RE: using breadboards
- From: "Ken Perry" <whistler@xxxxxxxxxxxxx>
- To: <programmingblind@xxxxxxxxxxxxx>
- Date: Sun, 22 Feb 2009 22:56:10 -0500
What do you mean it will cost money? The first android phone did cost a bit
but the new one the Magic will come with a tmobile plan. Of course in time
these phones will be a dime a dozen. You can get the os now and put it on
other devices though.
Ken
-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Tyler
Littlefield
Sent: Sunday, February 22, 2009 7:58 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: Re: using breadboards
sounds fun. I won't be developing for the android as it's going to take
money, but I might be able to do something else that will benafit just as
much, hopefully.
----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx>
To: <programmingblind@xxxxxxxxxxxxx>
Sent: Sunday, February 22, 2009 5:55 PM
Subject: RE: using breadboards
>
> True enough and I was looking at some of the stuff coming out for the
> Google
> phone did you know a lot of the gaming companies are coming out with games
> like Guitar Hero on the Android platform? What I see in the next 3 years
> is
> a blurring of the lines of what is a desktop and what is a PDA. The
> IPhone
> has games showing up like F-18 fighter. I mention games because they are
> the heavy weight applications. What I see coming is the day when you
> carry
> your Personal computing Device with you in the form of a USB stick or
> Flash
> drive component. Then you just slap it into your home stereo for speakers
> or Flat screen TV for Monitor or if you're at school you will not need
> desktops you will just slap your personal unit into your work station and
> your off and running. Already the IPhone is starting to become
> accessible
> and so is the Android phone. It has some ways to go but it is getting
> there
> fast. Microsoft is rolling out Windows 7 which will work on those net
> books
> and if Jaws and Window-eyes don't go with the flow System access will.
> System access is selling a version for net books right now with xp for
> only
> $150 so the truth is the way to go is to develop for a platform that
> exists
> and just make it better accessible.
>
> In fact a better way to do a Braille plus like device is to get one of the
> new atom net books from dell for $349 that has a 32gb flash drive and 2gb
> of
> ram and put Orca on it and go nuts. Now I am not saying get away from
> things like the Braille plus or victor stream or Icon for the end device
> but
> you can create everything you need using the hardware and OS that exist
> then
> have one of these companies create a smaller device for you. Of course if
> you go with the Android phone which I have on my desk at the moment you
> don't really need to get smaller just more accessible.
>
> Ken
> -----Original Message-----
> From: programmingblind-bounce@xxxxxxxxxxxxx
> [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex Hall
> Sent: Sunday, February 22, 2009 7:28 PM
> To: programmingblind@xxxxxxxxxxxxx
> Subject: RE: using breadboards
>
> I have no experience here, but I would just like to say that you
> are right about developing things from scratch and foregoing the
> already invented wheel for your own. Look at the braillenote:
> this March will mark the very first time a braillenote is able to
> use any sort of instant messenger. A year and a half ago was the
> first time SSL was supported, and we have yet to see a reliable
> bluetooth stack or G wifi that does not require very specific
> settings to work smoothly. All this, and the bn is based on
> Windows, but it has a special program called keysoft on it that
> completely hides Windows functionality and implements that
> functionality only when necessary; some things are built into
> keysoft itself, like the bluetooth stack, and some are based in
> Windows, like javascript support; keysoft is what slows down the
> development of new features on the bn family of products. The
> Braille Plus has none of these problems because it is just an
> adapted Linux box with special hardware and a rewritten
> interface, which is how users can run command-line apps (sorry, I
> am a Windows user) on a Plus or Icon. Just my 2 cents.
>
> Have a great day,
> Alex
>
>> ----- Original Message -----
>>From: "Ken Perry" <whistler@xxxxxxxxxxxxx
>>To: <programmingblind@xxxxxxxxxxxxx
>>Date sent: Sun, 22 Feb 2009 18:57:18 -0500
>>Subject: RE: using breadboards
>
>
>
>
>
>>I think you again are barking up the wrong tree. So you write
> your own
>>shell. (I have done this ) What then? To make it useful you
> need
>>applications for it. You will have to write them all. You would
> be better
>>off getting involved in something like the Google Android
> operating system
>>or OE Linux at the ground level. If you do something like that
> you're in on
>>the low level of both devices and software and you can make a
> large
>>difference. The Android operating system is made for all mobile
> devices so
>>you could both start from scratch and get the support of a
> community. The
>>problem is in the past a lot of blind or disability companies
> have created
>>things from scratch and when you are all done you end up with a
> device that
>>is so behind the times no one wants to use it. Same goes for
> software you
>>will spend more time making your shell interact with things that
> are out
>>there because your users will want to chat with his friend on Msn
> or print
>>her papers to that usb printer. So look more into getting
> involved with
>>things like OE Linux or Android or things of that sort and you
> will learn
>>the same amount your thinking of while making a huge difference.
