blog

The selfmade GPS logger

Figure 7
The opened GPS logger while charging

My first complex project in the field of micro-controller and electornics was the construction of a GPS logging device. I started the project in 2008 on occasion of a competition on mikrocontroller.net (embdev.net). The device is capable of storing a path that you drive or walk onto a SD memory card. By that, you can easily view the path on you personal computer afterwards.

News: I'm really glad to announce that my article on how to build the device has been published in the 9th issue of the embedded projects journal.

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The remote garage opener

Figure 6
The remote control

Life is a very complex thing. In january 2009, I've decided to make it at least a little bit easier by simplifying the process of opening the garage door. Instead of "running to the gate lock, inserting the key, turning the key, removing the key, running to the car" this whole process can now be done with just one button press from inside the car.

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Implement a "Car Home"-like launcher menu in your own application

Figure 11
Screenshot

Recently - as I bought a Google Nexus S some time ago - I started taking a look into development of applications for the Android platform. After some experiments with the general hardware features like the accelerometer and others, I have implemented a class that may be useful for others, too.

One thing I like on the Nexus is the "Car Home" app made by Google. While driving, it provides you a very simple interface with large buttons in order to trigger different actions. Although you can create shortcuts with it, I thought it might be even better if you could have this launcher menu in the app itself that your are developing.

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Building a remote control into my car

Since about two years I am successfully using a (selfmade) remote control to open the gate to my garage. Now it's time to get rid of the remote and build the circuit right into my car. What I will be doing, is to replace an unused button on the car's dashboard with a working switch that'll trigger my selfmade circuit. The cirucit will be hidden underneath the dashboard. The modification will look as made by the manufacturer.

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