system
September 9, 2012, 11:16pm
2
I you go to the "Arduino Uno" part on that page, it shows how to connect and an example program.
For the pins, see the datasheet of the sensor: http://www.st.com/internet/analog/product/250373.jsp
The I2C-bus is a serial digital bus with two wires : SDA and SCL.
I2C (Inter-Integrated Circuit; pronounced as “eye-squared-C”), alternatively known as I2C or IIC, is a synchronous, multi-master/multi-slave (controller/target), packet switched, single-ended, serial communication bus invented in 1982 by Philips Semiconductors. It is widely used for attaching lower-speed peripheral ICs to processors and microcontrollers in short-distance, intra-board communication.
Several competitors, such as Siemens, NEC, Texas Instruments, STMicroelectronics, Motorola, Nordic...