Beginning I2C

B

Bradley Fretwell

New Member
Hi all,

Having never used I2C before i was hoping to get a little simple advice.

I'm attempting to use a PICAXE microcontroller (as this is all i have at my disposal) and a Bosch BMP085 pressure sensor to read the current air pressure.

However i am struggling to get my head around the datasheet and how to communicate with the sensor to get the readings i need.

Any help would be much appreciated

Bradley

Sensor: http://www.sparkfun.com/products/9694
Datasheet: http://www.sparkfun.com/datasheets/Components/General/BST-BMP085-DS000-05.pdf
 
N

nick12ab

Senior Member
First of all, have you read the PICAXE i2c Tutorial?

The datasheet says the module address is: %11101110 where the last bit is automatically changed by the PICAXE for read/write.

The small table on page 17 might be the one you need to look at to get the readings.
 
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