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  1. John Canon

    CanBus Switching from a Reversing Bleeper Circuit?

    This is a time delay relay that I would use. https://www.summitracing.com/parts/hla-996152131
  2. John Canon

    Reversing polarity through signal from mouse switch

    This is like the life-size cardboard figures that would wave their arm all day using 2 d-cell batteries. They would use a motor or a magnet to move against gravity or a spring. At the end of each swing a lever would move to release the power and start over. They could also be smaller figures or...
  3. John Canon

    CanBus Switching from a Reversing Bleeper Circuit?

    The canbus is the digital signals talking between the various modules. It is the module that puts out the "beep signal" to the beeper. We want to use the 12 volt signal that goes to the beeper, nothing to do with the canbus. As you learned, any light connected across the beeper will flash...
  4. John Canon

    CanBus Switching from a Reversing Bleeper Circuit?

    I will try to explain with words so I don't have to draw a diagram: Is your machine 12 or 24 volts? That linked timer says 120 or 240 volts AC, so you might have to look for a different timer. A timer needs its power voltage and a trigger voltage. The trigger voltage (from the beeper) is...
  5. John Canon

    How can I fix an unformattable raw micro SD card?

    OK, skip the microwave. Just dip it in some honey and place it in the garbage bin.
  6. John Canon

    How can I fix an unformattable raw micro SD card?

    Since you are experimenting try this. Place the SD card on a plate and microwave it for 1 second. Stand back and keep a fire extinguisher handy. Then place it in your favorite formatting device. If nothing then dip it in some honey and place it in the garbage bin.
  7. John Canon

    How can I fix an unformattable raw micro SD card?

    Since you are experimenting try this. Fold a paper towel with the SD card on top and place it in the freezer for 1 hour. Remove it, dry it off with a microfiber cloth quickly and place it in your favorite formatting device. Be quick ... then format ... maybe.
  8. John Canon

    AV Receiver Pioneer SX-217

    I bet it is a broken or cold solder joint. So look closely at every solder joint where the component lead goes through the PC board. If each one is not shiny and smooth give it a quick touch with your small point soldering iron and a tiny dot of fluxy solder. Leave any SMD solder points for...
  9. John Canon

    AV Receiver Pioneer SX-217

    Somebody has to ask: you tried swapping the L/R speakers, right?
  10. John Canon

    12 volt delay timer

    You are so lucky, my scientific calculator will only show 12 digits. I am stuck with 57.2957795130, and I never know if the trailing zero rounds up or down. My Archer antenna rotator is getting confused.
  11. John Canon

    Idea for a consumer product

    I install PTZ security cameras and they have a similar function. From a joystick or a control interface the user can manually or pre-program side-to-side motion, up and down motion, and lens zoom. Most PTZs also have a function that will rotate the picture 180 degrees when the lens passes the...
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