I am having problems to find out exactly how to connect sensors to make a project.
The main issue is that I cannot find a device that can drive enough analog sensor, so I need to use either SPI or I2C.
Now, I have noticed that some sensor basically has the limitation about how many of them you can connect on the same protocol, since they use a fixed address (forgive me if this is incorrect as explanation, but that's what I grasped, looking at the sparse documentation online).
Now, is there an easy way to know which sensor are able to "change" this memory address, so you can use many of them via SPI or I2C? Thanks
EDIT: As sensor I am considering these; for the sampling rate I am not sure how to calculate it; I am a SW engineer, not a hardware engineer. The application is real time collection of data related to position and rotation of an object with the equipment on. The speed of the object measured is not faster than any movement that a human can generate.
ADXL335 and 345 (the latter has SPI and I2C, the former only analog) http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf http://www.analog.com/static/imported-files/data_sheets/ADXL335.pdf
PArallax MMA7455 Accelerometer http://www.parallax.com/sites/default/files/downloads/28526-MMA7455-3-Axis-Accelerometer-Documentation-v1.1.pdf
Bosch BMA180 Accelerometer http://zh.bosch-sensortec.com/content/language4/downloads/BST-BMA180-FL000-03.pdf
L3G4200D Gyroscope http://www.pololu.com/file/0J491/L3G4200D.pdf
Invesense MPU6050 Gyroscope http://invensense.com/mems/gyro/documents/PS-MPU-6000A-00v3.4.pdf