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  1. #1
    Senior Member
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    Cycle computers controlling an electronic relay?

    I have read several pages of info on the cycle computers. A few of them have alluded to the being able to control some "function" but did not give any examples or further explanation. Would it be possible to connect a cycle computer to a horn and have it honk when, say, 30 mph was reached? or perhaps 5 minutes?

  2. #2
    `````````````` CaptainCool's Avatar
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    Are you sure you read it right? This would add significant hardware and software costs to a bike computer for a very slim portion of users. Do you have a practical use case?

  3. #3
    Seņior Member ItsJustMe's Avatar
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    You're probably going to have to build that yourself. I'd just do it with an Arduino and a separate sensor on the wheel. With that you can do whatever you like, but of course you'll be building some circuitry and doing some programming.
    Work: the 8 hours that separates bike rides.

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