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1  Community / Exhibition / Gallery / Re: Weather Station based on Arduino on: August 22, 2014, 01:23:42 pm
Of course, here it is.

On the left, you can see measurements updated every 8 seconds and including:
day, time, temperature from two different sensors, atmospheric pressure and humidity.

On the right, it is a view of set up menu where you can define day and time.
Four little screw are in fact push buttons to access the function defined on screen (+ or -).

The display can be unplugged during the measurements, as it may not handle winter cold outside.
2  Community / Exhibition / Gallery / Weather Station based on Arduino on: August 21, 2014, 04:53:35 pm
Hello,

This is the first time I "show off" here.
I am used to the french section, but as I maintain a blog in french and english, I can easily share my project here too !

I propose a weather station built for my brother and currently used by himself for educational and research purposes.
It demonstrates how easy it is to collect environmental data with cheap materials and some basic knowledge.

This is my bigger project until now (while certainly not impressive for most of you), considering the number of components, the different communication protocol used, and giving the fact I did everything from the prototyping board until the final design that can be hanged to a tree !

Attached is a preview, and all the description, code, materials can be found here : http://thepolyscope.com/en/weather-station-powered-with-arduino/

(it includes also a Excel file with some macros to help retrieving data and plot it easily.)

Hope you will like it !

3  International / Tutoriels et cours / Re: [TUTO] Afficheur 4 digits 7 segments on: August 21, 2014, 04:38:03 pm
Merci pour ces retours ! C'est encourageant !

Promis, je reviens dès que possible avec de nouveaux montages !
4  International / Tutoriels et cours / Re: Station Météo à base d'Arduino avec code complet on: August 21, 2014, 04:36:24 pm
Merci pour ce retour !
5  International / Tutoriels et cours / Re: Station Météo à base d'Arduino avec code complet on: May 21, 2014, 04:50:16 pm
Code source, vue montage sous Fritzing, et je viens de rajouter un classeur Excel avec quelques Macros pour tracer importer les données et tracer automatiquement les graphiques correspondants !
6  International / Tutoriels et cours / Station Météo à base d'Arduino avec code complet on: May 20, 2014, 07:17:06 pm
Salut à tous,

je viens de finir un nouveau projet que je viens partager.
C'est la première fois que je fais communiquer autant de composants entre eux, et également que je finis le montage jusqu'à le souder définitivement et le mettre dans une boîte fonctionnelle. Alors je vous livre tous les détails pour le reproduire vous même, code inclus !

Ca se passe ici : http://thepolyscope.com/fr/station-meteo-a-base-darduino/

N'hésitez pas à me faire des retours !

7  Using Arduino / Displays / Re: Hack a libretto 100 CT display on: April 24, 2014, 04:11:00 pm
I found your answer quite unsatisfactory.
No one is wasting his time here. As long as we have fun.

And the argument of memory and connector number is not valid.

Here is why. As you see there, people are using interface hardware to output from Arduino to HDMI (here a Raspberry Pi):
http://codeandlife.com/2012/12/27/raspberry-pi-as-arduino-hdmi-shield/

I am not against some kind of homemade adapter to take advantage of this LCD screen, even a Raspberry. I am just trying to understand what kind of input this LCD screen need. Do you have a hint ?
8  Using Arduino / Displays / Re: Hack a libretto 100 CT display on: April 24, 2014, 03:09:05 pm
After some dissassembling, I fall on this connector.
It connects the motherboard to the screen.

Here is the part attached to the screen:

Here is the part attached to the computer:


Apparently the controller is a chip called MagicGraph 128XD from NeoMagic.

Even if it seems difficult to connect i to an Arduino (while we didn't speak about building some shield to make ineterfacable and overcome issues Arduino can't handle alone), does it look familiar to any of you ?
9  Using Arduino / Displays / Re: Hack a libretto 100 CT display on: April 18, 2014, 03:15:00 pm
I think the better option I have is to see under the hood what I can find !
Here is the beast :

I started disassembling :


For now what we have ?
- PC
- battery (bottom)
- small door that seems to give access to the hard drive (up right corner)

Quite easy for now, I will move onto next step. I'll keep you updated !
10  Using Arduino / Displays / Re: Hack a libretto 100 CT display on: April 18, 2014, 06:31:22 am
"In science, the question is not why, but why not !" (Cave Johnson)

That should be enough, but for more details, Libretto hard drive is dead, no way for me to buy a new one due to the so poor performance of the CPU (Pentium MMX, do you ever know those existed one day ? They used to count Mhz in those times !). But screen is working perfectly well and Raspberry Pi and Arduino are easy to handle and connect to various type of display.

Don't we see device hacking here all day long ? Just another one I guess ...

Any guess to the initial question ?
11  Using Arduino / Displays / Re: Hack a libretto 100 CT display on: April 17, 2014, 03:10:10 pm
Yes, exactly this one !
12  Using Arduino / Displays / Hack a libretto 100 CT display on: April 17, 2014, 03:00:41 pm
Hello there,

I recently found in my boxes an old Libretto 100 CT such as the one here:


I wonder what were the steps to go through to reuse it with an Arduino (or a Raspberry Pi, but am I at the right place for that ?).

I tried to find out similar experiences but nothing concluant.
I will try to find a spec, but I don't believe I will be lucky...

Thanks for your help !
13  International / Tutoriels et cours / Re: [TUTO] Afficheur 4 digits 7 segments on: April 16, 2014, 05:01:32 pm
Et hop : la version en anglais pour les anglophones : http://thepolyscope.com/en/7-segments-4-digits-leds-display-arduino/
Il existe une catégorie équivalente an langue anglaise dans le forum pour mettre en avant ce genre de tutos ?
14  International / Tutoriels et cours / Re: [TUTO] Afficheur 4 digits 7 segments on: April 05, 2014, 03:34:33 am
Merci !

Ca fait un moment que je ne rajoutais plus rien, ton retour me donne envie de continuer !

A bientôt pour de nouveaux montages !
15  International / Tutoriels et cours / Re: [TUTO] Arduino sur un ATMega328 sans PicoPower on: February 07, 2014, 08:08:47 am
Eh ben, vu l'explication, ça a dû être une quête épique de trouver cette solution !

Si ça te botte, je te laisse la main sur mon site (en signature) pour que tu intègres ton tuto avec un schéma ou photo de montage. Comme ça je le traduis en anglais, et on aura cette astuce en deux langues. Kestendit ?
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