AVR-Chat

Adam Read wrote:
> 
> Brian,
> 
> I had a (very) quick look at it, and it looks fairly complex to me, 
> lots of decoding and stuff. I'm a very basic c programmer, and that 
> looks above my skill level, plus it appears you need an RS485 chip.

DS485s are small and cheap.

> Wouldn't it be easier to utilise a 2 wire interface instead? I'm 
> currently looking at the mega64, and it has the module onboard, but 
> it appears to allow multi-masters, and only needs the two pull-ups 
> on the SDA & SCL lines. I realise that it'd be a pain in the butt on 
> older chips (I've played with 8535s), but I think it may be simpler 
> to implement.
> 
> In your opinion, would it be easier/more efficient to go for TWI or 
> for ROBIN?

TWI is I2C which is only a board level thing and relies on a specific
hardware approach that is unsuitable for long cabling.