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Arduino: Device Control (open / close) using a light sensor and a relay.
This project refers to an Arduino sketch which with the help of a relay (electromechanical switch) and a light sensor can drive an external device (e.g. a household lamp, a car alarm, a home air...
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Arduino: Sending measurements from light sensor to Twitter via the Internet.
This project refers to an Arduino sketch which has the capability to send measurements collected by a light sensor to an account at Twitter to be seen by many through the World Wide Web. The...
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How to read smoothly an average value from a jumpy or erratic input sensor.
Below, is an Arduino function for reading smoothly an average value from a jumpy or erratic analog input sensor. The function reads repeatedly from an analog input, calculating a running average and...
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