Go Down

Topic: DS18B20, can I supply power to it from an Arduino 's pin? (Read 423 times) previous topic - next topic

panoss

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)

MarkT

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

panoss

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?

alesam

Nope. When 1-wire transaction is complete device automatically goes to sleep state till next transaction.

Go Up