Etching PCB

[adamw540]

I am currently Putting together a Multiwii Flight controller and I plan on etching my own Shield for My components.

What im working with:
Arduino pro mini 5v 16mhz.... clone from banggood....have datasheet
http://us.banggood.com/Wholesale-Wareho ... 68534.html

GY-521.....MPU-6050...off brand from banggood......don't have datasheet
http://us.banggood.com/Wholesale-Wareho ... 80862.html

BMP180....Adafruit....have datasheet...
http://www.amazon.com/gp/product/B00JHJ ... ge_o01_s01

GY-273....HMC5883L...Off brand from amazon....don't have datasheet.
http://www.amazon.com/gp/product/B00TMI ... ge_o01_s00

I have a couple questions to clarify before I get started.
all 3 of the sensor modules will be connected to the SDL and SCL of the pro mini. Due to the fact that some of the modules are off brand... I cant find any data sheets displaying if they have "on board" Pull up resistors and if they do.... what voltage are they pulled up to? 5v or 3.3v
Has anyone here had any experience with these modules in the past? What would be the best way to connect them? If you guys know of any wiring schematics that would be awesome..

But also. Is there any advise out there? things I should consider that I haven't already thought of as far as creating a shield for the pro mini.

I have a feeling that this flight controller will need some sort of vibration dampening integrated when it is installed onto the frame. What would be my best approach?

[wastevenson]

I have been testing those all at 5v without problem. The 521 and 273 are 3-5V. The BMP-180 is 3.6V but I seem to recall the board has a regulator and has a 3.3 line off of it (just look at your pinout) you can use to power other 3.3V components if you like.