Building Arduino based smart watch

Smart watches are getting popular today. They give some comfort to wive your digital life status without pulling out smart phone. All you need is to look at your watch. Is this a watch renaissance? Because watches were lost somewhere during cell phone evolution. Anyway this is a thing of discussion. Lets look at this cool smart watch project called “RetrowWatch”. I wouldn’t call this retro, because it is quite modern and slim. The watch is based on Arduino mini pro, which is small size and has all necessary I/O and processing capability. As all smart watches it has to have connectivity with Android or other devices. So there is a Bluetooth module used. Since low power is a key factor here – an OLED display seemed a nice choice. Watch is powered with single cell LiPo battery.


Arduino here takes are of all nice things displayed on OLED display and listens to UART port which is connected to Bluetooth module. Information is updated from Android device which has a special app running. It allows sending various notifications including RSS feeds, weather data, email and other. The only limiting thing here is that data stream is one way – you cannot interact to Android app from watch. But id this necessary?

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