Now, before I get started I want to tell you that I am not the best a at programming.
I tried to upload *matrix8x8* to am arduino Uno ,but got hit by a brick wall which seems impenetrable.
I installed the Adafruit_gfx and Adafruit_Ledbackpack libraries but when I tried to open the matrix8x8 sketch and verified it it threw many errors at me! (16!)
I read through the previous comments but to no to a vale did I fix the problem.
I tried the libraries at this post ,but the same bug occurred.
Here is the console log.
matrix8x8.ino:23:34: error: Adafruit_LEDBackpack.h: No such file or directory
matrix8x8:26: error: 'Adafruit_8x8matrix' does not name a type
matrix8x8.ino: In function 'void setup()':
matrix8x8:32: error: 'matrix' was not declared in this scope
matrix8x8.ino: In function 'void loop()':
matrix8x8:65: error: 'matrix' was not declared in this scope
matrix8x8:66: error: 'LED_ON' was not declared in this scope
Please help me, I need to do this for school.
---Dr_ukendermen
Problem compiling example 8x8 LED matrix backpack sketch
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
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- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: Problem compiling example 8x8 LED matrix backpack sketch
You don't have the libraries installed correctly. Please review our tutorial on installing libraries.
http://learn.adafruit.com/adafruit-all- ... nstall-use
Also note that you have to restart the IDE after installing a library. Otherwise, the IDE will not recognize it.
http://learn.adafruit.com/adafruit-all- ... nstall-use
Also note that you have to restart the IDE after installing a library. Otherwise, the IDE will not recognize it.
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Re: Problem compiling example 8x8 LED matrix backpack sketch
I did follow the tutorial ,and Restarted the IDE. I followed the tutorail straight on ,but now it's even worse.adafruit_support_rick wrote:You don't have the libraries installed correctly. Please review our tutorial on installing libraries.
http://learn.adafruit.com/adafruit-all- ... nstall-use
Also note that you have to restart the IDE after installing a library. Otherwise, the IDE will not recognize it.
Here is the console log:
In file included from matrix8x8.ino:23:
C:\Users\Admin\Documents\Arduino\libraries\Adafruit_LEDBackpack/Adafruit_LEDBackpack.h:32:26: error: Adafruit_GFX.h: No such file or directory
In file included from matrix8x8.ino:23:
C:\Users\Admin\Documents\Arduino\libraries\Adafruit_LEDBackpack/Adafruit_LEDBackpack.h:72: error: expected class-name before '{' token
C:\Users\Admin\Documents\Arduino\libraries\Adafruit_LEDBackpack/Adafruit_LEDBackpack.h:81: error: expected class-name before '{' token
matrix8x8.ino: In function 'void loop()':
matrix8x8:66: error: 'class Adafruit_8x8matrix' has no member named 'drawBitmap'
matrix8x8:71: error: 'class Adafruit_8x8matrix' has no member named 'drawBitmap'
matrix8x8:76: error: 'class Adafruit_8x8matrix' has no member named 'drawBitmap'
matrix8x8:86: error: 'class Adafruit_8x8matrix' has no member named 'drawLine'
matrix8x8:91: error: 'class Adafruit_8x8matrix' has no member named 'drawRect'
matrix8x8:92: error: 'class Adafruit_8x8matrix' has no member named 'fillRect'
matrix8x8:97: error: 'class Adafruit_8x8matrix' has no member named 'drawCircle'
matrix8x8:101: error: 'class Adafruit_8x8matrix' has no member named 'setTextSize'
matrix8x8:102: error: 'class Adafruit_8x8matrix' has no member named 'setTextWrap'
matrix8x8:103: error: 'class Adafruit_8x8matrix' has no member named 'setTextColor'
matrix8x8:106: error: 'class Adafruit_8x8matrix' has no member named 'setCursor'
matrix8x8:107: error: 'class Adafruit_8x8matrix' has no member named 'print'
matrix8x8:111: error: 'class Adafruit_8x8matrix' has no member named 'setRotation'
matrix8x8:114: error: 'class Adafruit_8x8matrix' has no member named 'setCursor'
matrix8x8:115: error: 'class Adafruit_8x8matrix' has no member named 'print'
- pburgess
- Posts: 4161
- Joined: Sun Oct 26, 2008 2:29 am
Re: Problem compiling example 8x8 LED matrix backpack sketch
Looks like you have the matrix library properly installed, but not the GFX library yet. Make sure you follow the same installation process (confirming folder names & locations, etc.) for the latter library.
