I don't like the grounding arrangement on the XTAL caps ! It is quite cheap for what you get though.
Brian.
I'll live without the adjustment, the main thing is that the speed display will be in mph instead of km/h so I don’t have to ride along doing maths!....Unfortunately, I can't add an adjustment to the IC and software I've written. The reason is simple, the microprocessor only has 6 pins, with supply and ground, in and out and the two switches they are all used up
That doesn’t matter at all, I’ll keep a record of when the device was fitted so I’ll be able to work out the true recorded mileage.....It also means that the odometer also measures in miles instead of Km which will work with the trip meter but unless you know of a way to reset the overall distance will I'm afraid, muck up your total distance measurement. It will still have the original Km reading with the new miles added to it.
I see your thinking behind that, hopefully it will give the desired result.....What I'm going to do is feed it from a signal generator and monitor the output on a frequency counter. In theory, if I dial in a frequency equal to a speed in Km/h it should read on the counter in it's equivalent MPH value. For example I feed 160.09 Hz in and get 100Hz out.
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