AVR-Chat

It depends your own goal, priorities, situation, and constraints, 
there are many kind of interfaces AVR family provide:
1. SPI
2. TWI
3. UART
4. USB -> AT90USBxx
5. Wireless connectivity with IEEE802.15.4, ZigBee, 6LoWPAN
   http://www.atmel.com/products/zigbee/
   Inside Atmel AVR Studio you can find AVR Wireless application
   that explores the wireless network available nearby.

You may explain your plan here . . and BTW, have you visited
http://www.avrfreaks.net/ ?

Edy Gunawan

-------- Original Message --------
Subject: [AVR-Chat] Communication between 2 Atmel microcontrollers
Date: 	Fri, 26 Sep 2008 17:42:20 -0000
From: 	Yingdan <yingdanh@gmail.com>

Hi everyone,

I am new to here and this is my first post. And I am totally new 
to circuitry.

I only had experience of sending and receiving data between a 
computer and a microcontroller. I want to learn how 2 atmel 
microcontrollers communicate. The scenario is like this:

A microcontroller is connected to my PC, when another 
microcotroller is connected to the 1st one, it can be powered and 
send its id to the computer. Later on, I want to have multiple 
microcontrollers and my PC should be able to figure out the topology.

Many thanks,
Yingdan