Communicating between Master and Slave

[z3t0]

Objective:

We need a method of communication between the Raspberry Pi (which is the brain) and the ATmel chips (which are the workers). Basically:

1. Controller gives raspberry pi several jobs
2. Raspberry Pi does some calculations and tells which worker to do what job
3. Raspberry Pi uses i2c (protocol) to talk to the other micro controllers

   Sources:

   • Part needed: https://www.sparkfun.com/products/12009
   • Arduino Program: https://www.arduino.cc/en/Tutorial/MasterWriter
   • Raspberry Pi Program: http://blog.retep.org/2014/02/15/connecting-an-arduino-to-a-raspberry-pi-using-i2c/

[z3t0]

One thing to keep in mind is that i2c needs to fast enough to be almost realtime