>
>
>
>>Ken
>
>
>
>>From: programmingblind-bounce@xxxxxxxxxxxxx
>>[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Tyler
>>Littlefield
>>Sent: Sunday, February 22, 2009 5:40 PM
>>To: programmingblind@xxxxxxxxxxxxx
>>Subject: Re: using breadboards
>
>
>
>>I graduate this may, I believe.
>
>>Maybe I won't go that route. I'm interested in OS design, making
> something
>>work.
>
>>I really want to just write a basic shell, though I doubt my OS
> will be the
>>next windows on the market, I want to get things working.
>
>>I started playing with something, but after I got it to boot up
> and
>>everything I wasn't able to find a way to test what I wanted to
> see if it
>>works.
>
>>Basically I'm looking for another solution besides just windows
> and linux
>>dev. I want to start playing with new technologies learning how
> things work,
>>making things go bang, etc.
>
>>Any other ideas would be great. I won't give up on learning
> about circuitry,
>>but it's hardly a career option for me.
>
>
>
>>----- Original Message -----
>
>>From: Ken Perry <mailto:whistler@xxxxxxxxxxxxx
>
>>To: programmingblind@xxxxxxxxxxxxx
>
>>Sent: Sunday, February 22, 2009 3:34 PM
>
>>Subject: RE: using breadboards
>
>
>
>
>
>>You are looking at the wrong place for making a PDA even if it
> was just for
>>you personally. I said 274 for the development board after you
> design the
>>software on that and decide what components you want for example
> the 274$
>>development board I spoke of came with y-fi, 2 usb ports, blue
> tooth, and
>>some other things like keyboard input which you would have to
> design. Of
>>course a finished product would not need all of those or it would
> be a Pac
>>mate. Anyway the thing is you buy one dev board and develop your
> PDA idea.
>>When you're done you get the company who made the dev board to
> make you 5000
>>of them and your off and running with the next Victor stream.
> Now I am not
>>talking from left field. I would suggest you call Marc at
> Levelstar and
>>talk to him. He developed the brail plus and Icon hardware and
> he will be
>>able to explain it much better when I was talking to him the
> other day he
>>said and I quote, "you may think you want to get into hardware
> design but
>>you don't believe me you don't." You really need to talk to
> people already
>>in the industry.
>
>
>
>>I also know of another device that was a Linux pda that never
> made it to
>>market because it took 6 months to get a bread board working for
> it because
>>you have to match up the daughter boards and get all the
> polarities and
>>voltages right and in this case it was a sighted person doing it
> and he
>>smoked a few components just getting it to work. After that he
> had to get
>>some kind of software to actually compile and work on it. Why
> would you
>>want to go through that kind of hell when you can purchase a
> development
>>board from either Samsung or hell there are lots of companies
> that you can
>>get atom dev boards from and I am not even sure my $274 is the
> lowest cost I
>>did see one that was $1000 for a dev board and it was a 4 inch by
> 3 inch
>>board that was pretty much a laptop in a tiny box. These dev
> boards come
>>with an operating system that works on them, heck most of them
> come with
>>both windows CE and Linux so you can choose
>
>
>
>>Shrug do what you want but the work you will have to put into a
> PDA is not
>>worth it. This is the last I will say, without any other
> questions,
>>because if you want to fight with it more power to you just know
> you are in
>>for a long hard road to get nowhere and by the time you get there
> your
>>device will be so far behind the times it won't be worth having.
> For
>>example if you are planning on making this for more than yourself
> it costs
>>in around $2000 to $5000 just to get your power supply tested and
> passed all
>>the regulations. That's just one of the things you will have to
> do with
>>your own design.
>
>
>
>>By the way as a side note, Tylor when do you graduate from High
> school?
>>This has nothing to do with what you're doing I am just
> interested.
>
>
>
>>Ken
>
>>From: programmingblind-bounce@xxxxxxxxxxxxx
>>[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Tyler
>>Littlefield
>>Sent: Sunday, February 22, 2009 4:43 PM
>>To: programmingblind@xxxxxxxxxxxxx
>>Subject: Re: using breadboards
>
>
>
>>I figured I was totally scrued up.
>
>>It's just something I want to do.
>
>>I have an idea for a PDA I would like to build that sounds fun,
> just my
>>personal little PDA. I could totally customize it, and it would
> be cheaper
>>than anything I could buy more than likely.
