Where to learn embedded system basics for little or no money?

From: Charlie King (charlie_at_removethisitsaspamtrap.stopthatitssilly.com)
Date: 03/26/05 

Date: Sat, 26 Mar 2005 22:14:46 +0100

I've been working on a project that involved testing a toy with a
simple processor in it, that controlled how the toy reacted when the
user did things.

All of which got me interested in how the thing works at a hardware
level - something in which I have no experience at all. I would like
to learn more.

I have around me a Windows PC, a Linux PC, an EEPROM 'memory
programmer', some basic programming skills, the ability to wire a
plug, the ability to learn stuff, and broadband.

I would like to learn how to build and code embedded system type
things with the absolute minimum of expenditure. Where should I
start?

Are there emulators for microprocessor packages that I can program,
complete with emulated lights and switches, or somesuch? Are there
freeware ones? What about the attendant circuitry - sensors, buttons,
motors, diodes and such? 

-- 
Charlie
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