Christmas fun

Ok, so I got a bit bored at some point over Christmas and decided to play with one of my presents – a USB Rocket Launcher.

The first difficulty was getting it to run on my Linux laptop as the drivers were only for Windows. A quick search and Scott Weston sorted me out. Then I thought it should really be controlled by more than just the keyboard so I hooked it into the Thinkpad accelerometer – now movements of the laptop could direct it. Finally, as I knew Andy Stanford-Clark would be a bit disappointed in me if I hadn’t, I MQTT‘d it so that the accelerometer details are published to a broker, a bridge app subscribes to that info and (where appropriate) publishes commands which are received by a final subscriber that actually sends the commands to the rocket launcher. This way you can easily swap out the accelerometer or indeed rocket launcher for something completely different.

I feel quite pleased with myself and slightly ashamed at the same time.

Advertisements

6 thoughts on “Christmas fun

  1. just wanted to say, this is a great blog! i love your writing style, and the stuff you talk about (better than you at a pub…

    joking! :))

    look forward to seeing more posts from you

  2. Ta very much – I aim to please! By the way, what’s happened to benfletcher.com?

    I’m not sure the Queen would shake her own Thinkpad, she might have to get someone to do it for her…

  3. Pingback: Graham White: My Notes

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s