Versatile digital speedometer uses few components

Posted on Feb 6, 2013

A speedometer measures a wheel`s rotational speed. Unlike conventional mechanical and moving-magnet designs that use analog moving-pointer displays, the electronic speedometer in this Design Idea features a digital readout and a power-saving device that uses few components. Figure 1 shows the digital speedometer`s circuit design. An Atmel AVR AT90S2313 microcontroller, IC1, drives IC3, a 16-character, two-row LCD.

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healp me   Jun 9, 2008

hi, i'm working on digital speedometer. but now i'm faceing some problem to install coding language to microcontroller AT90S2313. plz give me the coding of AT90S2313 for digital speedometer. shobuz

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