I was working on a program with an LED 5 X 7 dot matrix for my Arduino pro micro. There was a program that worked on the dot matrix and I was just making it simpler using arrays and such.
I just finished the setup and added one command in the loop just to turn on one led for testing. So I uploaded the code and I got a error stating "Serial port on COM 5 not found" even though just before I uploaded a different code.
So I did the usual... restarted Arduino, and I still got the same error.
Then I realized windows 8 was giving a bubble at the bottom right side of the screen saying "USB device not Recognized" so I figured maybe the drivers got messed up. I went to the device manager and saw unknown device (figuring that was Arduino) so I tried to update drivers with the copy of the pro micro drivers I already had. It said that the drivers were up to date. Just to make sure I uninstalled the drivers completely and downloaded a fresh copy from the Arduino website. Still it didn't work.
By this point I thought that my computer was having issues, so I tried it on my friends windows 7 computer, it still didn't work. Me and my friend figured we should move on. So my friend, who has been programming his pro micro on his own laptop with a different cable, uploaded my led dot matrix program to his pro micro when it wasn't attached to anything (it wasn't on a breadboard, so it wasn't an issue with wiring on the breadboard) and the SAME thing started happening to his Arduino pro micro.
I have NO idea what the problem is, maybe, somehow, it is some weird issue with the code... Here is the code that I uploaded:
//rows
const int dotr1 = 5;
const int dotr2 = 4;
const int dotr3 = 6;
const int dotr4 = 7;
const int dotr5 = 15;
const int dotr6 = 3;
const int dotr7 = 2;
//columns
const int dotc1 = 9;
const int dotc2 = 8;
const int dotc3 = 10;
const int dotc4 = 16;
const int dotc5 = 14;
//extra
const int dt = 1;//for scrolls
const int timeDelay2 = 20000;//micsec//for weave
const int repetitions = 2;//scrolls
const int repetitions2 = 20;//weaves
const int scrollRate = 1;//timedelay2*scroll= duration of weave
int currentStep = 0;
const int frame1r[] = {4,0};
const int frame1c[] = {3,0};
const int frame2r[] = {3,3,3,4,4,5,5,5,0};
const int frame2c[] = {2,3,4,2,4,4,3,4,0};
const int frame3r[] = {2,2,2,3,3,4,4,5,5,6,6,6,0};
const int frame3c[] = {2,3,4,1,5,1,5,1,5,2,3,4,0};
const int frame4r[] = {1,1,1,2,2,6,6,7,7,7,0};
const int frame4c[] = {2,3,4,1,5,1,5,2,3,4,0};
const int high = LOW;
const int low = HIGH;
void setup()
{
for(int i = 2; i < 11; i++)
{
pinMode(i, OUTPUT);
}
pinMode(15, OUTPUT);
pinMode(14, OUTPUT);
pinMode(16, OUTPUT);
//for rows
digitalWrite(dotr1,high);
digitalWrite(dotr2,high);
digitalWrite(dotr3,high);
digitalWrite(dotr4,high);
digitalWrite(dotr5,high);
digitalWrite(dotr6,high);
digitalWrite(dotr7,high);
//for columns
digitalWrite(dotc1,low);
digitalWrite(dotc2,low);
digitalWrite(dotc3,low);
digitalWrite(dotc4,low);
digitalWrite(dotc5,low);
}
void loop(){
for(int i = 0; i < scrollRate; i++){
digitalWrite(frame1r[currentStep], low);
digitalWrite(frame1c[currentStep], high);
delay(dt);
}
}
If someone has had this issue or knows a possible way to fix it please help.