-
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- Joined: Sun Nov 03, 2013 4:22 pm
Re: Problem compiling example 8x8 LED matrix backpack sketch
Thanks Guys! It's working great!
-
- Posts: 3
- Joined: Mon Feb 10, 2014 11:19 am
Re: Problem compiling example 8x8 LED matrix backpack sketch
Same problem, differned user...
Hi there, I've installed GFX and LEDBackpack for my Adafruit Bi-Color 8x8 Matrix librarys like:
now ir run Arduino 1.0.5 sketch with sudo privilegs.
when I load the Adafuit 8x8 Bi Color example and start compiling it, I get the following errors:
Whats wrong?
Best Regards
Pfiff
Hi there, I've installed GFX and LEDBackpack for my Adafruit Bi-Color 8x8 Matrix librarys like:
Code: Select all
pfiff@Computersname:~/Arbeitsfläche/arduino-1.0.5/libraries$ git clone https://github.com/adafruit/Adafruit-LED-Backpack-Library
Cloning into 'Adafruit-LED-Backpack-Library'...
remote: Reusing existing pack: 110, done.
remote: Total 110 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (110/110), 68.74 KiB, done.
Resolving deltas: 100% (42/42), done.
pfiff@Computersname:~/Arbeitsfläche/arduino-1.0.5/libraries$ git clone https://github.com/adafruit/Adafruit-GFX-Library
Cloning into 'Adafruit-GFX-Library'...
remote: Reusing existing pack: 78, done.
remote: Total 78 (delta 0), reused 0 (delta 0)
Unpacking objects: 100% (78/78), done.
pfiff@Computersname:~/Arbeitsfläche/arduino-1.0.5/libraries$ mv ./Adafruit-GFX-Library/ ./Adafruit_GFX
pfiff@Computersname:~/Arbeitsfläche/arduino-1.0.5/libraries$ mv ./Adafruit-LED-Backpack-Library/ ./Adafruit_LEDBackpack
pfiff@Computersname:~/Arbeitsfläche/arduino-1.0.5/libraries$
when I load the Adafuit 8x8 Bi Color example and start compiling it, I get the following errors:
I've also downloaded the librarys as ZIP file an installed it manualy, some problem. And I have done it for more than one time./home/pfiff/Arbeitsfläche/arduino-1.0.5/libraries/Adafruit_LEDBackpack/Adafruit_LEDBackpack.cpp: In constructor ‘Adafruit_8x8matrix::Adafruit_8x8matrix()’:
/home/pfiff/Arbeitsfläche/arduino-1.0.5/libraries/Adafruit_LEDBackpack/Adafruit_LEDBackpack.cpp:97: error: no matching function for call to ‘Adafruit_GFX::Adafruit_GFX(int, int)’
/home/pfiff/Arbeitsfläche/arduino-1.0.5/libraries/Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
/home/pfiff/Arbeitsfläche/arduino-1.0.5/libraries/Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
/home/pfiff/Arbeitsfläche/arduino-1.0.5/libraries/Adafruit_LEDBackpack/Adafruit_LEDBackpack.cpp: In constructor ‘Adafruit_BicolorMatrix::Adafruit_BicolorMatrix()’:
/home/pfiff/Arbeitsfläche/arduino-1.0.5/libraries/Adafruit_LEDBackpack/Adafruit_LEDBackpack.cpp:133: error: no matching function for call to ‘Adafruit_GFX::Adafruit_GFX(int, int)’
/home/pfiff/Arbeitsfläche/arduino-1.0.5/libraries/Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
/home/pfiff/Arbeitsfläche/arduino-1.0.5/libraries/Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
Whats wrong?
