Hi Jacob,
This looks interesting. It can certainly be useful when Ethan is older.
For now, I think he should start with something simple. The first thing is
to train him with maybe three buttons: up, down and OK. And then go from
there. If there is existing product I'll go for it. If not, I have to
develop one myself.
Cheers,
Jinhui
On Feb 3, 2017 16:27, "Jacob Kruger" <jacob@xxxxxxxxxxxxx> wrote:
Jinhui,
There's also an adaptation of the android platform that's a bit more
expensive, but, offers a form of screen overlay - literally a form of
rubber sheath to simplify the usage of their customised form of
interface, and, it's a brand called doro claria - idea with it is that
it both offers handset protection, but, also simplifies usage for forms
of accessibility:
https://www.doro.co.uk/doro-820-mini-claria.html
In other words, it's a pretty much standard android phone, but, it can
offer a form of interface with accessibility specifically implemented,
allowing someone to work with it without having to focus too much on the
touch screen interaction as such, but anyway.
And, yes, I tested this handset for a local service provider this side,
but, issue was pricing, etc.
Stay well
Jacob Kruger
Blind Biker
Skype: BlindZA
"Resistance is futile, but, acceptance is versatile..."
On 2017-02-03 00:15, Jinhui Yang wrote:
Hi Pranav,any
I have been browsing button products on Adafruit and some other site. But
I'm lost. There are many of them. I don't know what to choose. Is there
product you suggest? It will be great if the layout of the buttons can bewhen
adjusted, including buttons being added and removed. Maybe by using one of
these (I don't know what they are called): https://goo.gl/images/nhwO8I.
I didn't know that battery could be an issue. I thought a portable USB
phone charger would work. The portability is less important if it's too
troublesome. The last time I touched an circuit diagram was in the middle
school. I may be able to do it if it isn't too complicated/difficult.
Cheers,
Jinhui
On Feb 3, 2017 02:31, "Pranav Lal" <pranav.lal@xxxxxxxxx> wrote:
Hi Jinhui,
I am using my pi for protyping a few ideas I have in electronics. It is
easier
to use than an arduino for instance because it has a lot of accessibility
infrastructure. To answer your questions about buttons, you use the gp/io
headers on the pi. You connect a button to it. You then need to detect
thepressing
button is pushed. This will happen when a pin is raised. This is a very
crude
explanation so I suggest you search for terms like
"raspberry pi" gp io switch
You can write a menu system in a python script to invoke the audio player
via
the command line each time a pin is raised in response to the user
aYou
switch.
The pi has a headphone jack so you can easily connect a speaker to it. You
can
then connect an USB microphone and have a recording function.
Your biggest problem is probably going to be the battery. You will need to
do
some battery management. Do you know how to interpret circuit diagrams?
doFoundation.
get UPS(s) for the pi so they may help but they are not particularly
portable.
Pranav
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