Freetronics Arduino with ethernet question.

[shykitten55]

With my recent fore into sensors, I have one of those HCT11 - temp humidity sensor.

It runs on 3.3 v and so it isn't 5v compatible.

As the Arduinos have a 3.3v pin, and I wanted to test it on/over the network, I powered up my Freetronics Uno with ethernet.
It hasn't really been used, rather waiting for something like this to come along.

I plug in the Arduino and look for the 3.3v......   It isn't there.

Other Arduinos have the 3.3v on that pin, but not the Ethernet one.

Thoughts?

Appreciated.

[kris]

what's makes you think it's not 5v tolerant?

https://www.adafruit.com/product/386

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[STEPHEN BUCK]

Hi

 

Is RnD opening today, Monday?

 

Thanks

 

Stephen.

[shykitten55]

(Where does the time go?)

Kris,

I wasn't sure at the time of posting, but have since discovered it is 5v tolerant.

And I have since found out that the 3.3 volts on said arduino is ONLY there is external power is available.

Live and learn.