#+TITLE: Nokia 105 (2019) modification for seniors
#+AUTHOR: Svjatoslav Agejenko
#+LANGUAGE: en

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* General
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
  COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
  DESIGNS AT YOUR OWN RISK.

+ This design is released under Creative Commons Zero (CC0) license.

+ Author:
  - Svjatoslav Agejenko
  - Homepage: https://svjatoslav.eu
  - Email: [[mailto://svjatoslav@svjatoslav.eu][svjatoslav@svjatoslav.eu]]

+ See also:
  - [[../../index.html][Other physical projects in this repository]]
  - [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]

* Project description
[[file:make.png]]

Very old people often have problems with mental abilities, touch and
vision. When the phone rings it is real issue to figure out what
button to press and hit the right one to pick up the call. It is easy
to end up in random phone menus instead that are incomprehensible for
the elderly.

Here is solution for the problem in the form of 3D printed case and
extra add-on button that is glued to the original dial/receive key of
the phone. All other buttons are rendered inaccessible on purpose.

For extra clarity, this one important button:
+ Is painted red.
+ Has exaggerated surface and relief raising above main case surface.
+ Has big white circle around it (I used [[https://en.wikipedia.org/wiki/Airbrush][airbrush]] with stencil to
  paint the circle).

** Original Nokia 105 (2019)
[[file:1.png]]

Nokia 105 (2019) allows receiving calls and dialing back the most
recent call using single dial button (cannot hang up) though. Receiver
of the call on the other end has to hang up. Prepaid SIM card is used,
to avoid accidental/unintended charges for whatever reason.

** Enlarged dial button

[[file:2.png]]

Download button:
[[file:button.png]]

+ [[file:button.FCStd][FreeCAD file]]
+ [[file:button.stl][STL file]]


I glued button to the dial key of the phone.

[[file:3.png]]



** Body and cover

[[file:body.png]]

+ Cover inside:
  + [[file:cover,%20inside.png]]

+ Cover outside:
  + [[file:cover,%20outside.png]]

+ Download:
  + [[file:body%20and%20cover.FCStd][body and cover FreeCAD file]]
  + [[file:body.stl][body in STL format]]
  + [[file:cover.stl][cover in STL format]]


** Result
End result looks like this:

[[file:4.png]]

Connectors for headphones and charging are exposed though the hole in
the body.

[[file:5.png]]