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Topic: Linkduino (Read 5 times) previous topic - next topic

Igor R

Hello,

We´re working in a project Linkduino: "Electronic Rapid Prototype Hardware".
http://cid-d2ee689f353f15bc.skydrive.live.com/self.aspx/P%C3%BAblico/Linkduino%20brochure.pdf

The main idea is to have an ECU to be able to be very quick in a prototype phase of a project.
At the moment we´re working joining a linksys router (or similar) + Arduino Mega + specific hardware to have rs485,can bus,...

We try work as easy as possible (DD-WRT, shell script,...). For sure, there are better methods (openwrt, cross-compiler,...), but it requires high skills.






Some videos:

Telemetry system in Excel:

[media]http://www.youtube.com/watch?v=OhKh4_D8-Ac[/media]




Using Linkduino as Telemetry System (own software):

[media]http://www.youtube.com/watch?v=YjPuDD_AK4A[/media]




Control from Twitter:

[media]http://www.youtube.com/watch?v=L1P_MnL3884[/media]




Embedded Web server:

[media]http://www.youtube.com/watch?v=IxavvRaCOKM[/media]




Plotting analog data with Javascript embedded:

[media]http://www.youtube.com/watch?v=XvZXY6b5-P8[/media]





You can find all the information about Linkduino in http://real2electronics.blogspot.com/. Sorry, it´s in spanish (maybe google traductor can help)





Kind Regads  ;)



Igor R


Igor R

Hi,

Another example, this time how to control a LCD from internet/lan:

[media]http://www.youtube.com/watch?v=wb2vKsKqqWo[/media]



http://real2electronics.blogspot.com/2010/01/linkduino-controlar-lcd-desde-web.html




Kind Regards,



Igor R.

nemik

Igor, this is awesome!

I made a similar setup using a Fonera (Fon2100) router running OpenWRT that talks serial to the Arduino. It works just fine connected directly.

I just wish there were some very small and cheap routers for all this that could be standardized on or sold as some bare-bones kits.

Igor R

#3
Jan 04, 2010, 10:11 pm Last Edit: Jan 04, 2010, 10:17 pm by igorreal Reason: 1
Hi nemik,

Thank-u!! I´m doing the same as you (not directly because is 3v3). At the moment, I´m triying only with DD-WRT, in stead of OpenWRT, because it has an easy configuration web page.
I also try to do the router programmation using bash scripting.

The idea is to have a "generic hardware" for the prototype phase of an electronic project (always trying the easy way to resolve things).


What have you done with arduino+Fon?




Kind Regards,  ;)




Igor R.

nemik

The Arduino (or ATMega168 chip) seems to accept 3.3v TTL serial signals just fine and the FON router I'm using reads Arduino's 5v signals just fine too. I haven't noticed any problems using both directly but it's probably better to have a proper converter like in your circuit.

I'm using OpenWRT and the ATMega168 with Arduino firmware to monitor and control a hydroponics setup for growing plants. My code is here: http://github.com/nemik/arduinoponics

I initially tried to use DD-WRT but found OpenWRT to be much easier to use and modify, plus very lightweight. Their LuCi web-admin pages are powered by a Lua-based MVC framework that I found very easy to extend. Plus Lua is very lightweight and I use it as a 'daemon' script to send and receive over serial from the Arduino. I have some pictures of it here too: http://www.flickr.com/photos/nemik/sets/72157622608195083/

The software is pretty hackish and very specific to my needs though. Something more generic like Firmata would be more appropriate for a general prototyping solution.

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