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mercredi 27 avril 2011

Android recycling

This post is not about teaching a phone to eat all your waste :)

What to do of "old" phones

As time goes by, one (developper) gets more and more smartphones and specs evolve, leaving older phones behind in terms of daily use.

Thus the question that arises is what to do of "old" phone ?

Of course, the quick and easy answers are :

  • let it rest in a drawer for ... hum ... future use.
  • give/sell it to someone


What else ... ???

HACKING !

There is a computer in the phone ! Remember ?
Depending on the phone model and the work done for it by the wonderful community, you can :

  • install another system, like Ubuntu on a Nexus One
  • install uncommon services
  • use as a remote home-monitoring system (camera to take pics periodically and upload to web if delta)
  • Experiment (roms, ...) : nice way to learn


To give an example to that second point, it would be to install a web server with a few pages, tie it to a dynamic dns (you'll need to configure your box/modem of course)

There is web servers for Android, you are not forced to install Ubuntu + Apache :) or even to cook your own.

It all depends all your available time

That is how innovation happens.

Maybe one day, we'll see Tomcat running on a mobile phone without slowing it to death.

jeudi 24 mars 2011

(FR) Application "Contrepeteries" pour Android

Entre autres choses, j'apprécie les traits d'esprit et les jeux de mots.
Il y a quelques années, je me suis intéressé aux contrepeteries et j'ai constaté que le web n'en manquait pas, mais qu'il y avait souvent les mêmes, dupliquées de sites en sites.
J'ai initié le site http://contrepeteries.free.fr pour qu'il soit collaboratif : que les visiteurs l'enrichissent et puissent récupérer les contrep's pour les utiliser sur d'autres supports.
Il y a eu des échanges fructueux avec le créateur d'une appli pour mac, des visiteurs qui ont beaucoup participé (Merci encore à Maud du fond du champ).
Mais le site vivote à 50 visites par jour.

Comme dirait le chien parlant que je n'ai pas : ça c'est de la niche !

A partir des données de mon site, j'ai créé une appli pour smartphones Android.

Elle s'enrichira au fil des versions. Aujourd'hui (v1.1), elle permet de

  • consulter +500 contrepeteries au hasard
  • partager la contrepeterie affichée (par mail, facebook, twitter, etc ...)
  • voir la liste des évolutions à venir (affichage des solutions est l'évolution la plus demandée)


Voici le lien vers le market web https://market.android.com/details?id=org.wadael.contrepeteries

Et le QR code correspondant

Amusez-vous bien et donnez-moi votre avis.
Merci

lundi 15 novembre 2010

Drops computing

I do not intend to produce a reference material with this blog post. At most, I'll get 'prior art' reference and avoid a corporation to patent this. 

Definition

Yet another "new" term for IT. 

What I mean with this "drops computing" is "distributed computing involving both machines 'in the cloud' and smaller connected machines like smartphones".

My point is that global computing power has grown in an important way in the last years. I am thinking of all the smartphones that have been sold lately.
What a waste of power to have them mostly do ... phone calls.

Nowadays, smartphones have capacities that sound similar to desktop PCs available a few years ago.
Altough they have different CPU architecture and less storage, I think you'll agree.

Do you remember that those PCs were used for distributed calculations via programs like Seti@Home ?
Whether it is decrypting alien gossip or the human genome, computing power is here, in our pockets.

Limitations

Battery

Description 

Imagine continuous usage of the phone. Battery would drain quickly.

Solution

Calculations only happen when the phone is charging OR battery level higher then a percentage to be determined by user.


Complexity

Description

Smartphones cannot hold a complex model in memory.

Solution

Give "easy jobs" to smartphones.

Network

Description

Connectivity is not always available.

Solution

Be honest. Advise users without a real unlimited data plan not to join. 




Side note :
An architecture involving cloud computing machines and portable machines (drops) could be called "rain computing". But that would not be a very bankable term.