Add USB LED Notifications To Your PC With Just a Bit of Soldering (Video)

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Arvydas Juskevicius (say that five times fast) is an independent software developer and hardware hacker based in London (which is where I got a chance to talk with him) who's decided to bring the useful LED signalling capabilities of many modern smartphones into the world of desktop or laptop computers. With his £10 BlinkStick kit (£15 pre-assembled), you get a programmable multi-color LED that's about the size of a flash memory key. Deceptively simple -- it's essentially one giant pixel, after all, which might not sound exciting when you have millions of them on a dense display surface. But that LED light is something you can use as a signal for alarms, or to tell you that you have a message from one app while another is at full-screen, or practically anything else that you can devise software to notice and react to. I get the sense that Juskevicius would prefer that people get the kit version, to help spur interest in actually soldering some hardware rather than just plugging it in. If you're allergic to paying in other than U.S. dollars, the BlinkStick is also available from Adafruit Industries. Watch the video below to see it in action.

Arvydas Juskevicius: BlinkStick is a DIY kit I designed myself and this is something that I just wanted to solve a very simple problem. I want to display an email notification on my computer. We all have this on our phones and tablets but nobody does that I thought well, I just didn’t have something that I could build myself, that I could use it on my computer. So effectively, that’s what it is. And this small device - it is the size of a USB dongle for memory. And you can build it yourself.

Once you build it, then you just plug it into a computer and it just works with Windows, Mac and Linux. It doesn’t need any drivers. It comes with a wide range of API implementations and programing languages like Python, Node.js, Ruby, Dotnet and also Autoit if you have ever heard about that.And so it is also hackable.

So right here, I have it hooked up to an Ikea Dioder and it is controlling the whole LED strip right around this, around my table, (which is for the purpose of demo). In addition to that, it is also being hackable. It also can be linked over to BlinkStick.com where it can be controlled remotely. So you can set the color remotely and it has this very basic API. So this is pretty much it.

Tim:What does it cost?

Arvydas:It is£10.

Tim:And what are some examples of things you might use it for, okay email notifications

Arvydas:So one of them is emails. So there are two things that it can be used. I have heard people using it for various crazy things. So first of all, this is like something that you would do for educational purposes, where you would like to learn a little bit of soldering and it is really easy to solder it, it is just 15 components in it– I designed it that way. So it is like a learning experience.

So you solder it, you hook it up to a computer and then you can use one of the APIs just to control and interface it. Another option is it can also come in pre-soldered so you can just use it to do some email notifications, build process I know companies are using it for notifications about well, from third party telephone systems, about new messages, where they don’t have it normally.There is also a guy who is using it to calibrate a telescope somewhere in the mountains. This was really bizarre for me.There is also

Tim:How do you use it to calibrate a telescope?

Arvydas:To be honest, I know I just have this as a he wrote an email that he is going to be using that and he is doing it in some way so it is probably like pointing it to the light so that it focuses properly, or something like that.

There is also another option. I have also heard that they are using it as a postman detector where a wireless camera that links to Raspberry Pi and links to (it works great with Raspberry Pi), where a wireless camera links to a Raspberry Pi connected to a BlinkStick and whenever there is movement, the webcam notifies Raspberry Pi and lights up BlinkStick that there is somebody at the door.

So there is really a wide variety of ways it is being used. I have been putting a lot of tutorials on the website and there is also a blog where I write about whatever somebody comes up with it. So there is also like a possibility to use it as an Ambilight clone where it glows around the monitor and throws an average color (there is also a video on BlinkStick.com).So that’s pretty much.

Tim:I see several of them hooked into one USB controller and they are running independently, is that right?

Arvydas:Yeah. So all of them are controlled separately and they are all just running through different well animations as they call them, but each of them can be addressed separately, and if you have more of them you can control any of those, so you can one notification for an email, another notification for well, temperature, like it is going to be hot outside so I probably should take a coat, it is going to be hot, outside, so if it bothers you so don’t take a coat, and that could be represented by a red light from BlinkStick that picks the information from a web well, from a web based service.

Re:Scolllock and Numlock

[mythosaz]

All of the *lock keys are mostly useless. Plenty of people (myself included) have remapped our Caps Lock key to TAB. The number of times I've wanted Caps Lock has greatly outweighed the number of times I've sit hitting it 1-2-3 times making sure it's not toggled wrong. Ditto for Scroll Lock. The number of times I've wanted it on versus the number of times I've said, "Hey, why isn't that scrolling right?!?"

Using those keyboard lights for notifications is OLD NEWS. We've been doing it forever... ...for about £15 less than the £15 in the slashvertisement.

Re:Why not just blink...

[bobbied]

OR.. Brace yourself.... Write a program that pops a dialog box... You can do it for free, no hardware, soldering irons or USB port required.

Re:Scolllock and Numlock

[strength_of_10_men]

We get it. You think it's a better idea to do this with software. That's fine and there are no shortage of such programs.

But what about when I'm playing a game in full screen? (as mentioned in the article). What if the monitor's gone to sleep? What if I'm listening to music with the monitor off?

Just because there's another way to do this doesn't mean this do-hickey isn't useful.