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Humidity activated bathroom fan [Project]
posted October 9 2013 13:53.24 by spic0m




The device consists of a DHT11 Humidity/Temperature sensor, a 12V high-flux fan and a bright 12V warning LED, hooked up to an ATmel328 microcontroller, on which the Arduino bootloader was installed. This allows for easy firmware upgrade, performed simply by plugging a USB connector to pins 1-4, plus the optional self-reset pin.


[Link: area51staff]
 
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