From Wiki

Here's the complete proof-of-concept of an i2c sensor network.

It consists of 3 parts: the i2c slave sensor, the i2c slave gauge, and the i2c master "orchestrator". The orchestrator requests data from the sensor and sends it to the gauge. And it works! Yay! Go Arduino!

video

here's a descriptive video on youtube: http://www.youtube.com/watch?v=4gK2eJJHS-U

code

here are the sketches:

• http://jason.pepas.com/code/three-part-i2c-sensor-network/Orchestrator.pde
• http://jason.pepas.com/code/three-part-i2c-sensor-network/Sensor.pde
• http://jason.pepas.com/code/three-part-i2c-sensor-network/Gauge.pde

hex

here's the hex:

• http://jason.pepas.com/code/three-part-i2c-sensor-network/Orchestrator.cpp.hex (for atmega168)
• http://jason.pepas.com/code/three-part-i2c-sensor-network/Sensor.pde (for atmega328p)
• http://jason.pepas.com/code/three-part-i2c-sensor-network/Gauge.pde (for atmega168)