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?
BMP180 Board 3.3V O/P
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: BMP180 Board 3.3V O/P
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.
The BMP180 breakout board is 5V friendly. You can connect it to 5V SDA and SCL. You shouldn't have to change anything.
- spiney
- Posts: 214
- Joined: Mon Jul 09, 2012 6:35 am
Re: BMP180 Board 3.3V O/P
Thank you. That was not clear to me from the information.
Please be positive and constructive with your questions and comments.