck with the project.

    I'll probably start with 100 Ohm, then work up. Is that what you would do?

    Thanks,

    Chris

  2. This is exactly what I was talking about and have done it on two bikes. The F4i turns off the running light on the side that is flashing so it works perfectly with two wire LED's or a one filament bulb.

    I cant see how that would turn the light off when the flasher is on.

    I can see it making it brighter if the +V of the flasher lead is higher than the running light lead.

    Unless you mean to say that the bikes circuitry switches power off on the running light/wire, and then on to the flasher, in which case I don't see the need for diodes at all.

    Its probably me not understanding the situation again...

  3. LED-Running-light-signals-3.gif

    Oh, Your blinking the light totally off. I see.

    I was thinking about that kind of backwards

    For some reason, I was expecting running light 100% of the time, & blinker brighter when on, like this:

    LED-Running-light-signals-4.gif

    Although, I am paranoid, so I'll probably do this with a smaller value resistor:

    tsr.jpg

    1: because I am worried about protecting the bike side of the circuit, & 2: because Its legal. :)

    Inverting the flasher is a good Idea. But, you loose your marker/running lights during your flasher "on" time.

    The 555 circuit used a 2907. I'm not too worried about it...

    This:

    ts.jpg

    Was more of a lead in to this:

    tsr.jpg

    I realize that the turn signal would be brighter than the running light because of the resistor on running light holding it back.

  4. I never thought of building something... I just expect manufacturers to think of these things on their own...

    Correct me if I'm wrong... I might not be thinking about this correctly...

    It seems as though your using the transistor as an isolation gate similar to this timer circuit I just did for my old boss...

    h555.jpg

    The gate is open until the trigger (pin 3 from 555 chip) has voltage.

    So, by that design, it seems as though the lights would still be off until you triggered the transistor.

    That makes it operate just as it did originally, but you've isolated the bikes circuitry.

    I'll have to stare at it a bit more...

    I understand this:

    LED-Running-light-signals-4.gif

    I dont get this:

    LED-Running-light-signals-3.gif

    How can you send voltage from the bike running lights wire, through the transistor without voltage also on your Base (turnsignal not activated)?

    Whats wrong with this?

    ts.jpg

    Or a resistor pre-diode on running lights lead for a dimmer running light...

    Like This:

    tsr.jpg

  5. I'm working today, but I'm not at work. Trying to get a physical server converted over to a virtual machine to run on VMWare ESXI. Testing and planning for our VMWare migration

    Fun stuff...

  6. I used to just let it fly around from under my helmet. Mine was down to just past my shoulders (Kurt Cobain style) but now its cut VERY short.

    Do what you want.

    I cut mine because having hair like that in IT is like having a tattoo on your forehead.

    Especially when its blue hair...

  7. Mars Volta - Meccamputechture

    --------------------------------------

    Hello

    I've waited here for you

    Everlong

    Tonight

    I throw myself into

    And out of the red, out of her head she sang

    Come down

    And waste away with me

    Down with me

    Slow how

    You wanted it to be

    I'm over my head, out of her head she sang

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