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Topic: DHT22 sensor questions (Read 659 times) previous topic - next topic

mnxvolders

Hello,
I'm currently using the DHT22 sensor. I can read the data but i don't know how to put the sensor in stand by mode because i only need the data every +-5 minutes.

mauried

The sensor automatically goes into standby mode at the end of the reading cycle, and stays that way until you read it again.
It draws approx 50 uA in standby mode.

robtillaart

possibly you could connect the 5V of the sensor to a digital pin and do digitalWrite(DHTVOLTAGE, HIGH);
place a transistor in between if the DHT draws too much current.

- http://arduino.cc/playground/Main/DHTLib -
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)


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