RE: using breadboards
- From: "Ken Perry" <whistler@xxxxxxxxxxxxx>
- To: <programmingblind@xxxxxxxxxxxxx>
- Date: Sun, 22 Feb 2009 18:51:22 -0500
Components that are small and when I say small some transistors and
resisters are the size of a Braille dot. A chip might be the size of the
size of a pencil eraser and have 20 leads or one that has 100 leads is still
smaller than a stamp and only a little thicker. You use wax or a sticky
stuff to stick it to the board while you line up the legs. Once you line up
the legs you don't' exactly Sauder like you do normal soldering you kind of
heat up the component and let the Sauder stick to it. Every device you use
now has flat packs like cell phones to even the pac mate and Braille plus.
Things just keep getting smaller
Ken
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Bryan Schulz
Sent: Sunday, February 22, 2009 6:22 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: Re: using breadboards
what are flat pack parts?
Bryan Schulz
The BEST Solution
www.best-acts.com
----- Original Message -----
From: Ken Perry <mailto:whistler@xxxxxxxxxxxxx>
To: programmingblind@xxxxxxxxxxxxx
Sent: Sunday, February 22, 2009 4:36 PM
Subject: RE: using breadboards
Well soldering blind can be done with the larger components but just get
your first flat pack set and try to line up all those little legs and if
you're not using flat pack components now days you're in the dark ages.
Ken
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Bob Kennedy
Sent: Sunday, February 22, 2009 4:19 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: Re: using breadboards
Good points Ken. And the problem with soldering blind? I know it can be
done, I do it quite often. But not in such tight places or where heat can
destroy something. But I'll never be the one to say it can't be done.
If you figure out color coding make sure to share it? Unless it's having
someone tell you the colors...
----- Original Message -----
From: Ken Perry <mailto:whistler@xxxxxxxxxxxxx>
To: programmingblind@xxxxxxxxxxxxxx <mailto:programmingblind@xxxxxxxxxxxxx>
Sent: Sunday, February 22, 2009 4:07 PM
Subject: RE: using breadboards
Ok Tylor this is what I did in the military before I lost my site. I am
going to only say this once and people can jump on me all they want. You
are wasting your time. When it comes to coding I was willing to help if
your thinking of building your own circuit boards blind you are just plain
wasting your time. I am not saying doing it is impossible I am saying doing
it is a waste of time. Let me say it one more time. Waste of time. If you
want to design some small device that is fine use the single board
development kits that are out there that come with everything you need on a
single board and just code for it. Then once you have a product developed
on that board you pay a large company that does this to pair your device
down to what you need.
You said you understand polarity that is great do you understand pnp
transistors, logic chips, can you look at them and tell which side the
positive goes on? Can you look at a resister and tell the color coding
without help? Can you read the chips codes and tell what they are can you
see which direction has the power pins on it? You will blow up more
components than it's worth and when you get right down to it you will be
able to do only the most simple circuits blind with a bread board. So you
will be able to design almost nothing for a cost of a lot of hours. Sure
you will learn something but the question is is it a good expenditure of
your time?
You could spend $274 on a single board development kit and have something
working tomorrow. Something that has already went through the testing for
power supplies and electric signal interference. Whereas what you would
build on a bread board might just make good smoke the first 90 times.
Ken
Ken
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Tyler
Littlefield
Sent: Sunday, February 22, 2009 3:06 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: using breadboards
Hello,
I'm looking to start using breadboards to create some small things.
I'd like to start off with something small, possibly a battery charger or
something similar.
I found a small tutorial on instructables, but not totally sure how to get
going.
It explained how things work somewhat, but not accurately enough for me.
It mainly used pictures to explain, which didn't do me a whole lot of good.
Any ideas on how I can set this up?
I understand the polarity--hooking one negative end to the positive etc so
that the circuit forms a loop, I'm just not sure how to do what I want.
So, here's my idea.
If I figure out the layout, I can set up a power cable going from the outlet
to the breadboard.
Then I can place in jumpers to bridge the gap.
I can take the 120 volts down to 9 with some resisters (?) and hook a
battery pack to the other end that will charge the batteries.
I'm thinking I'm way off, but... ideas would be great.
If I could, I'd like to set it up so it'd charge like 4 at once, then I
could cut down the 120 to 36. Possibly put in a heat sink to keep it from
getting really hot.
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