Technical hints and tips

Miscellaneous technical suggestions.

How we create dynamic display information for CODA

Recently we blogged about how you can put live Twitter feeds on your CODA displays. It may be of interest to some of you how we did this, and how you can create your own screens that show dynamic content.

Keep an eye on your energy usage with CODA!

These days, everyone thinks about how much energy they use, at work or at home. This might be out of concern for the environment, to save money, or both! Thankfully there's an ever increasing range of options for monitoring your energy usage, but typically the information is only presented on a tiny screen, and you need to be next to the screen to see what is going on. If you really want to get the message about energy saving out to a wider community, in a larger organisation like a school or a company, then you need it to be shouted out - that's where CODA can help!

Some of the more recent energy monitoring systems have a way to get your energy usage data out of them, either historic data, real time usage, or both. One of the most common options to monitor energy and "free" the data is to use a CurrentCost device, pictured here. This device has a serial port built in that will continuously report energy usage in real time, and periodically report your recent energy usage history. At Camvine we use this device to display our energy usage on CODA screens around the office, so we're all aware of how much energy we're using.

Making sure you know what's coming up with CODA

One of the big advantages of the Web 2.0 era is the ease of getting access to information through the various APIs made available from web services. Now, with relatively little effort, you can programmatically interact with services so that you can get at data in a way you want, not just the way that the provider thinks you might want. This means that a small amount of technical effort is all that's needed to take this information and put it on your CODA screens!

A great example of this age of open information is the BBC - they run a variety of APIs as part of their Backstage initiative. They've made it very easy to get access to all sorts of information, and in this hint we show you how to get BBC schedule information onto your CODA screen.

Making controlling CODA child's play

Our aim at Camvine is to make digital signage as easy to use as possible. Our website interface is often praised for its simplicity, and there's the simple iPhone interface for CODA for when you're out and about. Now we've literally made controlling a screen child's play, using the amazing Internet-enabled Rabbit, Nabaztag!

Track online music charts with CODA!

Providing a way to get real time information out to users is often as much about entertaining people as it is informing them - giving people access to real time information that they find interesting is a great way to engage people's attention. At Camvine we often mix in fun facts into albums in amongst other interesting but drier content.

Drop files onto your CODA screen

Many of us at Camvine are fans of Dropbox, a utility for Windows, Macs and Linux machines which will automatically backup one of your directories to the Dropbox service, allow you to browse the contents through a web interface, and synchronise that directory across multiple machines. Very handy!

Track the status of your Asterisk phone system

Many businesses have made the switch using digital exchange software such as Asterisk to make it easier to manage their phone systems. Such systems have great potential not only in how they let you configure your phone system, but also in the information you can get out of it. With CODA, you can easily get that information visible so that those that need to monitor it can do so at a glance, and here we show you how.

Using CODA to track your website's performance with FeedBurner

One of the important things when running a web business is trying to monitor how your website's usage. There are many ways to track this, such as Google Analytics or FeedBurner. You can use CODA to let you put this information on prominent display, so you and/or your staff can get a real time indication of how busy your website is.

For example, in the picture here we're displaying the FeedBurner stats for the popular technology blog TechChrunch. In the rest of this hint we show how we did it, and how you can get your site's FeedBurner stats onto a screen very quickly.

Track development progress with CODA

Today any reasonable software development project will use one or more version control systems, such as Subversion, Mercurial, or Git. As developers make progress they put their work into the source code repository with a commit message to explain what they do. This information however is typically buried away and rarely referenced. But not at Camvine!

Show how busy you are, with a CODA inbox count!

Here's a Python script which will connect to an IMAP server, ask it for the number of unread messages in your inbox, and output a CML report.