Best Regards
Pfiff
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: Problem compiling example 8x8 LED matrix backpack sketch
You have to rename the library folders to replace the '-' characters with '_'. For instance "Adafruit_GFX" and "Adafruit_LED_Backpack"
-
- Posts: 3
- Joined: Mon Feb 10, 2014 11:19 am
Re: Problem compiling example 8x8 LED matrix backpack sketch
Have I already done...adafruit_support_rick wrote:You have to rename the library folders to replace the '-' characters with '_'. For instance "Adafruit_GFX" and "Adafruit_LED_Backpack"
I tried it with "Adafruit_LED_Backpack" and "Adafruit_LEDBackpack"
same problem...
my library folder looks like:
Code: Select all
pfiff@Computersname:~/Arbeitsfläche/arduino-1.0.5/libraries$ ls
Adafruit_GFX Adafruit_PWM_ServoDriver Ethernet LiquidCrystal Servo TFT
Adafruit_LED_Backpack AFMotorShield Firmata Robot_Control SoftwareSerial WiFi
Adafruit_MPL115A2 EEPROM GSM Robot_Motor SPI Wire
Adafruit_NeoPixel Esplora keypad_1602 SD Stepper
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: Problem compiling example 8x8 LED matrix backpack sketch
Ah, you have installed your libraries in the wrong location. You have installed them in the system libraries folder. That is not correct.
You must create a new folder, called "libraries", in your sketchbook folder.
You can find the path to your sketchbook folder by opening the "Preferences" dialog in the Arduino IDE.
Please see this page for details:
http://learn.adafruit.com/adafruit-all- ... -a-library
You must create a new folder, called "libraries", in your sketchbook folder.
You can find the path to your sketchbook folder by opening the "Preferences" dialog in the Arduino IDE.
Please see this page for details:
http://learn.adafruit.com/adafruit-all- ... -a-library
-
- Posts: 3
- Joined: Mon Feb 10, 2014 11:19 am
Re: Problem compiling example 8x8 LED matrix backpack sketch
adafruit_support_rick wrote:Ah, you have installed your libraries in the wrong location. You have installed them in the system libraries folder. That is not correct.
You must create a new folder, called "libraries", in your sketchbook folder.
You can find the path to your sketchbook folder by opening the "Preferences" dialog in the Arduino IDE.
Please see this page for details:
http://learn.adafruit.com/adafruit-all- ... -a-library
Thank you, this solved my problem...
-
- Posts: 3
- Joined: Thu Apr 24, 2014 6:43 pm
Re: Problem compiling example 8x8 LED matrix backpack sketch
I am a novice programmer. i started to attempt this example today and i continue to get the error: C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack\Adafruit_LEDBackpack.cpp: In constructor 'Adafruit_8x8matrix::Adafruit_8x8matrix()':
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack\Adafruit_LEDBackpack.cpp:130: error: no matching function for call to 'Adafruit_GFX::Adafruit_GFX(int, int)'
C:\Program Files (x86)\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
C:\Program Files (x86)\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack\Adafruit_LEDBackpack.cpp: In constructor 'Adafruit_BicolorMatrix::Adafruit_BicolorMatrix()':
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack\Adafruit_LEDBackpack.cpp:167: error: no matching function for call to 'Adafruit_GFX::Adafruit_GFX(int, int)'
C:\Program Files (x86)\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
C:\Program Files (x86)\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
I have downloaded the Adafruit_GFX library many times in an attempt to solve this, i put it where it says to, and rename it how it should be named. nothing seems to work! someone please help me...
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack\Adafruit_LEDBackpack.cpp:130: error: no matching function for call to 'Adafruit_GFX::Adafruit_GFX(int, int)'
C:\Program Files (x86)\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
C:\Program Files (x86)\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack\Adafruit_LEDBackpack.cpp: In constructor 'Adafruit_BicolorMatrix::Adafruit_BicolorMatrix()':
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack\Adafruit_LEDBackpack.cpp:167: error: no matching function for call to 'Adafruit_GFX::Adafruit_GFX(int, int)'
C:\Program Files (x86)\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
C:\Program Files (x86)\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
I have downloaded the Adafruit_GFX library many times in an attempt to solve this, i put it where it says to, and rename it how it should be named. nothing seems to work! someone please help me...
- adafruit_support_mike
- Posts: 67485
- Joined: Thu Feb 11, 2010 2:51 pm
Re: Problem compiling example 8x8 LED matrix backpack sketch
That problem isn't your fault. It's a mistake in the Arduino IDE.
Version 1.0.5 of the IDE added support for the Arduino Robot kit, and the code used to control it includes an older version of the Adafruit_GFX library. Even though you've named the library correctly and put it in the correct place, the compiler is ignoring it because the old version lives in its "look here first" path.
The easiest way to solve the problem is to use version 1.0.4 of the IDE. It works perfectly well, and doesn't contain the inconveniently-placed library.
