Show Posts
Pages: 1 [2] 3 4 ... 55
16  Community / Bar Sport / Re: 47% of US jobs under threat from computerization according to Oxford study on: September 25, 2013, 06:16:30 am
I automated about 80% of my last job, then was headhunted by the company who supply the software I used.

I now spend my days helping other people automate their own role.
17  Community / Bar Sport / Re: To become an "expert" with electronics... on: September 25, 2013, 06:13:29 am
Read the software release notes for 1.0, 1.0.1?, making changes for wire where pretty straightforward.

I'll give it a go, but I suspect I didn't understand the code when I borrowed it from somewhere else when I started the project the years ago.
18  Community / Bar Sport / Re: To become an "expert" with electronics... on: September 24, 2013, 10:52:20 am
I've just picked up an old project after quite a while away from arduinos.

First thing that happens is that the latest version of the software isn't compatible with my old project (changes to the wire library) and I suddenly remember how utterly unfamiliar I am with electronics.
19  Topics / Interactive Art / Re: need help creating a hit counter for art project on: November 07, 2012, 02:44:12 pm
Hello!  As you know I made a similar thing a while ago.

I used an ethernet shield.  It polled a website which would then return a 1 to click one on or a 0 to stay the same.  It'll be easier for you as you're displaying a number.

You need a counter on your website.  Set up a very simple page that shows the number - you don't need to bother making it a html page, just show the count.  

During development you'll want to see what you get from the web server and work out how much text you need to discard before you get to the number.  For ease you may want to pack the number with zeros so it's a fixed length - remember it'll be easier to get your website to do more than it will to get the arduino to do it.  So, figure out what you don't want, read and discard that number of characters then store your the numbers into one or more variables.

Now, as for the nixies - I've made a nixie clock.  I've heard rumours that displaying the same number for a prolonged period will damage the tube, so I have my clock randomly flicker through random numbers for a while at a random interval.  You might want to incorporate some change, maybe scroll through them when there's a change?

Sadly I've not done anything with my arduinos in a while.  I got married recently and am now redecorating my entire house so all my stuff is in storage, including the PC I use for development, so I can't give you any code.  Let me know if you need any help though, and please message me when it's completed, I'd love to see the final thing!

edit: As for materials, any arduino board should be fine.  I'm still on duemilanoves.  You'll want an ethernet shield (get one which handles the tcp/ip stack itself) and whatever display you decide to use.

A nixie display would be cool, but you'll also need a HV power supply (you can get them on ebay) and your chances of procreating something up increase as you mix put the high voltage up the wrong bit (I did and killed an arduino). 
You can pick up LCD displays nice and cheap and they're easy to set up (see ).
I've got a few Sure Electronics 32x8 LED displays which are straight forward to use, but not as simple as an LCD display.

I suggest you get a cheap small LCD display and get the thing working, then if you want you can change the display.
20  Using Arduino / Installation & Troubleshooting / Re: Quick linux question: where do libraries go? on: February 23, 2012, 05:33:08 pm
Thanks, I'll give 1 a go.
21  Using Arduino / Installation & Troubleshooting / Quick linux question: where do libraries go? on: February 23, 2012, 04:56:17 pm
I've just switched to ubuntu and I can't find where to put my libraries (which were in c:\arduino\libraries in windows), where do packages go once installed?

Edit: /usr/share/arduino/libraries
Now to figure out how to run stuff as root...
22  Community / Exhibition / Gallery / Re: My instructables project got to the front page! on: February 21, 2012, 09:33:38 am
I saw that yesterday, it's a good article.

I've got a HDMI matrix box which also does IR extension, only the IR part has stopped working. I've been contemplating building an IR extender with web interface so I can set it to do time based complex events (turn the cable box off, turn the blu-ray player on, change the hdmi input, etc).  Your article inspired me to start work on it.

I discovered I've got an IR receiver rather than a decoder and I couldn't get it to relay an input to an IR output so work has stopped until I get a proper ir decoding receiver thing.
23  Using Arduino / Networking, Protocols, and Devices / Re: 315Mhz receiver - four pins? on: November 10, 2011, 11:30:49 am
Isn't one of those pins the Antenna in?

Don't know. I've got it working using dat1 and the built-in antenna.
24  Using Arduino / Networking, Protocols, and Devices / 315Mhz receiver - four pins? on: November 09, 2011, 03:57:37 pm
Ages ago I picked up a 315Mhz transmitter (KXDJS2002.1) and receiver - these ones:

I can't remember where I got them and I can't find anywhere that says what the pins are on the receiver (the transmitter pins are labelled).  

All the tutorials about these things have more pins on the receiver.  

Any ideas on what the pins are likely to be (and if I'm likely to break it by putting the 5v on the wrong pin)?

EDIT: Never mind, it's in one of the pictures on the link above.  Rather than deleting this I'll leave it here in case anyone's googling for the same thing later.

It's GND, Dat1, Dat2 and Vcc starting from the nearest edge.
25  Community / Bar Sport / Re: Greenpeace, makes the world a better place... on: November 07, 2011, 06:03:54 pm
Sadly I agree with Fletcher.  The goals of greenpeace are honourable but until there is a practical replacement for current technologies which  greenpeace finds unacceptable then greenpeace demands aren't viable.
26  Community / Bar Sport / Re: Your latest purchase on: November 07, 2011, 06:00:04 pm
I haven't been here in ages, nice to see this thread is still going!

I've just bought two arduino unos. I couldn't find the unused arduinos I had so ordered a couple more, then promptly found the ones I thought I'd imagined.
27  Using Arduino / LEDs and Multiplexing / Re: Hot to diffuse Multicolour LED? on: November 07, 2011, 05:57:09 pm
Thanks! I've ordered a bunch of ping pong balls, I think it'll suit the fitting.
28  Using Arduino / LEDs and Multiplexing / Hot to diffuse Multicolour LED? on: November 07, 2011, 04:23:15 pm
I picked up a couple of glass cubes with traditional bulbs in them from a charity shop. I've rigged up a bunch of three-colour LEDs which crossfade to go inside instead of the lights that came with.

The LEDs are clear though, and while the inside of the glass cubes are frosted there's obvious spotting and you can see the separate LED colours when more than one are on at once.

Is there any easy way to diffuse them?
29  Community / Bar Sport / Re: You know you are a tech geek when.... on: October 22, 2011, 09:03:14 am
You've no idea where your passport, housing contract etc are but all your components are in the right compartments (or on your workench).
30  Community / Exhibition / Gallery / Re: Portable barcode scanner on: October 20, 2011, 01:13:25 pm
I wonder if you could hack it to bypass the button and constantly scan?

My handheld barcode scanner can be set to scan constantly.  It came with special settings barcodes that you scan to set various settings (such as what barcode protocol it's using).

As for using a barcode scanner on an arduino, wouldn't it be easier to interface a p/s2 scanner?
Pages: 1 [2] 3 4 ... 55