Just a quick test run! Here is the code I ran:
MIDI Song on Raspberry Pi W/ Piezo Speaker
I pulled a piezo speaker from an old desktop computer that I had. These things can run directly off the GPIO or you can add a resistor to lower the volume if necessary. I connected the speaker to pin GPIO18 (PWM) and GND.
I then used a modified version of the code presented here on the third post. I do not take any credit for writing this code.
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=44&t=20559
What the poster did not mention was that “tone 60″ is equivalent to MIDI middle C. From there you can figure out what value most of the major notes are. Then you can create a little song by expanding upon that script which is what I have done. I did it line by line which is likely the laziest and most inefficient method. Instead an array could have been used or an input file to be parsed. You can also change the time length of each note but I just left most of them 0.1 seconds.
There are more efficient ways of doing it, but I was working with what I had for my first go at the GPIOs.
I get my GPIO breakout and breadboard this week, so I will play around more.
Quick Cold Air Llano Runs – A8-3870K
So after llano released I wanted to give it a shot but never got around to it. Now finally after so long I’m going back to it. (See previous posts for motherboard and CPU shots)
Picked up the Gigabyte A75-UD4H and 3870K for around $160CAD total so it couldnt hurt 
I decided to do some preliminary CPU tests under cold air. For those of you that do not know, Llano does not clock nearly as well as Phenom II did on air. Max stable air clocks for my chip are around 3.5GHz on the corsair H50 so I’m using cold air to give a little bit more headroom for benchmarks.
About -10C outside currently.
Just did some quick and dirty chilled H2O runs with my corsair H50 on the 3870K. Corsair rad was put out the window in -10C weather.
Ram was left at a stock XMP profile, just overclocking with multiplier here. Untuned Win 7 X64
Shot of the setup
4GHz SuperPi 1M
3.8GHz wPrime 32m
3.8GHz PiFast
3.8Ghz Cinebench………….the 3.4GHz result was actually done at 3.6
4.1GHz validation All 4 Cores………mm voltage
Validation
Thats all for tonight, the chip is back to folding for the time being.
When I get time to bench again, next up is some ram+GPU tuning and some 3d benchies vs stock benchies
Look What Arrived Today
Making Up For Lost Time – A8-3870K Will Be On Hand Soon!
Well amidst all the new releases of trinity and PD, I have opted to pick up a 3870K paired with a GA-75-UD4H to have a little bit of fun.
I skipped over llano when it came out and most other releases as I have been pretty busy with life outside the forums/blog.
So now it is time to make up for all that.
I will be receiving my 3870K in a week, but for now here are some shots of the board and ram:
This is the ram kit I have : http://www.legitreviews.com/article/1647/1/
Hopefully this can provide enough bandwidth for the iGPU…especially once I tweak it 
I will be posting results in here once I get the APU
Slappa’s IceTube – A6-3400M APU Overclocked to 3.4GHz
I have recently been working on fixing my HP g6 laptop. As a result, everything is ripped apart down to the bare bone hardware itself.
That is when I started to get ideas. …
We all know that mobile llano (sabine) is capable of being software clocked using K10Stat. So I decided to bust out a lightweight dry ice pot and fill it with regular ice cubes!
All Set Up!
Down Pot Shot
Getting Frosty…oh and If you’re wondering why I’m reading the GPU temp, it is on die so it is the same as the CPU temp
Mobile Madness! 3.4GHz on an A6-3400M APU
Base Shot, and SODIMMs
Beware of condensation!
Fun Fact: Right after I took this photo the water leaked through the seal and dripped down onto the socket. Luckily I unplugged the motherboard before any damage was done.
Now for a couple fun little benchmark runs!
SuperPi 1M @ 3.3GHz
wPrime 32m 4 Threads
3400M @ 3GHz
Well all I can say is that was fun. The laptop motherboard I am using actually has a broken connector for the LCD screen so I am waiting for a new one to ship. Maybe I can pick up a cheap A8-3500M and do some benching on that!
Goodies For Friend’s Build
Phenom II X2 555BE ASUS M5A88-M AM3 mATX 8GB G.Skill RipJaw 1600MHz DDR3 Sapphire Radeon HD 7850 2GB GDDR5 Seagate 500GB Hard Drive Samsung 300 series LED LCD 1080P Corsair CX500 PSU Bitfenix Merc Beta Gaming Case