You can also solve the problem in 1.0.5 by going into the IDE's internal library path and deleting the folder named 'RobotControl'.
Version 1.0.5 of the IDE added support for the Arduino Robot kit, and the code used to control it includes an older version of the Adafruit_GFX library. Even though you've named the library correctly and put it in the correct place, the compiler is ignoring it because the old version lives in its "look here first" path.
The easiest way to solve the problem is to use version 1.0.4 of the IDE. It works perfectly well, and doesn't contain the inconveniently-placed library.
You can also solve the problem in 1.0.5 by going into the IDE's internal library path and deleting the folder named 'RobotControl'.
-
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- Joined: Thu Apr 24, 2014 6:43 pm
Re: Problem compiling example 8x8 LED matrix backpack sketch
How can i revert back to the 1.0.4 IDE? i deleted the file names " robot_control" and attempted to verify and compile, and still got an error message... a different one though.. i just dont think im very inclined on this Arduino stuff...
In file included from bicolor8x8.pde:23:
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack/Adafruit_LEDBackpack.h:32:26: error: Adafruit_GFX.h: No such file or directory
In file included from bicolor8x8.pde:23:
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack/Adafruit_LEDBackpack.h:82: error: expected class-name before '{' token
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack/Adafruit_LEDBackpack.h:91: error: expected class-name before '{' token
bicolor8x8.pde: In function 'void loop()':
bicolor8x8:67: error: 'class Adafruit_BicolorMatrix' has no member named 'drawBitmap'
bicolor8x8:72: error: 'class Adafruit_BicolorMatrix' has no member named 'drawBitmap'
bicolor8x8:77: error: 'class Adafruit_BicolorMatrix' has no member named 'drawBitmap'
bicolor8x8:87: error: 'class Adafruit_BicolorMatrix' has no member named 'drawLine'
bicolor8x8:92: error: 'class Adafruit_BicolorMatrix' has no member named 'drawRect'
bicolor8x8:93: error: 'class Adafruit_BicolorMatrix' has no member named 'fillRect'
bicolor8x8:98: error: 'class Adafruit_BicolorMatrix' has no member named 'drawCircle'
bicolor8x8:102: error: 'class Adafruit_BicolorMatrix' has no member named 'setTextWrap'
bicolor8x8:103: error: 'class Adafruit_BicolorMatrix' has no member named 'setTextSize'
bicolor8x8:104: error: 'class Adafruit_BicolorMatrix' has no member named 'setTextColor'
bicolor8x8:107: error: 'class Adafruit_BicolorMatrix' has no member named 'setCursor'
bicolor8x8:108: error: 'class Adafruit_BicolorMatrix' has no member named 'print'
bicolor8x8:112: error: 'class Adafruit_BicolorMatrix' has no member named 'setRotation'
bicolor8x8:113: error: 'class Adafruit_BicolorMatrix' has no member named 'setTextColor'
bicolor8x8:116: error: 'class Adafruit_BicolorMatrix' has no member named 'setCursor'
bicolor8x8:117: error: 'class Adafruit_BicolorMatrix' has no member named 'print'
bicolor8x8:121: error: 'class Adafruit_BicolorMatrix' has no member named 'setRotation'
In file included from bicolor8x8.pde:23:
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack/Adafruit_LEDBackpack.h:32:26: error: Adafruit_GFX.h: No such file or directory
In file included from bicolor8x8.pde:23:
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack/Adafruit_LEDBackpack.h:82: error: expected class-name before '{' token
C:\Program Files (x86)\Arduino\libraries\Adafruit_LEDBackpack/Adafruit_LEDBackpack.h:91: error: expected class-name before '{' token
bicolor8x8.pde: In function 'void loop()':
bicolor8x8:67: error: 'class Adafruit_BicolorMatrix' has no member named 'drawBitmap'
bicolor8x8:72: error: 'class Adafruit_BicolorMatrix' has no member named 'drawBitmap'
bicolor8x8:77: error: 'class Adafruit_BicolorMatrix' has no member named 'drawBitmap'
bicolor8x8:87: error: 'class Adafruit_BicolorMatrix' has no member named 'drawLine'
bicolor8x8:92: error: 'class Adafruit_BicolorMatrix' has no member named 'drawRect'
