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31  Using Arduino / Project Guidance / Re: Multiple Due/Uno Project. Best Network/Comm Topology for Distributed Control. on: March 14, 2014, 05:14:43 pm
Two arduinos have motor shields. one has an lcd shield. one has a GSM shield...
So, I'll have to wrestle with sheild compatability issues if I put an Ethernet or Wireless shield on..

Haven't decided on a wired or wireless solution. Speeds not an issue, so even some kind of multidrop serial network would suffice. Just don't know of any such peer network protocols for Arduino.

(if only the DUEs  had implemented the native Ethernet of the SAM3X chip and included a full PHY brought out as a RJ45 header...I'd migrate every Project to a DUE and connect them all via Ethernet.).



32  Using Arduino / Project Guidance / Re: Multiple Due/Uno Project. Best Network/Comm Topology for Distributed Control. on: March 14, 2014, 11:36:14 am
Clarified what I was looking for above.
33  Topics / Education and Teaching / Re: My Arduino documentation to share with others on: March 12, 2014, 06:13:50 pm
This was very nice of you to share!!

I'm at the planning stages of opening a MakerSpace here in Alamos, Sonora, Mexico. Anthing we build that requires a heart/brain will use Arduino. Material like this is really helpful.

Do you have any objection to us making Spanish translations of this material? (of course we will make it availble to all.).
34  Using Arduino / Project Guidance / Multiple Due/Uno Project. Best Network/Comm Topology for Distributed Control. on: March 12, 2014, 04:16:57 pm
Fun Project. Have 7 or 8 UNO/DUEs each doing their own thing independently. Looking to coordinate a few activities between them.

What I'm asking for are recommendations for the best Network/Comm Topology to apply to allow for some Supervisory Control, Distributed Control and Data Acquisition between the Arduinos. I will have special purpose shields on each UNO/DUE, so I need to adopt something that I should be able to apply universally to each 'Node' on my 'Network'. Some sort of Peer Networking recommendation, with perhaps an example.

I'm not ready to adopt any Galileo, Yun, Tre, Rpi technologies. Just want to go with what's available in the UNO/DUE community.
35  Topics / Science and Measurement / Re: Colorimetric CO2 Analysis on: March 04, 2014, 11:28:12 pm
Have you considered one of these?

https://www.atlas-scientific.com/product_pages/sensors/env-rgb.html

Very nice product. Simple serial interface with sample code for Arduino.
I have one and I've verified it sees Red, Green, Blue...

Peter
36  Products / Arduino Due / Re: Arduino Due Programming Language - Graphics Support on: March 03, 2014, 01:25:15 pm
Have a look at this effort:

http://forum.arduino.cc/index.php?topic=164788.0

Due GUI.
37  Community / Website and Forum / Re: Problem with main Arduino website 8 Feb 2014 on: March 03, 2014, 01:17:35 pm
The token?-820fs.,dw80w90-d suffix appended the URL has gotten much worse.

I now have to close ALL browser Windows. Flush all caches.
Enter Arduino..
Log in.
Go to Fórum..
Get the token nonsense..
Hit F12, Hit the paintbrush palette object, open a new tab, close the existing tab.
Got to Fórum again..

Repeat last 3 ítems about 4 to 6 times in a row....

Eventually, I can enter the Fórums... Logged IN... which means I get to particpate.

If I visit any of the site outside of the fórum..... (like Reference or Buy).... I get the return of the Token errors.....

And I repeat EVERYTHING I typed above... Which is fun If I've opened and logged into many other sites.  smiley-sad.

None of this happens on my WIndowsPhone 8, but fórum participation isn't much fun on a 4.5" screen.
38  Using Arduino / Sensors / Re: integration of industrial sensors (ultrasonic) in Arduino on: February 18, 2014, 11:17:03 pm
How deep/wide is the river? could you setup a parshall flume to measure the flow? You could use an inexpensive measure tape in lieu of an ultrasonic sensor if we are talking about small amounts (under 20cm of rise in the flume)

http://en.wikipedia.org/wiki/Parshall_flume

I mention that 20cm limit as sparkfun.com has an inexpensive level tape that can be setup as a variable resisitor.  Max voltaje is 10v. See this specification data sheet:

http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Sensors/ForceFlex/eTape%20Datasheet%2012110215TC-8_040213.pdf
39  Products / Arduino Due / Re: Arduino Due or Beaglebone Black on: February 12, 2014, 07:25:45 pm
Doug,

