Tag Archives: clock

Using the 555 timer as an external clock for the Arduino

The key here is an ‘external clock’. Rather than have the Arduino keep track of when to perform the next task, you have an outside signal that says “Now!” and fires an interrupt which the Arduino responds to. Using the … Continue reading

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Arduino Weather Clock

Sean took an antique clock an removed the mechanism, and then replaced it with an Arduino, that is programmed to check the weather on the Environment Canada website every fifteen minutes. (Sean Carney via Geeky Gadgets)

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