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Recent content by mightyconfused

  1. M

    Help required with placement of diodes on electromechanical vane display

    With some help, I managed to figure out the problem was because I didn't have the grounds connected between the Arduino and 24V power supply. Once I connected the two ground rails, the circuit started working. I've updated my diagram to show (and also fixed up my drawing errors previously -...
  2. M

    Help required with placement of diodes on electromechanical vane display

    Hi CDrive, Can you explain what you mean. I haven't heard the term display line. My understanding in terms of VCC to the chip is that: - Pin 1 requires 5V (high) to enable the bridge for motor 1 (or coil, in my case) - taking 5V off the arduino - Pin 16 requires 5V for IC Logic Power -...
  3. M

    Help required with placement of diodes on electromechanical vane display

    Addit: I should also point out that I missed putting a wire between the power supply + rail and pin 8 of the chip in the circuit. It is there in real life
  4. M

    Help required with placement of diodes on electromechanical vane display

    Thanks for your advice so far guys. But I've become mighty confused again and would appreciate your help. I've gone ahead and created a simple circuit to a single coil/segment on one of the displays. After learning Fritzing, I've created a little diagram here to show you my circuit...
  5. M

    Help required with placement of diodes on electromechanical vane display

    Thanks guys. I was under the impression that the internal diodes were not 'kickback' diodes. Given that it is 24V driving the coil, I thought that the kickback voltage might have been higher than the 36V the SN754410 is rated for. I'll go with you guys. It all does my head in. It's more...
  6. M

    Help required with placement of diodes on electromechanical vane display

    Hi Guys, Relatively new electronics newbie here - so thanks for your help :) Recently I purchased several electromechanical seven segment vane displays for a project. As you can see in the photo, each segment flips out or back by a magnetic field generated through the coil. Each...
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