Wearable Computer: Difference between revisions

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{{Project
{{Project
|ProjectSkills=Electronics, Mechanics, Optics, Linux
|Name=Wearable Computer
|ProjectStatus=Getting parts
|Skills=Electronics, Mechanics, Optics, Linux
|ProjectNiche=Other
|Status=Dormant
|ProjectPurpose=Fun
|Niche=Other
|Purpose=Fun
|Picture=Wearable in orange.jpg
}}
}}
I want to build a wearable computer around a raspi and this 1cm wide CRT i salvaged from a camcorder.
I want to build a wearable computer around a Raspberry Pi and this 1cm wide CRT i salvaged from a camcorder.
 
=== Pics ===
 
<gallery>
Image:Wearable_in_orange.jpg|setup test
Image:Raspi_hmd_test.jpg|first tests of the screen
Image:Spiffcorder-beta1.jpg|beta1 of the keyboard
Image:Wearable-case-test2b.jpg|beta2b of the case
</gallery>
 
 
[http://gallery.nurdspace.nl/index.php?/category/5 moar pics]
 
=== Case ===
 
* Needs notching/interlocking connection from system to batterypack
* [[File:Wearable-case-notch-Smidge204.jpeg|40px|This?]]  Resuted in http://www.thingiverse.com/thing:26195
 
 
* Different 'units'
* Raspberry + power unit is one unit, this has a display on one end, and only the needed connectors of the raspberry pi exposed.
* Battery will connect to the main unit with the thingy linked above.
* Possibility to hook up a second battery without disconnecting the first.
* Possibility to connect two batteries together to make a bigger battery???
 
 
* Power Supply frontface; http://www.thingiverse.com/thing:26814
 
=== Battery system ===
 
* http://datasheets.maxim-ic.com/en/ds/DS2438.pdf  for gauging and voltage monitoring
* http://www.ebay.nl/itm/1-PCM-Protection-Circuit-Module-For-11-1V-3S-Li-ion-Li-Polymer-Battery-pack-HX-/220967028845?pt=LH_DefaultDomain_0&hash=item3372a9486d#ht_1450wt_809  for protection of the unprotected cells
 
 
* will connect to the main unit with a 3 pin connector (+v, 1-wire data, gnd)
* there will be two 3 pin connectors to swap batteries while staying online (or maybe just run on two batteries)
* on the Raspberry Pi  there will be a attiny (or something) on uart0 to interface with the 1-wire
* main unit will get an internal 2a 5v regulator (with display woohoo)
 
 
* http://www.societyofrobots.com/member_tutorials/book/export/html/101
 
=== Screen ===
 
* crt will be mounted on cap
* beamsplitter will be mounted under the cap, reflecting visual into eye
* lenses will be needed between beamsplitter and crt for focus
* beamsplitter will be mounted on a swivel, and rotatable for higher flexibility
* another 3 pin connection : +5v, composite, gnd
 
 
=== Input ===
 
( in 2012 this part was finished already; results on http://imgur.com/a/Sm1zr )
 
* https://github.com/buzztiaan/Teenspiffchord
 
* a chording keyboard
** http://www.thingiverse.com/thing:10541
** http://chorder.cs.vassar.edu/spiffchorder/forside
** http://pjrc.com/teensy/usb_keyboard.html
** https://github.com/robnormal/teensy-chorded-keyboard , omg , almost ready to use, change code to modified nasa from spiffchorder
** http://etc.servehttp.com/spiffchorder.pdf - 5 pages with all the chords in modified nasa
 
 
* keyboard nearly finished...
* add a mouse? maybe a trackpad on top of the wrist, or a mini joystick on the thumbpad?


=== Have ===
=== Have ===


* Raspberry Pi
* Raspberry Pi
* mini CRT
* mini CRT (second found, first seems dead now :s )
* teensy (for usb keyboard emulation)
* wrist frame (soon on thingiverse)
* Beamsplitter <s>(ordered)</s>
 
(on the way)
* good power source
** needs a proper bms! gauging and maybe built-in charging?
** just needs 5V! but a lot of amps ...


=== Want ===
=== Want ===


* Beamsplitter (ordered)
* magnifying lenses
* magnifying lenses
* better case
* better case
* good power source
* some wireless card(s) on usb ?

Latest revision as of 21:25, 11 October 2015

Wearable Computer
Wearable in orange.jpg
Participants User:buzz
Skills Electronics, Mechanics, Optics, Linux
Status Dormant
Niche Other
Purpose Fun
Tool
Location
Cost
Tool category

Wearable Computer

Wearable in orange.jpg {{#if:{{{Tool}}} | [[Tool Owner::{{{ProjectParticipants}}} | }} {{#if:{{{Tool}}} | [[Tool Cost::{{{Cost}}} | }}

I want to build a wearable computer around a Raspberry Pi and this 1cm wide CRT i salvaged from a camcorder.

Pics


moar pics

Case


  • Different 'units'
  • Raspberry + power unit is one unit, this has a display on one end, and only the needed connectors of the raspberry pi exposed.
  • Battery will connect to the main unit with the thingy linked above.
  • Possibility to hook up a second battery without disconnecting the first.
  • Possibility to connect two batteries together to make a bigger battery???


Battery system


  • will connect to the main unit with a 3 pin connector (+v, 1-wire data, gnd)
  • there will be two 3 pin connectors to swap batteries while staying online (or maybe just run on two batteries)
  • on the Raspberry Pi there will be a attiny (or something) on uart0 to interface with the 1-wire
  • main unit will get an internal 2a 5v regulator (with display woohoo)


Screen

  • crt will be mounted on cap
  • beamsplitter will be mounted under the cap, reflecting visual into eye
  • lenses will be needed between beamsplitter and crt for focus
  • beamsplitter will be mounted on a swivel, and rotatable for higher flexibility
  • another 3 pin connection : +5v, composite, gnd


Input

( in 2012 this part was finished already; results on http://imgur.com/a/Sm1zr )


  • keyboard nearly finished...
  • add a mouse? maybe a trackpad on top of the wrist, or a mini joystick on the thumbpad?

Have

  • Raspberry Pi
  • mini CRT (second found, first seems dead now :s )
  • teensy (for usb keyboard emulation)
  • wrist frame (soon on thingiverse)
  • Beamsplitter (ordered)

(on the way)

  • good power source
    • needs a proper bms! gauging and maybe built-in charging?
    • just needs 5V! but a lot of amps ...

Want

  • magnifying lenses
  • better case
  • some wireless card(s) on usb ?