From: Joel Eriksson (jen_at_ettnet.se)
Date: 2002-01-21 09:20:16
On Fri, Jan 18, 2002 at 07:23:42PM +1300, Giovanni Moretti wrote:
> > I am really excited about the project and it
> > is actually the sole reason that I am starting to get
> > interested in electronics and actually ordered a starterkit
> > for programming Atmels AVR-processors today :-).
>
> Joel, the fragment in your email that prompted me to reply was the part
> about getting started with AVRs - No I'm NOT trying to sell you
> something :-), but you might like to check out the FREE basic compiler
> for the AVR micros from www.mcselec.com - It's a wonderful TurboPascal/C
> like environment for developing AVR systems and is especially good as it
> has a LARGE number of interface subroutines predefined(EG button
> debounce, serial drivers, LCD drivers 4 & 8 bit, keypad decoders, IR
> infra-red decoders ...). The free version will compiler up to 1K of code
> - that's enough to fill the AT90S2313 20pin AVR CPU (which you can get
> from www.digikey.com for about $4). For more code you have to register
> the compiler but for many projects the free compiler and the 2313 AVR is
> sufficient.
I might try it out, but preferably I would like to work under Linux
so I will try the AVR-GCC first. Thanks for the tip though! :-)
> For example, I've just used Bascom to program up a precision low
> frequency synthesised sinewave generator using the 2313 to let me
> generate 7.81Hz, 7.83Hz, 8.00Hz to accuracies of 0.001Hz to see if I can
> detect any effect from low frequency magnetic fields - really odd - I
> can feel the pulsing - only a few mA with a 5V swing if I'm close to the
> coil. This is following up on the report from Robert Beck at
> http://www.elfis.net/elfol8/e8elfeeg2.htm - does anyone on this list
> know of any of the frequencies to be **avoided** in magnetic
> entrainment?
EEG entrainment using ELF magnetic fields is _very_ interesting I
think, and it was the same report as you mention above that got me
interested. Since I am just starting out with electronics I don't
know how to get started, but I am very interested in building my
own ELF-generator. Do you have any schematics or other info that
might be useful?
> > Joel wrote:
> > It's hard to get started though, I have bought an experiment
> > board and some components to test stuff with but there is
> > much to learn before being able to do something useful. Any
> > advice you can offer a beginner in electronics..? :-) Books,
> > equipment, etc?
>
> Joel, my one recommendation above all others would be to buy a cheap -
> but calibrated oscilloscope
Ok, I will try to get hold of an inexpensive oscilloscope, a friend
of mine gave me that advice too so I have figured it is essential for
working with analog electronics. :-)
-- Joel Eriksson
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