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Make a huge 7-segment digital clock with Arduino

Make a huge 7-segment digital clock with Arduino

One of the benefits of the Arduino development platform is the ease of making an accurate clock, and the following example by Instructables member Matt_wes is not only easy to make but also quite useful.

Instead of making do with pocket-sized LED displays, this clock uses digits that are 16 cm tall and would be visible from quite a distance away. Thanks to the power required for each segment, they are switched via MOSFETS to deal with the current.

However the effort is worth it, as you can see below. This could also be used for countdowns, score-keeping and much more – just change the Arduino sketch.

To learn more and make your own version, visit the clock’s project page.

The most important part of any clock project is the inclusion of an accurate real-time clock IC.

Apart from keeping accurate time for years due to the temperature-controlled oscillator and having a tiny coin-cell for backup, it is very simple to connect to your Arduino project. A driver library allows your program to easily set or read the time and date.

Perfect for clock projects, data loggers or anything that needs to know the date and time. Furthermore it contains a digital thermometer and 236 bytes of non-volatile memory to store user settings and other data.

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Image Credit: Instructables

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