BMP180 Board 3.3V O/P

[spiney]

My Arduino Uno gives 4.9V out on the 3.3V Output - presumably it has been overloaded. If I connect 5V to your BMP180 Breakout board, can I take 3.3V from the 3.3V pin to power a HIH 6130 humidity sensor? I mean, does it have an output capability? Previously the humidity sensor and the RTC on the logger have been runing on 5V with pull-ups to 5V. I have to change this to suit the BMP180.

I think your instructions for the BMP180 would benefit from a warning not to have pull-ups to 5V on SCL and SDA, despite the possibility of using the 5V supply?

[adafruit_support_rick]

You can use the 3.3V output - that's what it's there for.
The BMP180 breakout board is 5V friendly. You can connect it to 5V SDA and SCL. You shouldn't have to change anything.

[spiney]

Thank you. That was not clear to me from the information.