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  1. N

    Banging my head on a wall

    Thanks for the reply, although I'm not sure what you mean. I am generating a signal from a reflective optical sensor, and using a 10K pulldown resistor I send either a high(4.3 volts) or low (0 volts) to pin 7. I want pin 7 to read this signal and output either 0 or 1. But whatever changes I...
  2. N

    Banging my head on a wall

    I have designed the electronics for the ignition system for my old 49 tractor, but have come up against a brick wall with the coding for the Arduino. It simply didn't work, and after repeatedly simplifying the code to find the problem, I found that I can never get a valid input from the pin...
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    Code in setup section of a sketch

    As I said, I'm still learning, and have a long way to go:D
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    Code in setup section of a sketch

  5. N

    Code in setup section of a sketch

    Can it be done? I am learning to use the Ardunio Uno as I work on my project and believe this may be an easy way round a problem. I am working on the ignition of my old tractor and will be using hall effect sensors to fire IGBT's. My stumbling block is: what if when I turn on the ignition the...
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    Old tractor ignition upgrade problem

    Thanks for that. Timing isn't much of an issue as this thing only hits 2000 RPM flat out and it still has the original centrifugal weights in the distributor.
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    Old tractor ignition upgrade problem

    After reviewing the potential problems, such as the precision required for the magnet placement and the different Gauss from one magnet to another, which will affect the point of triggering for the Hall sensors, and the problem with the dwell time I decided to use an Arduino. This should allow...
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    Old tractor ignition upgrade problem

    So here's my project I have a 1949 Ford 8n tractor, 4 cylinder side valve with 6volt electrics, which the previous owner converted to 12volts and used a regular GM alternator instead of the generator. This is a common conversion but leads to problems with the ignition. The distributor is on the...
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    Another newbie

    Not sure where to ask, but as KrisBlueNZ offered:) I see members of the forum posting pictures of their circuit diagrams. How is this done?
  10. N

    Another newbie

    Thanks, I shall
  11. N

    Another newbie

    Hi all. I've been interested in electronics since I was a kid, but never pursued it any further than reading. After years as a cop I finally retired, and now have both the time and money to pursue my hobbies. Well more time than money, police pensions are pitiful. Looking forward to asking a...
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