>
>>I also want to just learn how these things work. I've often
> found them
>>interesting.
>
>>I have been digging around for some electronics tutorials, but
> haven't found
>>all that much that doesn't consist of a ton of pictures, etc etc.
>
>
>
>>----- Original Message -----
>
>>From: The Elf <mailto:inthaneelf@xxxxxxxxxxxxxx
>
>>To: programmingblind@xxxxxxxxxxxxx
>
>>Sent: Sunday, February 22, 2009 2:34 PM
>
>>Subject: Re: using breadboards
>
>
>
>>lol, odd list to send this to, but I used to do modular
> electronics, so your
>>in luck.
>
>
>
>>firstly, that setup will not do the job, you need to find a basic
>>electronics tutorial and read it, smile, not ragging on you, just
> the truth.
>
>
>
>>there are basic principles that you haven't grasped yet.
>
>
>
>>for a battery charger, you need the 110 volt (wall) plug, a
> transformer,
>>you need a full wave rectifier (I'll explain in a minute) and
> you may want
>>some filter capacitors, though there not really needed for a bat
> charger.
>
>
>
>>now then, your first mistake is that your setup would have put
> wall type
>>current, called AC for alternating current, into resisters and
> batteries
>>which are DC (direct current) devices , that's a large shocking
> flam buoy
>>recipe.
>
>>number two, you said resisters to bring the current down, yes
> resisters will
>>drop current, but not in the way you need it to, this kind and
> type of
>>current step down is done with a transformer (that's why so many
> things with
>>removable wall plugs have that large box either at the wall end,
> or in the
>>middle of the cord, the box is mostly the transformer that
> reduces the
>>voltage and changes the amperage of the wall current.
>
>> and without the full or half wave bridge rectifier I mentioned
> before, your
>>still plugging DC parts into an ac circuit, another flam buoy!
>
>>the full wave bridge rectifier I have been mentioning is the
> component that
>>changes the AC current coming out of the transformer into DC
> current for the
>>batteries to charge off of.
>
>
>
>>here is the correct series of components for a simple power
> supply:
>
>
>
>>1. 110 volt power plug, which you attach to a specific set of
> contacts on a
>>110 AC to... (output voltage equals the number of batteries
> going into the
>>battery holder, times 1.5 volts) so if you have a battery clip
> for 2
>>batteries, then its 3 volts, if its four then it's six volts) AC
> transformer
>>(note here, all the transformer does is change the voltage and
> amperage of
>>the power, not its type, at this point you still have AC current
> running
>>through the thing).
>
>>3. to the output side of the transformer you attach the input
> leads off the
>>full wave bridge rectifier (this is the device that changes the
> power from
>>AC, to DC so its the same type of current as your batteries).
>
>>4. to the output side of the FWBR you can either:
>
>>4-1. insert two filter capacitors to screen out noise the
> circuitry
>>generates, but this is not needed in a simple charger(*note,! the
> filter
>>capacitors have to be hooked up the correct way, one end is
> positive one
>>negative).
>
>>or,
>
>>4-2. attach your battery holder, making sure you get the
> polarity of the
>>wires correct to the battery holder , or your making a loud bang
> and a lot
>>of stink and a hazard out of your batteries.
>
>
>
>>another point, this simple setup has no way, like many chargers
> you buy do
>>now a days, to tell when the batteries are fully charged, and
> stop trying to
>>charge them, and this will heat up, and eventually give you
> another ka boom.
>
>
>
>>the circuitry for a regulator is not to hard, but I can't pull it
> out of my
>>head like I can a simple power supply.
>
>
>
>>that is the basics of a power supply and it will work as a
> charger. and it
>>will not cost much, but why reinvent the wheel, unless your going
> to try for
>>some work in the electronics field? which I would not advise,
> some of the
>>stuff is extremely complex, and some of it quite delicate, and
> none of it is
>>marked in a method that can be read with our current tech
> abilities.
>
>
>
>>laters,
>
>>inthane
>
>>----- Original Message -----
>
>>From: Tyler Littlefield <mailto:tyler@xxxxxxxxxxxxx
>
>>To: programmingblind@xxxxxxxxxxxxx
>
>>Sent: Sunday, February 22, 2009 12:06 PM
>
>>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.
>
>
>
>
> __________
> View the list's information and change your settings at
> //www.freelists.org/list/programmingblind
>
> __________
> View the list's information and change your settings at
> //www.freelists.org/list/programmingblind
>
__________
View the list's information and change your settings at
//www.freelists.org/list/programmingblind
__________
View the list's information and change your settings at
//www.freelists.org/list/programmingblind
Other related posts:
