Hi All
This is a odd question that I have no idea where to ask and figured someone here may have some ideas… I do realise this is a bit bonkers…
The problem:
I’m working with a student who has cerebral palsy. He can’t use his hands or any part of his body reliably to access technology - his speech is difficult to understand - so speech to text is impossible, eyegaze technology won’t work because he cannot maintain eye contact and his head control is very erratic (so head controlled joysticks and movement sensors won’t reliably work). His most reliable movement by a mile is his tongue. He can move it from left to right in his palate at all times and can adjust his tongues pressure. As a result he has been using a sip and puff switch well (like this: http://www.orin.com/access/sip_puff/index.html) with a iPad/Apple Mac connecting via a bluetooth HID switch-device (a Tecla - its a arduino based product that simply is a Bluetooth shield and some code pretending to be a HID keyboard: you can see a video here http://shop.komodoopenlab.com/pages/tecla - I worked on the Morse code ).
However despite lots of different engineering solutions he cannot keep the tubing attached to his face (if it drops he cannot access it again). Its also very un-cool having a tube to your mouth when you are in a regular secondary school. It also requires heaps of spares when bits of tube break. So we need something else.
An idea:
So I’m wondering about something a bit different and making a mould for his palate (a bit like this: http://www.articulateinstruments.com/epg-products/ but with only a L/R cable which he needs to access rather than all of those wires you see in that shot). I think I may be able to get this made. Thats potentially the easy bit. The next question is - can I have two wires on either side that would detect his tongue holding down on that palate (i.e.act as a switch) and then it sends - a Bluetooth HID keystroke to a paired device. Alternatively - I imagine a bluetooth LE device is still too big to have in your mouth - Whats the smallest size RF sender thats available? (that could then send to a separate arduino device outside of the mouth).
TL;DR: Whats the smallest RF/Bluetooth enclosed device available/possible to make?
Cheers!
Will
Hi Will, as far as I’m aware the current smallest and lightest bluetooth
module available is this. It’s the SPBT2x33C. I’ve used it (encapsulated
with glue lined heatshrink) on a vehicle telemetry project I was working on.
http://uk.mouser.com/new/stmicroelectronics/stmicrobluetooth/
Jon WilsonOn 30 Apr 2014 23:03, “Will Wade” willwade@gmail.com wrote:
Hi All
This is a odd question that I have no idea where to ask and figured
someone here may have some ideas… I do realise this is a bit bonkers…
The problem:
I’m working with a student who has cerebral palsy. He can’t use his hands
or any part of his body reliably to access technology - his speech is
difficult to understand - so speech to text is impossible, eyegaze
technology won’t work because he cannot maintain eye contact and his head
control is very erratic (so head controlled joysticks and movement sensors
won’t reliably work). His most reliable movement by a mile is his tongue.
He can move it from left to right in his palate at all times and can adjust
his tongues pressure. As a result he has been using a sip and puff switch
well (like this: http://www.orin.com/access/sip_puff/index.html) with a
iPad/Apple Mac connecting via a bluetooth HID switch-device (a Tecla - its
a arduino based product that simply is a Bluetooth shield and some code
pretending to be a HID keyboard: you can see a video here
http://shop.komodoopenlab.com/pages/tecla - I worked on the Morse code ).
However despite lots of different engineering solutions he cannot keep the
tubing attached to his face (if it drops he cannot access it again). Its
also very un-cool having a tube to your mouth when you are in a regular
secondary school. It also requires heaps of spares when bits of tube break.
So we need something else.
An idea:
So I’m wondering about something a bit different and making a mould for
his palate (a bit like this:
http://www.articulateinstruments.com/epg-products/ but with only a L/R
cable which he needs to access rather than all of those wires you see in
that shot). I think I may be able to get this made. Thats potentially the
easy bit. The next question is - can I have two wires on either side that
would detect his tongue holding down on that palate (i.e.act as a switch)
and then it sends - a Bluetooth HID keystroke to a paired device.
Alternatively - I imagine a bluetooth LE device is still too big to have in
your mouth - Whats the smallest size RF sender thats available? (that
could then send to a separate arduino device outside of the mouth).
TL;DR: Whats the smallest RF/Bluetooth enclosed device available/possible
to make?
Cheers!
Will
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