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31  Community / Bar Sport / Re: Beginner’s Blog on: March 06, 2014, 04:26:30 pm
Hi Pedro,
Looking at your blog sites, I notice on your contact page you only have a google map of Canberra, no actual way to contact you, is this intentional?

The theme you are using tells me at the bottom 'Responsive Theme powered by WordPress', but when I view on a reduced screen size your top menu collapses as it should, but the drop down menu selection holds no menu items. 

On your other site '' there appears to be a serious problem when you try to scroll down on this page Well, in my Chrome browser it does  smiley-eek

Keep having fun with the blog making  smiley
32  Community / Bar Sport / Re: List of all the 'ranks'? on: March 02, 2014, 06:27:46 am
I'm thinking, is a score 3.35 a good thing then?
That's what we need, a 'Grumpy Old Mens Club'.
I always laughed when they showed up on the Muppets  smiley-grin
33  Using Arduino / Sensors / Re: using arduino pins as switches on: March 01, 2014, 10:51:34 pm
It sounds like to me that you really have a need to know that a specified pin is connected to another specified pin, is this correct?

Can you tell us a bit more about what you are trying to achieve, explain what your project is to do, then I can better understand why you wish to use this technique?

But if that is the case, then what you would normally do in this situation is to define a number of pins as outputs that you will sequentially set and reset. Then you will define other pins that will be defined as inputs and you will scan these pins or do a byte read to know which pins are set in accordance to the output pins. This is the simple concept of a matrix as used by most keyboards.

Again, you need to be more specific with providing clear details or we will all go around in circles.
34  Community / Gigs and Collaborations / Re: Help develop a new stackable development system on: March 01, 2014, 08:26:56 pm
Fairfax have just called and others, who seemed chaffing at the bit to have interviews and hold press conferences?
They have their printing presses on hold with headlines of 'Quub, - the next must have item'  smiley-grin

Start laying down tracks Rob.
35  Development / Other Software Development / Re: Windows/Linux/Mac Eclipse plugin to compile and upload arduino sketches on: March 01, 2014, 08:09:16 am
Yes I thought your instructions were quite well explained too.
I could have used them last year or was it the year before that, when I was going through this myself.
Still, I learn much by slogging through the hard way.

Thanks Headroom, I hope this will help Ersan and others with using Eclipse.

P.S. You would have had a few more visits just now so I could get the link in my post  smiley
Maybe I should read it again.
36  Development / Other Software Development / Re: Windows/Linux/Mac Eclipse plugin to compile and upload arduino sketches on: March 01, 2014, 07:57:47 am
Sounds like you have really tried to get it going, hopefully I can give you a few pointers to help you get up and working with this great plugin for Eclipse.

Before you start, you must have the correct version of the Arduino IDE already installed on your Mac. You can check on Jantje's site for the correct version you need for a specific version of the plugin. I do find it confusing how Jantje has detailed this and would like to see his instructions for this laid out differently so it is more clear and understandable. But, basically, only certain versions of the Arduino IDE can be used with the plugin. I believe this is because of changes in the way Arduino do things.

But, to let you know I use and others suggest using Arduino version 1.5.2 beta.
I use this version as I am playing with the DUE as well.

There are two basic approaches to having Eclipse work with Arduino, so that you can program and upload from Eclipse to your connected Arduino.

The first is along the lines of what you have done, and this was Jantje's first method of installation.
For this, you needed to download and install, as you have done the specified version of Eclipse CDT (The C/C++ dev system). After checking that Eclipse was installed and working correctly, you would then proceed to install Jantje's plugin.
Normally this is done from within Eclipse.
You can see this here
From there you will see that you need to run up Eclipse and the select 'Help | Install New Software.
Follow the instructions step by step and you should end up with a system that works.

Also, as you are also on a Mac, this may also interest you, a link from Jantje's site

Right, the second method, is far easier and should have you up and working in a very short time.
That is download one of Jan's prebuilt packages from his download area,
Go down to see the Mac OSX packages and select a recent version.
You will need to unzip it and then you can install it..

Now, the problem.
I tried a few of these packages last week for you already, but, as you know I had problems with the installation.
I emailed Jan about this, but he is unfortunately unable to test the situation as he doesn't have a Mac.

To further test my research, I downloaded a bete testers package for Mac OSX and that installed fine for me.
Maybe you might like to try to download a prebuilt package from the download area with the link above and try.
That way, if you have problems, you may tell Jan and we will then need to see what the problem there is.
Maybe it was just me and I did something incorrect, but I tried on both my Macbook Pro and Mac Mini with the same results.
Both installs from the download are failed to install correctly,with errors being generated during the unzip process.
Yet on both my Mac's I could use the beta testers prebuilt package just fine.

