Calibration of Colorduino

❗ Did you read and follow the Wiki page Upload to Colorduino? If you can answer this with "YES", well Congratulation! You are now prepared for this process!

---

The Sourcecode fo the Calibration is at this direction:

Github → Sourcecode → B_calibration and open B_Calibration.ino with Arduino IDE 1.6.0.

Now, hit the upload button.

---

After that, just unplugged it from the USB and attached this to a proper Power source. It's important to use the same Power source, which you use for the hole system!

---

Now, it's your turn to optimize the colour output of these shields. I did it a bit easier for you. Just change this line

#define Unit_Pos x

This number represents one Colorduino. I recommended 0 for A_Colorduino_Icon and 1-4 for A_Colorduino.

After powering up, you will see the colour White at 100% brightness. (Don't stare directly in it!) Depending on the quality of these LEDs, it's not perfect. Maybe it's a bit blue-ish, red-ish or green-ish. In this case, you need change one of these value x (0-63):

• whiteBalVal[0] = x for Red
• whiteBalVal[1] = x for Green
• whiteBalVal[2] = x for Blue

Here a little hint from me. Start with a value in upper half (lemme say 50 for all). You will see a colour, just lowering the value of this colour. I don't recommend to lowering all value lower than 31 (except of Red), because the maximal brightness would be at ~50%! If you reach 31, just try to rise the other values a bit until you reach 63.

You are wondering why red? Well, the human eye is very sensitive at red, than blue, than green. This means, you need to lowering the colour red much harder than blue and green. There is even a different between Girls and Boys. Girls can detect more colours than Boys, but that's not the topic here :D

Every time you change something, you need to unplug it from the Power source before re-upload the code.

Don't forget to write a number on each Colorduino and the LED Matrix.

If you are happy with one Calibration, just do the same on all other Colorduino. Don't forget to change this again:

#define Unit_Pos x

By changing this, you don't need any paper or a notepad. You have everything just in one file.

---

When you finished this progress, well you are not done, yet. Now, attached all Colorduino at one Power supply! If you did a good job, there should be almost perfect! This step is important, because there is the highest load it can reach. (I used 7.3V, I got 7.25V at almost 12W) Maybe you need to re-calibrate one of them again.

---

After hours of work, you can copy this values into the Source code A_Colorduino_Icon and A_Colorduino

For Information click Colorduino.