There is this effort by serveral Fórum members:

Connecting an Ethernet PHY to Arduino Due
http://forum.arduino.cc/index.php?topic=142908.90

Peter


40  Products / Arduino Due / Re: Arduino Due or Beaglebone Black on: February 10, 2014, 12:50:39 pm
It's interesting to note that the upcoming Arduino TRE is almost a unión of UNO and BeagleBone Black.
It will contain an UNO AVR core as well as a R3 pin layout in the interior for connecting UNO shields.
However, it also has a Texas Instruments 32-bit Sitara ARM Cortex-A8 processor with GPIO and Comm/HMI/Storage interfaces tied to it.

Likewise the Galileo from Intel contains an UNO AVR core with R3 pin layout and a second processor, the 32-bit Intel Quark (a Pentium derived SoC) driving comms and a host of other interfaces.

Makes me question the future of DUE's Cortex-3M core. I haven't heard a thing about it in a year from the Offical Keepers of Arduino... just us hobbyist/developers that have struggled with it and the Beta IDE for more than 15 months. Is Arduino staying UNO all the way, and just borrowing from others for some of the advanced comms/video/audio/storage interfaces?
41  Topics / Robotics / Re: uArmⅠ:An open source robot arm on: February 07, 2014, 11:08:48 pm
Gentlemen,
I signed up to receive one of your full kits with the gripper and suction options via sponsorship of your KickStarter campaign.
Looking forward to seeing continued development.

Again, really nice work. 1st class presentation of your product/project. Would love to get our students at Espanglish Institute / Guaymas Workshop developing products of that caliber.  Wow!
Peter


42  Products / Arduino Due / Re: Due GUI (Graphical user interface) - [now community project] on: February 04, 2014, 01:50:00 am
Getting back to DUE. I started gathering my DUE, Taijuino and CTE stuff back as Daniel and a few other students lost interest in the GUI development for the DUE. Seems I have a total of five of these SSD1963 LCDs, shields And DUE/Taijuinos in my possession.
43  Topics / Robotics / Re: uArmⅠ:An open source robot arm on: February 03, 2014, 03:28:21 pm
This would make a fine foundation for a small Boom Crane. Replace the Gripper/Suction axis with a Hook and Line. The Parallel Arms would perform the Boom/Jib functions. Replace the end with a TIp sleeve and run a line to the Base, where the Winch would be installed. Rotating Base is nice. It's far more flexible than required, but nevertheless a great starting point for a design. My intended purpose requires about 10meters of line that could lift 200grams partially extended.

You guys are modest and haven't plugged your kickstarter campaign in this thread (if you did, I missed it). But, honestly so many will be using your design and code, so it's a good idea to let other hobbyist know how they might support your efforts.  (If linking ot kickstarter campaigns is forbidden, my apologies).
https://www.kickstarter.com/projects/ufactory/uarm-put-a-miniature-industrial-robot-arm-on-your?ref=live .

Nice work gentlemen.
44  Using Arduino / Sensors / Re: Aquarium sensors - Warning newbie question ahead of you on: February 03, 2014, 11:49:12 am
de nada.
I found the Arduino Reef Controller LInk: http://reefangel.com
A fórum search with the keywords Aquarium pH (as one phrase) yields relevant results as well. You'll find specs, code, component sources, etc.. Lots of shared experiences to draw from on these fórums.
45  Using Arduino / Sensors / Re: Aquarium sensors - Warning newbie question ahead of you on: January 31, 2014, 04:29:22 pm
Daniel,
I'm building one. but, before I begin, I'm  giving you GOOD links. Top notch work. Nothing I'm typing below can help you more that the work of the three links I'm citing.  (my content below is what I'm doing, or what I want to do, not how I'm doing... no code...no schematics... the fórums are full of 'intentions', true?)

The best source for help is here: http://forum.arduino.cc/index.php?topic=140740.0 (Automated Reptile Control System) You'll find schematics and sample code too.

The best source for products is here: https://www.atlas-scientific.com/embedded.html (Embedded Electronics for Water Quality Instruments).

There's also a guy down in Brazil: http://reefcorner.org/forum/topic.asp?TOPIC_ID=135383&whichpage=2 (Reef Controller) It's in Portuguese, but you should still be able to figure out what he's doing.

Ok, If you want to read a bunch of history, or about stuff I've bought and things I've proven out, you can read below...But the links above have the real meat.