Ok, I think that should be enough to get you well and truly confused Ersan  smiley
37  Using Arduino / Networking, Protocols, and Devices / Re: push notifications with Google Cloud Messaging on: March 01, 2014, 12:59:26 am
If you are open to using other services, then you might like to look at PubNub.
Main page is

They have an API for Arduino here

It is based on a publisher subscriber model, where you can very easily have your Arduino publish a message.
Any connected and subscribed clients will be notified right away.

It worth reading up on and seeing how this technoogy is used.
I use it currently on my Freetronics EtherMega which has onboard Ethernet and send my data only when a certain change has taken place rather than constant polling of data.

This can make a very responsive system, with new values able to be published from your Arduino at a fairly fast rate and then throttled back to almost nothing while there is no new data.

There are other services like this as well, such as Pusher.
Hope this helps.
38  Using Arduino / Sensors / Re: using arduino pins as switches on: March 01, 2014, 12:18:24 am
You say:
I'm not sure how to use arduino pins as switches
That makes at least two of us, switches will only be switches and not Arduino pins  smiley

Actually, what you do do is you connect switches to the pins on an Arduino and have your program detect when one or more switches change state.

So, rather than wasting a digital pin as an output that would appear  never to change state, but only is there to provide a 'high' or 5 volts to one side of your switch, why not just wire it to the Vcc line which is 5 volts?

In fact, what is normally done is to wire it to 0 volts, not the 5 volt line. and ten set the input of the pin to have the internal 'Pull Up Resistor' enabled.

Now what happens is that when the switch is open or in the 'off' state, the pin will be read as high level due to the internal pull up resistor making your input high. Then, when you close the switch you connect that pin then to 0 volts and you will read a low state when you read that input pin.

Simple, right  smiley
39  Community / Gigs and Collaborations / Re: Help develop a new stackable development system on: February 28, 2014, 07:29:43 pm
Thank you for sharing the link Chagrin.
It appears that backplane sits on top of an Arduino shield, which to me doesn't represent a way forward, just more capacity to create some mess. Looking at the photos I don't see how that is an improvement on what we already have or how that will be mechanically stable.

Over the past months, a fair amount of thought has gone not only into the electronics of the Quub system, but also into how it can be mechanically constructed and expanded.

It is hoped that it will suit many different situations, from the desktop plaything to robotic adventurer to sophisicated remote monitoring systems and even to finding a place in the niche of industrial control systems. We'll be excited to see what people do with it.

Each iteration of the design has seen requested features and its overall functionality improved, whether that be from people here on the forum, or the ideas talked on late night skype.

The signals that make up what we call the 'stackplane' of Quub have been thought over long and hard now and it is all to easy to keep going with designing and putting new ideas in, with ever decreasing gain. Saying that, what we were asking is for any specific ideas or suggestions you may have we could consider.

The current design of Quub, we think what we have is very good, in terms of backplane signals and how that works to create a very expandable system with per board addressing and vectored interrupt giving fast servicing of IO on the different I/O modules that will become available in time.

Quub is designed to be as rugged electrically and mechanically as we can have for as lower cost as possible.

Talking with Rob, our next step is to have the CPU-2560 board made so we can put it through it tests.
We then expect to make a start on the various IO modules that will make up the Quub system.
40  Using Arduino / Sensors / Re: Allegro ACS758 AC Sensor on: February 28, 2014, 07:51:46 am
This question is asked often here, have a look back through some of the forum sections for this.
As you will understand, you are able to measure a steady state current but with an alternating current you will have troubles without some additional tricks.

Some people suggest using a software approach, where you detect and measure only while the current is in the positive cycle. This can be tricky if you're not careful.

A preferred solution is to place a precision rectifier and buffer after the ACS758.
Using this method will more likely give you a more accurate representation of the actual current in the conductor.
41  Using Arduino / General Electronics / Re: numeric smd digital display on: February 25, 2014, 08:48:48 am
It sounds like you felt irked by some of the responses given, would I be right?

You certainly put a lot more thought into justifying yourself where your time spent may have been better used in describing more precisely what you have and what you wish to do in your initial post. Would that be a fair comment?

