This is the last post for 2009 and I promise there will be much more in 2010. In 2009 we had some interesting projects developed here at youritronics.com here is some of the highlights:

20 Band Audio Spectrum Analyzer

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The analyzer is currently at v.2.0 and it has allot more features then it originally had. Kits are still being produced and the shop has a new look.

Clever Digital I/O handling in C

A nice tutorial written by Laci which caught the attention of the hobbyists.

Seven segment display explained

Another really good tutorial written by Laci an youritronics author, explaining the 7 segment display and how to use it with microcontrollers.

Matrix keyboard explained

The same good quality tutorial signed by Laci this time explaining the matrix keyboard and how it can be interfaced with a microcontroller.

matrix keyboard demo

RGM-3550LP GPS module connected with Asus Eee pc

The idea behind this project was born when a friend asked me too take a look at he’s broken GPS unit (MyGuide 3000) to see if I can fix anything. After figuring out that the processor is the faulty part I decided to use the gps module for a stand alone gps module that you can just connect to a netbook.

TMP275 digital sensor thermometer

The TMP275 is a 0.5°C accurate, Two-Wire, serial output temperature sensor. I got it as free sample from TI and I put together this project to experiment with the sensor.

The 3 part DIY speaker building tutorial written by youritronics author Andrei, the kind of project that gets the most out of everything using inexpensive materials: