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Recent content by atari1977

  1. A

    Opto circuit design

    Alright, thanks. I've actually got this IR phototransistor, assuming I get an ir led, do you think it will work?\
  2. A

    Opto circuit design

    Do you think the time can be increased? 10-20 seconds would be better. I've got the battery compartment wired up already, so that's not a problem. As for the sensor, I was going to go down to radioshack and pick up a phototransistor and LED.
  3. A

    Opto circuit design

    So do you know of a circuit I could use? Turning the booster on for a fixed period of time would work great, I just need a circuit.
  4. A

    Opto circuit design

    Turning it on for a fixed period of time would work great.
  5. A

    Opto circuit design

    I need an opto switch circuit that will close a circuit when its beam is broken and keep that circuit on. I'm in the process of building a rube goldberg machine, so I want this circuit to be able to detect a marble rolling through a small tube, and then turn on a few motors in the next section...
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