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Author Topic: The 1st homemade Nspire dock connector  (Read 9560 times)

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Offline critor

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The 1st homemade Nspire dock connector
« on: August 03, 2011, 05:14:59 pm »
Lionel Debroux has built the 1st homemade Nspire dock connector... :)

... and tested it successfully on a TI-Nspire CX! :) :)


Check the photos in the TI-Bank news:
http://ti.bank.free.fr/index.php?mod=news&ac=commentaires&id=1268
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Offline Jim Bauwens

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Re: The 1st homemade Nspire dock connector
« Reply #1 on: August 03, 2011, 05:21:40 pm »
Very nice :D
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Offline Juju

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Re: The 1st homemade Nspire dock connector
« Reply #2 on: August 03, 2011, 05:32:53 pm »
That's awesome! And it looks easy to do.
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Offline Munchor

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Re: The 1st homemade Nspire dock connector
« Reply #3 on: August 03, 2011, 05:33:38 pm »
How much does making it cost?
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Offline critor

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Re: The 1st homemade Nspire dock connector
« Reply #4 on: August 03, 2011, 05:35:47 pm »
Allmost nothing?

But remember that depending upon what you intend to do, you might need an additional TTL/USB adapter which will cost you something like 5$.
« Last Edit: August 03, 2011, 05:35:59 pm by critor »
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Offline yunhua98

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Re: The 1st homemade Nspire dock connector
« Reply #5 on: August 03, 2011, 05:38:44 pm »
wow, that's pretty sweet.
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Re: The 1st homemade Nspire dock connector
« Reply #6 on: August 03, 2011, 05:50:12 pm »
Wow, looks great :)
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Offline bsl

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Re: The 1st homemade Nspire dock connector
« Reply #7 on: August 03, 2011, 06:17:57 pm »
 I made mine out of more common materials:
A pencil eraser, 3 bare wires and a heavy rubber band
The 3 parallel wires make contact with the dock RS232 contacts,
and the heavy rubber band presses on those contacts and keeps
the dock door open at the same time....

Code: [Select]
RS232 contact wires[Rx,Tx,Gnd] dock connector side
   |
   |
   |
   |
   |  pencil eraser
   |       |
   |       |
   v       v
-------------------
|  |||             |
|  |||             |
|  |||             |
|  |||             |
|  |||             |
-------------------
    ^
    |
   solder Rs232-USB adapter wires to this side
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Offline Jim Bauwens

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Re: The 1st homemade Nspire dock connector
« Reply #8 on: August 03, 2011, 06:44:24 pm »
I just soldered directly to the pins x)
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Offline critor

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Re: The 1st homemade Nspire dock connector
« Reply #9 on: August 03, 2011, 07:46:30 pm »
bsl, could we have some photos of your dock connector which looks very interesting to me? ;)
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Offline TIfanx1999

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Re: The 1st homemade Nspire dock connector
« Reply #10 on: August 03, 2011, 08:39:39 pm »
Very nice Lionel! =)

Quote from: bsl on August 03, 2011, 06:17:57 pm
I made mine out of more common materials:
A pencil eraser, 3 bare wires and a heavy rubber band
The 3 parallel wires make contact with the dock RS232 contacts,
and the heavy rubber band presses on those contacts and keeps
the dock door open at the same time....

Code: [Select]
RS232 contact wires[Rx,Tx,Gnd] dock connector side
   |
   |
   |
   |
   |  pencil eraser
   |       |
   |       |
   v       v
-------------------
|  |||             |
|  |||             |
|  |||             |
|  |||             |
|  |||             |
-------------------
    ^
    |
   solder Rs232-USB adapter wires to this side

Wow, BSL is McGyver! :P
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Offline bsl

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Re: The 1st homemade Nspire dock connector
« Reply #11 on: August 03, 2011, 09:17:43 pm »
Quote from: critor on August 03, 2011, 07:46:30 pm
bsl, could we have some photos of your dock connector which looks very interesting to me? ;)
I got a problem with my camera driver,  but I think my description is easy to follow.....
I will try to get photos later...
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Offline DJ Omnimaga

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Re: The 1st homemade Nspire dock connector
« Reply #12 on: August 03, 2011, 11:17:24 pm »
Awesome! Someone should move this to news
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Offline Lionel Debroux

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Re: The 1st homemade Nspire dock connector
« Reply #13 on: August 04, 2011, 01:15:46 am »
Thanks critor ;)

The bulk of the work on the adapter was done by my father, who is an electronics engineer, and knows mechanical matters (bending the pins at 2.54mm step without breaking them) better than I do :)

The USB - RS232 TTL adapter would be more like $15-$20 (or 15-20€...) + transportation fees.
critor (seemingly EVAL-232R) and I (TTL-232R-3V3) use adapters based on FTDI chips, but adapters based on the widely used PL2303 and CP2102 USB-serial chips should work just fine. Oddly, the CP2102 Evaluation Kit is quite expensive compared to the FTDI- and PL2303-based kits.
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Offline mrmprog

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Re: The 1st homemade Nspire dock connector
« Reply #14 on: August 04, 2011, 02:00:15 am »
Yet another reason to get my hands on a CX...
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