Sensing and analysing various forms of data is quite simple with an Arduino, and a neat example of this has been demonstrated by Instructables member Nikus with his bike computer. It has many functions including the display of speed, temperature, distance, and so on.
The speed and distance is calculated by measuring pulses from a reed switch and magnet on the wheel of the bike, and the temperature data coming from a DS18B20 temperature sensor. Finally the data is displayed in two methods, the first being a usual LCD module - and the second is a servo with a horn used to indicate the speed as an analogue dial, for example:
This is a fun project to share with children or beginners to the world of Arduino, and also a useful end product. You can learn how it's done from the project Instructable page. And for more, we're on facebook, Google+, and twitter - so follow us for news and product updates as well.
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However we don't leave you alone to figure it all out, included is a great project and instruction booklet, plus access to a supporting web page and software examples. In other words - this is everything you need to get started for a fun range of electronics and Arduino related projects! So to get started or for more information and to order, check out the product page.