My Aquarium Controller is actually a derivative of a Comprehenensive Water Quality Monitor and Transmitter that  I'm developing. The differentiator is that I'm working on OPC for integration to SCADA systems and MODBus over Serial/Ethernet for PLC integration for ALL sensors. No piecing together multiple protocols, multiple transmitters, multiple topologies, etc.. I make a living piecing together stuff and extracting data from it, but I think it might be nice to offer some of my customers a more integrated solution for some Water Quality Monitoring scenarios. It's simply monitoring and data acquisition, because in industrial/municipal settings, it's better to leverage the hardened controls already in place (my opinión). Obviously, I need some sort of interface for setup/configuration too (local lcd or website). I don't know if anyone will ever want such an all inclusive product, so I might as well make sure I can enjoy it and use it later. Hence the other two uses/derivatives below.

Residential/Consumer use I am expanding it to Monitor and Control of Aquariums. (Using I2C to expand outputs 110AC, 24VDC, PWM 0-10V, 12-24V, etc...) Here, a local interface is desireable (800X480 5" LCD) and/or Web Interface and/or Cel Phone BlueTooth interface. I'll never sell it. But someone else might want to build one like it.

A third application is Remote/Isolated Environmental Monitoring Station. This is where energy conservation, solar, gps and wireless (wifi/celular gsm) connectivity come into play. I'm excited about this one too.

Obviously the HARD stuff is all of the COMMS and Data Acquisition. Admittedly, it's all over my head and I'm quietly struggling with simple sketches for BlueTooth, GSM, Wifi and Ethernet Shields on an UNO at the moment to grasp all of that.  Then it's a matter of getting it to work with DUE.

So, when it came to Sensors and I/O. I didn't want to re-invent the Wheel. I did buy the shields from PracticalMaker. His MacroDuino stuff is interesting, but I didn't want to learn another framework. Sticking with pure C or C++ lets me easily burrow ideas from others. (I fancy myself as more of an integrator than a creator....for sure!).

So, I got in touch with Atlas-Scientific out of New York City (www.atlas-scientific.com). Brilliant group of young guys. New Yorkers, so they cut to the chase, but are friendly. They've developed a fair number of integrated circuits (stamps) that basically serve as intelligent transmitters that communicate serially (Rs232/TTL); even producing an inexpensive MUX to really expand the network of instruments. They used them in their own solutions as they are/were doing a fair amount of environmental monitoring for the State and City of New York. Recently, they packaged these up and made them available for sale to the public. Honestly, I think I've bought 1 to 2 (sometimes 4) of everything they sell. Sure, my BOM for my initial prototype is through the roof by purchasing solutions, but that's okay.

So, I'm monitoring Temp, pH, ORP, Conductivity, Salinity, Total Dissolved Solids, Dissolved Oxygen, Color, Flow, Level, Ambient Air, Humidity, Barometric Pressure. Even trying a neat data logger. Power monitoring, power conditioning, etc.. Some of the stuff doesn't serve much of a purpose anymore. For instance the Colorometer was an idea I had for detecting petroleum traces using optics with treated lenses....given up as the science is way, way beyond my capabilities. But hey, I have a few of these sensors now, so they might as well go into my prototype. I'm also including inputs for level switches, spill switches and flow switches. Again all of this has been demoed using an UNO (some even on the DUE), but I've yet to start coding it all as one Project and stick it in one enclosure.

I've assembled everything. Just waiting on a few slick connectors and enclosure to house it. The Aquarium Controller I'm building will NEVER be commercially viable. It's simply too expensive because I rely on too many purchased components and I sense it's going to take two DUEs. It's just the culmination of other Water Quality Monitoring work I'm doing that gives me Access to the pieces/parts. You'll always be further ahead financially purchasing a commercially available product like NeptuneSys's Ápex (pretty decent stuff they are doing on the software side, with the ability to customize the control via a simple structured text command editor) or Aquadyne AquaNode (dated, they haven't substantially improved the product in a decade) . There is an Arduino based controller (angel something), but his website has buggy scripts that lock up Internet Explorer and generate warning messages from my antivirus software.

Wow, you read this far. Sorry, I warned you that there's nothing for me to show. But take a look at the Volume of information contained on the Reptile Blog.  Once I start physically building it in the new enclosure I've ordered.... I'm sure I'll get school girl gitty with excitement and start photographing and writing.
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