This is a fork of Qlockthree adapted for the CLT 2.0 and a front with same layout as used by the mikrocontroller.net forum.

If you don't feel like compiling the firmware yourself, this repository also contains a compiled firmware that can be flashed via ISP: Firmware download

In order to flash the firmware with an ISP programmer, a simple breadboard setup is sufficient: connect the ISP pins (MISO, MOSI, SCK, RESET, VCC, GND), connect a 16 MHz crystal between pins 9 and 10, and also connect pins 9 and 10 to GND with a 22 pF ceramic capacitor each.

In order to get the firmware compile you have to install following libraries:

from Arduino Library Manager (guide: https://www.arduino.cc/en/Guide/Libraries):

• NeoPixel library
• DotStar library
• LPD8806 library
• LedControl (MAX7219) library

others you have to install/copy manually to your library directory (C:\Users\MyUserName\Documents\Arduino\libraries):

• LPD8806DBL library (find download button on the right "Download ZIP")(only used for XXL-matrix using 2 LED each letter)
• LPD8806RGBW library (find download button on the right "Download ZIP")(only used for LPD8806 RGBW LED's)

P.S.: Unfortunately the LPD8806 library from Adafruit includes a bug which prevents from successfully compile the sketch. You have to open the file "LPD8806.h" from "C:\Users\MyUserName\Documents\Arduino\libraries\LPD8806" and paste the following lines after file header:

#ifndef __LPD8806__H__
#define __LPD8806__H__

At the end of the file close the hash-if:

#endif

After this adaption the class should look somehow like that:

[... header...]
#ifndef __LPD8806__H__
#define __LPD8806__H__

class LPD8806 {
[... class content...]
};

#endif