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PICList Thread
'Newbie: INTRO & PIC16F84 8 i/o controller Help Nee'
1999\08\27@231204 by fco

picon face
greetings,

       Hello everyone, my name is Andy, I work as a full
time computer teacher and my time has been spent teaching
various courses to all sorts of people and corporate clients.

       I have always liked electronics and I even took many
electronic courses in my studies, but it was a 1 year intensive
and frankly you didn't have time to get into it.. all you had was
jump from one module to another and learn as much as you can
for the exam, then go to the next module..

       so in other words, I know a lot of bits and pieces of
electronics. Although I have lots of experience running an SMT
assembly line, Pick and Place machines, Paste machines
etc.. I used to program and run various machines and I did
pre-oven inspection and quality control. I did tons of soldering
and even hand soldered surface mount circuits.

       So putting stuff together isn't a problem, but I
lack very basic electronic theory knowledge. I can read
schematics and put stuff together but I have never designed
anything myself.

       I have been purchasing many electronics books
and books on robotics and PICs. My current goal may be
ultra simple, but I need help.

       I would like to build a small circuit that would
be similar to a BASIC stamp 1. Something which I can
connect to a 9v battery and then program in ASM to
turn 8 different LEDs on and off (or anything really).

       I know Don McKenzie answered my original
post in comp.robotics.misc with a link to his dt203.
But I don't want something I have to order, I want something
I can build on a proto board and which has ONLY what I
asked for above. Just a very simple circuit that I can plug
my programmed PIC16f84 into and then press a push
button switch to run the program press again to reset.

Thats all. My goal with this is simply to be able to have
the circuit.. then concentrate on my assembly programming
and seeing what I can do with those basic i/o lines.
I feel that once I have played around with it long enough,
the rest will come very easy. I just need this basic circuit
to get me started.

I've roamed over 100 PIC links this week and haven't
found anything this simple. I am thinking of purchasing
the book  Easy Pic'n, which seems to start from the
lowest possible point (which is where I am) and apparently
contains such a circuit.

I would like to know if anyone here can point me to a
circuit like this so I can avoid having to order a 50$CA
book which will take a few weeks to arrive.

Thanks for your time and sorry about the long post.

Andy

1999\08\27@234009 by Don McKenzie

flavicon
face
"FCO Enr." wrote:
>
> greetings,
>
>         Hello everyone, my name is Andy, I work as a full
> time computer teacher and my time has been spent teaching
> various courses to all sorts of people and corporate clients.

Snip---

{Quote hidden}

Then what you need is the kitsus.com Kit 133

Kit 133. PIC16F84 Trainer. A redesign of Kit 81 which integrates a Test
circuit of 5 LEDs with the Programmer.
    The 16F84 does NOT have to removed from its socket. Just push a
pcb-mounted 4 pole/double throw switch.
    All I/O lines are brought out to pads. Version 4 top overlay shown
in preliminary documentation. 3/99.
    Top overlay & schematics. Preliminary.

Don McKenzie  spam_OUTdonTakeThisOuTspamdontronics.com http://www.dontronics.com

Don's Download Dungeon:   http://www.dontronics.com/download.html
Australian Electronics Ring http://www.dontronics.com/aering.html
Win $500USD Cash. Micro design contest:  http://www.simmstick.com

1999\08\30@071514 by Sebastián Dols

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face
part 0 590 bytes
Hope it helps, keep on PICing

Sebastian

PS1: PLEASE, check all twice, I did not assembled nor tested the board yet,
is only the PCB version of my actual 'solder&wire' protoboard, that works
fine. If some piclister wants to 'tamperproof' the schema and the board, all
flames will be welcome, and then when I've learned something more, all those
flames will be >> /dev/null ;-)
PS2: Jory&partner.. is there some written on unwritten rules about
attachments? I've sent this before asking for permission..



Attachment converted: wonderland:picboard.zip (pZIP/pZIP) (0000BD77)

1999\08\31@150437 by fco

picon face
greetings Sebastian

       I am very glad to see such a simple circuit! I already
mail ordered the Easy PIC'n book, I figure there's no harm in
that. But I will be building your circuit and I'll let you know how
it worked.

       you don't happen to have a snippet of sample .ASM
code which would simply cycle an LED on one of the outputs?

       Thanks again for the reply, I am really looking forward
to experimenting with it.

       Andy
       .....fcoKILLspamspam@spam@total.net

*********** REPLY SEPARATOR ***********

On 8/30/99, at 1:11 PM, Sebastián Dols wrote:

{Quote hidden}


'FW: Newbie: INTRO & PIC16F84 8 i/o controller Help'
1999\09\01@235855 by Gennette Bruce
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part 0 2145 bytes
----------------------------------------

Ok - here's my 0.02c.

I too teach computing, and I work in a Science Teaching facility training
Laboratory Technical Officers in such things as interfacing older ICPs,
HPLCs, etc to newer software.

I've got a VERY FULLY DOCUMENTED, simple, introductory program that uses 7
LEDs and a PIC16C84 for you (the 16F84 is just a slightly expanded 16C84,
the code will work in either).

<<flashy.zip>>
The schematic (included) CAN be dropped straight onto a bread board and the
.asm file will compile first time (with MPASM). A second, undocumented
version of the .asm file is included to show how arcane and unreadable
undocumented code can be.

You mentioned lack of familiarity with electronic components, so I should
mention that the power supply for a PIC has to be pretty reasonable if you
want it to drive loads reliably. PICs WILL blow up if you go above 6 volts,
and they will die of heat stroke if you run them continuously near their
power limits.
My circuit drives up to 7 LEDs at a time, each at 15mA, approaching the
120mA limit for the '84. The simply power supply shown is also near its
limit too. What this means is that the circuit will work well for years and
years so long as it is turned off to rest for several hours after about 1
hour's use; - it is a DEMONSTRATION circuit, not a reliable product.



       <snip>

       I would like to build a small circuit that would
       be similar to a BASIC stamp 1. Something which I can
       connect to a 9v battery and then program in ASM to
       turn 8 different LEDs on and off (or anything really).

               I know Don McKenzie answered my original
       post in comp.robotics.misc with a link to his dt203.
       But I don't want something I have to order, I want something
       I can build on a proto board and which has ONLY what I
       asked for above. Just a very simple circuit that I can plug
       my programmed PIC16f84 into and then press a push
       button switch to run the program press again to reset.


Attachment converted: wonderland:flashy.zip (pZIP/pZIP) (0000BF73)

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