On 30-Jan-99 Phil Wise wrote:
>> I was interested in ELKS cos we're thinking of implementing TCP/IP on a
>> small chip. This chip (or Microcontroller) could provide a network
>> connection to any electronic appliance which can be interfaced and can
>> hence be controlled over a network. One basic application (which I
>> really need) is to control my washing machine from College !!
>>
>> Its just an idea really, so I dont know how brilliant/awful the idea is.
>> Does anyone know of any similar projects or previous implementations of
>> the same thing (there goes my nobel prize).
>> Comments and suggestions are totally welcome.
>>
> I Think its a great idea, in the future everything will have an IP
> address
> (lights, light switches etc.) so this would be the first step. Would
> Pic's
> be big enough for this (1K EEprom, 36 bytes ram, 13 io pins)?
Yes, it's possible, I have made an IP/SLIP/UDP/ICMP-stack in a PIC 16F84
with device drivers for a lot of devices. (Card reader, LCD, keyboard etc).
It is tight, especially on RAM, but you can squeez in IP-buffers and 40 chars
card reader buffer in 36 bytes if you compress all data you store!
I use them for door access control systems, outdoor terminals, network
interface for PIR detectors and receipt printers.
It's always nice to ping your PIR detector ;-)
You can check "http://www.ipsi.nu" for details.
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