BMA180 without a board

[Ceros007]

Hey guys!

I've been looking everywhere for a wiring diagram for a ProMini, WM+ and a BMA180 without a Paris Board.

I have found a wiring diagram from Barkely for a ADXL345
http://multiwii.googlecode.com/svn/trun ... on%201.png

I know I need a LLC for the BMA180.

Do I connect it like a ADXL345 and is the LM1117 required?

Why does he connect the LC from the LLC and the wire from the LM1117 together

Thank you everyone!
Seb

[miniquad]

BMA180 is a 3.3v device, so you will need the LM1117 to drop your arduino board 5v to 3.3v unless you are using any other voltage regulator to get 3.3v.
About your comment: "Why does he connect the LC from the LLC and the wire from the LM1117 together", I do not understand what you meant here. As far as I can see, he connected the LM1117 to 5v (D12) and GND as it is supposed to be and the LLC also requires 5v(Raw) and GND to be connected on the HV side, as well as 3.3v on the LV side. That is to let the LLC know the two voltages it should translate between.

[Ceros007]

Alright thank you.

I will follow Berkely wiring diagram. Now I just need to order a BMA180 and some LM1117.

Where can I find a LM117. I'm in Canada. I can order them from DigiKey Canada but for a couple of tiny regulator it's like 8$ shipping...

[Berkely]

Hi Ceros,

Is this an option for you?

http://www.rcgroups.com/forums/showthread.php?t=1261382&page=149&highlight=lm1117#post16557617

Regards
B.

[Ceros007]

Hi,
yes, I found them on ebay from a shop in Ontario.

Thanks.

[Ceros007]

Do I have to uncomment something in the code to use a BMA180, Pullups?

[aamorin]

Do I have to uncomment something in the code to use a BMA180, Pullups?

I also use the BMA180 and as far as I know you have to uncomment the #define BMA180 line; but just to be sure (I've like..24 hs in this ) let other ones to confirm this.

Cheers.