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Topic: DS18B20, can I supply power to it from an Arduino 's pin? (Read 936 times) previous topic - next topic


Can I supply power to a DS18B20 temperature sensor from one of the Arduino 's pins?
So that with code I 'll be able to switch it on only during measurement (to lower power consumption).
(I have connected the sensor 's VCC to pin 5 of Arduino)


Yes probably, but there absolutely no point, the standby current is 0.75µA
[ I DO NOT respond to personal messages, I WILL delete them unread, use the forum please ]


Ok, thanks.
I 'll power it from the main power rail.
It only consums high power during measurement?
And then falls to 0.75µA by itself?
I don't have to do anything?


Nope. When 1-wire transaction is complete device automatically goes to sleep state till next transaction.
Don't say "Thank you", just click on 'karma [add]' instead.

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