[NTLK] newt keyboard USB adapter

Vladislav Korotnev vladkorotnev at gmail.com
Fri Sep 14 15:13:15 EDT 2012

One thing I'd also suggest to look into are PIC controllers, some of them have USB pins and a nice USB SDK to emulate almost any device. 


On 15.09.2012, at 0:51, Morgan Aldridge <morgant at makkintosshu.com> wrote:

> On Fri, Sep 14, 2012 at 8:06 AM, joe kallo <quietglow at gmail.com> wrote:
>> So it turns out there is a serial to usb app for android:
>> https://play.google.com/store/apps/details?id=slickdevlabs.apps.usb2serialdemo&hl=en
>> I have no idea if something can be done with that to give the rest of the
>> device the output from the keyboard, but it seems worth exploring.
>> That said, my goal was to end up using an original 2X00 case that holds the
>> keyboard. At this point, it would also have to hold a keyspan adapter as
>> well as a microusb/usb OTG adapter. That's starting to sound like a whole
>> lot of stuff to squeeze into the case (not to mention that it looks a
>> little cobbled. I wonder if I could splice a mini-usb onto a newton
>> keyboard cable. The keyspan adapter itself had no firmware (i.e. it
>> depended all on software) right? If so, the physical device was essentially
>> just acting as a splice anyway.
> The Keyspan USB-to-Serial adapters do have circuitry in them (probably
> a somewhat generic serial to USB chip and such) so it's not just a
> splice. The best you could do is hack the Keyspan USB-to-Serial
> adapter to have the Newton keyboard's serial cable direct attached to
> it as well as the mini-USB cable. It would save you some space, but
> you'd still need some software on the Android device to translate the
> serial data from the Newton keyboard into recognizable keyboard input.
> It sounds like the arduino option might be better for your end goal as
> you can make a small board which has a mini DIN-8 for plugging the
> Newton into, does all the translation from the Newton's keyboard
> protocol to USB HID, and provides a mini-USB port/cable which can plug
> directly into your Android device. Naturally, this is not the easier
> solution, but it'd be nicer, more compact, and require no drivers.
> Morgan
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