Silvia is a virgin...... again!

Well.... as you can see form everything in this blog, Silvia and I share quite a history. I can't imagine how many hours were involved in this project, the new skills to learn, and the satisfaction of bringing the project to a successful conclusion.

But, like many things... there is a time to move on. My espresso interest has taken me to a new commercial machine, and so it's time to say "good bye" to Silvia.

Because none of the original electrical wiring needed to be cut for the Arduino modification (I used quick connectors for everything) returning Silvia to her virgin form was very quick and easy. In fact, I was amazed at how little time it took to undo compared to all the hours it took to do! Once completed, of course I had to test her out...

Actually tasted as good as it looks!

I have photos of Silvia, in her new form posted on Flickr, and you can see the photos here. There is also a slide show of the images.

The only modifications that I left behind are the following:

• Brew pressure adjusted to 8.5 bar
• SSR retained for future PID installation - if desired
• Dispersion screen - countersunk / flat head screw
• Insulation remains on the internal steam tube (looks cool!)

I am sure that Silvia will find a new home, with many years of service ahead!

Programing Code

Long time since my last post... got very busy, but I've been enjoying the fruits of this labor! The espresso is great!

I have posted all of the programing code at this LINK. The code is saved in the parent directory called: Silvia's Button Brain. Open that directory and it takes you to two sub-directories:

• Silvia's Button Brain Code
• Silvia's Libraries/

You can then open each of these sub-directories (just click on the links).

Silvia's Button Brain Code/ directs you to the following files:

• ButtonInterface.pde
• FacePanelSwitches.pde
• HeaterControl.pde
• MachineState.pde
• PID.pde
• RealTimeClock.pde
• SerialInterface.pde
• Shortcut to SilviaLib.lnk
• SilviaButtons05V1.pde
• SparkFunDisplay.pde
• TempSensor.pde
• applet/

And then Silvia's Libraries/ takes you to the library directory: SilviaLib/. In this directory you'll find the following files:

• FacePanelSwitches.h
• eeprom_float.cpp
• eeprom_float.h
• eeprom_float.o
• floatToString.cpp
• floatToString.h
• floatToString.o
• machineState.h
• silvia.h
• sparkFunDisplay.h

This gives you access to the innumerable hours and hours of programing that went into the producing the various functional components of this modification.

So there you have it!! One really important thing to pay attention to. This code was compiled under Arduino 10 (Arduino software v.10). As of today... the latest version is Arduino 22!! I am not certain that this code will compile successfully under any version other than V.10 (if it does , let us all know!).

All of the Arduino software can be found here: Arduino Software. From this page you can download any version you like, but if you scroll down to the lower third of the page you'll find:

"Arduino 0010 (release notes): Mac OS X, Windows, Linux "

That's what you're looking for to run the code that runs this Silvia Modification.

Good luck..... and above all..... Have fun!