Hey All.
I've finally finished my tachometer, with full 4 7 segments displays. It updates very fast, with the calculation, and showing the new RPM's.
- Later I will post the full code, and probably the hardware to convert. It's really cheap, and the only thing you have to change in it, it the potentiometer value, so that 166,6 * the number of cilenders your car have. That's the frequency of the top 5volts. For some of the guys, that doesn't have a squarewave signal generator, to adjust it with, you can grab the schematic of LM2907, and start calculating the resistor the fits the purpose.
My routine is simply the routine from the melabs, site. 4*7 Segments, multiplexed, and a calculator, plus ADC converter, the it updates, more than you'll ever get to see.
It's not finished, cuz i need to remove the first zeroes, before the RPM, cuz it is confusing.
Anyways, schematic and code will be applied this week.
May the code be with you all!
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