bicolor8x8:93: error: 'class Adafruit_BicolorMatrix' has no member named 'fillRect'
bicolor8x8:98: error: 'class Adafruit_BicolorMatrix' has no member named 'drawCircle'
bicolor8x8:102: error: 'class Adafruit_BicolorMatrix' has no member named 'setTextWrap'
bicolor8x8:103: error: 'class Adafruit_BicolorMatrix' has no member named 'setTextSize'
bicolor8x8:104: error: 'class Adafruit_BicolorMatrix' has no member named 'setTextColor'
bicolor8x8:107: error: 'class Adafruit_BicolorMatrix' has no member named 'setCursor'
bicolor8x8:108: error: 'class Adafruit_BicolorMatrix' has no member named 'print'
bicolor8x8:112: error: 'class Adafruit_BicolorMatrix' has no member named 'setRotation'
bicolor8x8:113: error: 'class Adafruit_BicolorMatrix' has no member named 'setTextColor'
bicolor8x8:116: error: 'class Adafruit_BicolorMatrix' has no member named 'setCursor'
bicolor8x8:117: error: 'class Adafruit_BicolorMatrix' has no member named 'print'
bicolor8x8:121: error: 'class Adafruit_BicolorMatrix' has no member named 'setRotation'
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: Problem compiling example 8x8 LED matrix backpack sketch
You need to download and install the Adafruit_GFX library:
https://github.com/adafruit/Adafruit-GFX-Library
As noted earlier in this thread, do not intsall libraries in the Arduino libraries folder. Instead, you should have a folder called 'libraries' inside of your sketchbook folder. That is where user libraries belong.
Please see our tutorial on installing Arduino libraries:
https://learn.adafruit.com/adafruit-all ... nstall-use
https://github.com/adafruit/Adafruit-GFX-Library
As noted earlier in this thread, do not intsall libraries in the Arduino libraries folder. Instead, you should have a folder called 'libraries' inside of your sketchbook folder. That is where user libraries belong.
Please see our tutorial on installing Arduino libraries:
https://learn.adafruit.com/adafruit-all ... nstall-use
-
- Posts: 1
- Joined: Fri May 02, 2014 11:07 am
Re: Problem compiling example 8x8 LED matrix backpack sketch
C:\Users\u\Documents\Arduino\libraries\Adafruit_LED\Adafruit_LEDBackpack.cpp: In constructor 'Adafruit_8x8matrix::Adafruit_8x8matrix()':
C:\Users\u\Documents\Arduino\libraries\Adafruit_LED\Adafruit_LEDBackpack.cpp:130: error: no matching function for call to 'Adafruit_GFX::Adafruit_GFX(int, int)'
C:\Program Files\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
C:\Program Files\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
C:\Users\u\Documents\Arduino\libraries\Adafruit_LED\Adafruit_LEDBackpack.cpp: In constructor 'Adafruit_BicolorMatrix::Adafruit_BicolorMatrix()':
C:\Users\u\Documents\Arduino\libraries\Adafruit_LED\Adafruit_LEDBackpack.cpp:167: error: no matching function for call to 'Adafruit_GFX::Adafruit_GFX(int, int)'
C:\Program Files\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
C:\Program Files\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
Any ideas why this is not working with my 8x8 bi color display?
C:\Users\u\Documents\Arduino\libraries\Adafruit_LED\Adafruit_LEDBackpack.cpp:130: error: no matching function for call to 'Adafruit_GFX::Adafruit_GFX(int, int)'
C:\Program Files\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
C:\Program Files\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
C:\Users\u\Documents\Arduino\libraries\Adafruit_LED\Adafruit_LEDBackpack.cpp: In constructor 'Adafruit_BicolorMatrix::Adafruit_BicolorMatrix()':
C:\Users\u\Documents\Arduino\libraries\Adafruit_LED\Adafruit_LEDBackpack.cpp:167: error: no matching function for call to 'Adafruit_GFX::Adafruit_GFX(int, int)'
C:\Program Files\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: candidates are: Adafruit_GFX::Adafruit_GFX(const Adafruit_GFX&)
C:\Program Files\Arduino\libraries\Robot_Control/Adafruit_GFX.h:41: note: Adafruit_GFX::Adafruit_GFX()
Any ideas why this is not working with my 8x8 bi color display?
Please be positive and constructive with your questions and comments.