Let's Make Robots!

comunication

Many questions

Hi everybody. I have alot of questions and don't know how to find answers for them, so I would be very gratefull if you could tell me a precise location where to look for my answers.

So the questions are:

1. How to connect arduino severino to intellibrain board? I need to connect 3 of arduinos to one intellibrain only to send commands with coordinates so the arduinos can calculate the angles for servos to put the legs there, so i would only need to send 1 boolean to choose a leg and 3 integers to specify the coordinates.

Comunication between two MCUs

Hi all, this is the question: which is the fastest method to exchange informations between two 8-bit mcus?

I'm developing a tacho unit for a friend's go-kart. As long as I'm planning to use multiplexed 7-segment displays, I want to dedicate one micro to the multiplexing job and the other one will perform measurements and other operations ( the tacho is only a part of the things I want put on the kart )... maybe I'll use two PIC16f877a.

To have all finally working, I nedd them to comunicate, with the one telling the speed to the other. My ideas were: