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151  Using Arduino / Project Guidance / Re: What else can you use old windshield wiper motors for? on: February 20, 2013, 05:02:35 pm
Quote
TrailerTrash wrote:
dude i already done that long time ago. i wanna know what YOU would do with old windshield wiper motors?

Ya wanna know what I would do, I dunno, just toss em, me thinks, why, ya got a load to sell?

Not sure what 'old car windscreen wiper motors' have to do with Arduino and in Project Guidance section?
Paul
152  Topics / Home Automation and Networked Objects / Re: IoT sous-vide cooker on: February 20, 2013, 08:59:24 am
Wow, that is just so neat.
I love spending time preparing food, and this brings two passions together.
Just cant help but think that having a sous-vide cooker will give me more time for tinkering.

I'll read your blog again and more slowly to let it soak in to savour it better.

Well done.
153  Community / Website and Forum / Re: Forum Website Down on: February 20, 2013, 07:50:03 am
Maybe Lefty was burning a Mega this time.

No problems madbob, hope you're not pulling your hair out.
I noticed from the responses that there might have been a sql'ish problem as well.

Appreciate the work you do to keep the gears turning.
154  Community / Website and Forum / Re: Forum Website Down on: February 20, 2013, 04:45:00 am
And we're back again, yipee  smiley-grin
155  Using Arduino / Project Guidance / Re: What else can you use old windshield wiper motors for? on: February 19, 2013, 08:32:00 pm
To move your solar panel or panels I would suggest using a linear actuator with position feedback rather than an old wiper motor.
The wiper motor will be under powered and too fast and has no feedback to let you position it and the mechanical part would be a nightmare.

There was a discussion in the past few days here about positioning a solar array using know time and location, using 'Solar Path Algorithm' or SPA.

How about a simple roller furler sheet to cover your solar panle(s) during the evening?

Quote
Henry wrote in the future:
To wipe your solar panels, to ensure they're clean and working at full efficiency?
If you use them like you do on a vehicle windshield then you miss wiping most of the panel and they will not work to full efficiency.
Also, if the rubbers become perished you run the risk of scratching the glass on the panel.
Not my choice to clean panels.
I clean mine every now and again with a water and soft brush, just to get dust and the occasional bird poop off.
156  Community / Exhibition / Gallery / Re: Enlightened Domotics Alarm Monitoring System(EDAMS) on: February 19, 2013, 07:28:01 pm
Hello Alex,

Just wanted say well done and it is good to notice that you are continuing to develop the EDAMS software.

Wishing you every success with it.

Paul
157  Community / Website and Forum / Re: Forum Website Down on: February 19, 2013, 06:48:57 pm
retro, I guess you just had to re-burn that boot-loader again hu?
It must suck all the arduino electrons in the world to do it, just everything stops.

Try not to do it again ok  smiley-twist
158  Topics / Home Automation and Networked Objects / Re: make code smaller on: February 19, 2013, 05:38:26 am
Hi Jantje,

I haven't compiled the OP's code, but I wouldn't have thought it would exceed the memory of the UNO.
If he is, then I think it just comes down to unhealthy programming practice.

P.S. still loving working in Eclipse with the plug-in you made, working right now on my project, ah such bliss  smiley-grin

Tot,
Paul
159  Using Arduino / Interfacing w/ Software on the Computer / Re: Communication with arduino and OPC/SCADA? on: February 18, 2013, 07:22:09 pm
What a shame VisBee only seems to operate on microsoft windows, I hope you are also looking to have it operate on other OS's.

Just like 'Citect SCADA' and the Allen Bradley RSLogix range of software products, they all only operate on windows, and this is the only reason I keep a windows image available in VirtualBox environment. I feel irked by having to keep software like this for work I do in Industrial Automation.

How wonderful it would be if we could have our operating system of choice and be able to use some of these programs.

Chris, a problem with your 'visbee' web site. If go to this page http://www.visbee.de/Christ/Christ-Elektronik/ and then select the English flag at the top of the page for English then all I get is a blank page. There are other pages that do the same, you will need to check to find out which pages do not work.

Paul
160  Topics / Home Automation and Networked Objects / Re: make code smaller on: February 18, 2013, 06:17:44 pm
@CrossRoads, thanks, some people just don't seem to read  smiley-confuse

Quote
wdvalenz wrote:
I made that, I am trying to use recursiveness, when the reading is not property done then I try to read once again.
If it fails it will do it again and again and again until the Arduino runs out of memory for the stack.
You will need to change how you do this. Re-code it to have a retry loop which can be specified to retry a number of times, such as 3.
If it doesn't succeed you return an error code and let the user know and put the Arduino into a specified condition.

Another thing you can do to help reduce your code it to use integer instead of floating point variables.
Then at the display output, you format your data to represent floating point by dividing by a scale factor.
For example, you declare 'float hum', and I assume this is humidity right?
Humidity can be represented as 0 to 1000 as an integer with a 0.1% resolution. Then to display it, simply divide by ten to have it scaled 0.0% to 100.0%.

The difference is that you work with it as an integer during your program and that can significantly reduce your program size and the available processor ram used in calculations. I often keep sensor data as, what is called, raw, that is raw ADC format, so 0 to 1023 and then have the function that does the displaying do the necessary scaling into what is called engineering units.

So, to summerise, try to make as much of your data munching using variables with integer format where possible.

How does the Davis weather station present its data on the serial channel, as strings or binary or key/value pairs or what?
What are the delimiters used to separate the data values from the Davis weather station? Again, more information!

Again, your commenting is lacking, it takes more work for me to understand your program, and I don't want to guess, so please comment.

Please be much more specific when you mention errors, not just
Quote
but whe I want to try adding the Logger it does nothing
That means absolutely nothing to me, and like I said before, I don't want or need to waste my time guessing all the time, please be much more accurate and specific with how you write.

Paul
161  Community / Website and Forum / Re: Forum Website Down on: February 17, 2013, 02:44:50 pm
Thought the world was coming to an end, meteorites crashing , asteroids fly-bys and all of arduino land crashing the world over.
Relieved to know the human race has yet again survived, though I am humbly reminded by how lost we can be without the things we take for granted.

Must have been some difficult and anxious hours for the sever maintainer person or people.
Many thanks,
Paul.
162  Using Arduino / Project Guidance / Re: solar tracker using RTC on: February 15, 2013, 07:50:41 am
AWOL, sounds good to me, what size did it compile down to if you have the figures handy?
PS, I like that slight hint of yours about 'want to'
163  Using Arduino / Programming Questions / Re: Programming arduino ethernet on: February 15, 2013, 07:35:59 am
Ah Kuba89, thanks for clearing that up for me, now I understand better.

Well, if I were you, I would look in the playground and look for 'Arduino as ISP' and connect the two boards together, making the UNO as your ISP programming device for the Arduino Ethernet board.

I did this some months ago with my Arduino Ether-Mega, which did have a standard USB programming port, but was unfortunately blown when lightning decided to strike very close to my home. So I configured an old Arduino to be my ISP programmer and I was in business again until I received some new replacement boards.

If you have a few lengths of wire in your electronics box of goodies then that is all you should need to connect them both up.

Paul

P.S. looks like we both posted with seconds of each other, so my post was in reply to your previous post.
164  Using Arduino / Project Guidance / Re: solar tracker using RTC on: February 15, 2013, 12:38:51 am
Watching with interest.

I will be coding up tracking facilities onto my Arduino to move a solar array here at my home, and have a small scale mock up of the construction.
The hole is dug, the concrete is ready to be mixed up for the tower.
I have hot dipped galvanised 2 metre sections of triangle tower to mount the tracker on.
I'll be using a single 36VDC linear ram drive with a extension of 600mm, normally used for satellite dish position.

I intend to use my know location and knowing the time to point the solar array to the correct position, without the use of light sensors.
I already have the Arduino getting UTC from a network time server as part of my whole renewable energy system.

Here is a link to some information to generate some further interest, http://en.wikipedia.org/wiki/Sun_path
I guess SPA is Sun Path Algorithm, I see no problem that the Arduino can calculate exactly what the position needs to be.

My renewable system as it is at present is viewable on the web in my signature.

Quote
UKHeliBob wrote:
http://bit.ly/11Ddm97
Well, isn't that neat, I like that.

Paul
165  Community / Website and Forum / Re: Proposed "sticky" : How to use this forum on: February 14, 2013, 09:04:18 pm
Looks good Nick.

One other thought that came to me was that when a user believes his/her question has been answered that they could mark the topic as being 'SOLVED', by editing the heading of their first post. Maybe for section 14 in your list.

This will help both people who are offering advice, but also other people with a similar problem to clearly see the state of the topic.
It also displays some respect from the original poster that the help received has been helpful.

Thoughts?
Paul
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