It is ok to say you are not a technician or a geek or that you don't have certain skills with electronics, though maybe next time say this at the start. Doing so, gives us a way to relate to your skills and I'm sure most of us can relate to this and we can then be more kind, or at least appear so. That said, I do agree with others in that with over two hundred posts here in Arduino land, one would think you may have the skill of doing a little searching with al la google.

Your LED should have some numbers on it I suspect, does it?
If yes, I bet you can google that number with the wording of 'seven segment LED' or even just 'LED' followed by number. If it has a number, did you try that at all?

If the LED you have has no numbers or identification and it was part of some kit or pack you bought then I would seriously suggest you put it in the spare parts box for another day and buy a kit from somewhere else where they do give you the instructions you are needing. Would that seem reasonable to you?

With no identification markings, we are not really able to offer much help to you, and as Rob mentioned, you may just need to firstly allocate a block of time to sit down and work it out yourself with a resistor and suitable power supply.

Most of us have been here for a while now, myself included, and well, we like to talk in detail and with specifics and with some degree of clarity. I hope you would you be willing to try this next time.
They think our disorder comes from excessive late night programming, where you really do need to be careful with your details and being clear, else you end up with what some call a rats nest of a program or circuit that lets the good smoke out too easily.

Stick with it, you'll get there, but don't try to make it extra hard for yourself with a kit with no instructions.
42  Products / Arduino Due / Re: Arduino Due or Beaglebone Black on: February 23, 2014, 03:36:18 pm
You might like to look at using a Cubieboard, rather than a RPi or BBB

I bought a Cubieboard2, which has a dual core A7 with 4GB of NAND and a full 1GB of RAM.
I'm in the process of making a panel that has the Cubieboard2 connected to a DUE for a new renewable energy SCADA system for my home setup.

As you may know, the Arduino range of boards are great for all your IO tasks, so reading and smoothing of analogues and detecting interrupts and setting digital outputs and so forth.

A small Linux based board is great for doing the higher level application based tasks.
I'll be using the Cubieboard2 to be either a Nodejs or Python based real-time TCP/IP server, and have it set up with Debian headless with Nodejs currently for tests.

You can elect to install headless or have HDMI video with a desktop based operating system.
The Cubieboard2 I think has some nice features and looks to be well thought out and designed.

It seems to be amazingly energy efficient as I have it currently on the test bench, where I have the Cubieboard and 80GB SATA drive running Cubian headless all powered via a USB port from another laptop.
As a dual core 1GHz system, this has got be one of the lowest energy consumption systems about.
For use on renewable energy systems, this appears to be close to perfect.

Separating the two tasks and having each system configured to do specific tasks best suited for each board has been a idea I have had for a while now.

I initially researched the various Linux boards and found the Cubieboard2 to be ideally suited to what I need.
It is not unlike the BBB, in terms of physical size and sits well next to the DUE.
Another link for more info;

Hope this helps.
43  Community / Bar Sport / Re: Any old timers able to host my code ? on: February 10, 2014, 05:18:50 pm
It looks good to me, running Firefox.
I see menu and files, all 16 of them, is that correct?

Mind you, I am logged into Google, so could that be a reason some others don't see the files.
44  Development / Suggestions for the Arduino Project / Re: IDE tab bar not enought wide for big sketch. on: February 07, 2014, 07:01:29 pm
Graynomad wrote:
A friend uses Eclipse with the plugin by Jantje ... he says that's good as well.
It is, I use it on both OSX and Linux.

My Eclipse setup on OSX I set up the long method, whereby I setup the Eclipse IDE and then I included the Arduino pluging from Jantje.

For the linux laptop, I simply downloaded a single package from Jantje's site that has everything already setup and ready to go. It really couldn't be any simpler.

There are pakages there for all three major platforms, so take your pick and download.
I would encourage you to take a look at Jantje's site
Then simply head to the nightly builds and select your preference.

For me, the standard Arduino IDE was great to play around with for basic projects, and soon was looking for an IDE that would suit my needs to handle more complex setups.
As well, on my Mac, I usually have two windows open at the same time, one for my current Arduino project and another for HTML/JS/PHP things. I have found it to be very competent at doing all I need.

Let us know what you think.
45  Community / Bar Sport / Re: Arduino compatible ZIF socket, WTF? on: February 01, 2014, 03:00:36 am
Yeah and C++ is a ripoff from Java.
I'm not sure that is the case, in fact isn't it sort of the other away around, from what I understand.
Still, if her name is Java, I not complain, imagine Java, Arduino compatible  smiley-lol

P.S. I stand to correct myself, you are correct, oops
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