While creating a test program for an microtronics board (used in reprap), i first tried it out on an uno first, so I selected the uno board, then uploaded and and i got these errors. they are a bit strange seam to indicate that use setup twice or so but i dont do that see below:


Compiling 'minitronicstest' for 'Arduino Uno'
minitronicstest.ino:In function 'void setup()'
LedTest.ino:7:6: error: redefinition of 'void setup()'
minitronicstest.ino:90:6: error: 'void setup()' previously defined here
minitronicstest.ino:At global scope
LedTest.ino:18:15: error: redefinition of 'long unsigned int prevMillis'
minitronicstest.ino:175:15: error: 'long unsigned int prevMillis' previously declared here
LedTest.ino:In function 'void loop()'
LedTest.ino:19:6: error: redefinition of 'void loop()'
minitronicstest.ino:177:6: error: 'void loop()' previously defined here
Error compiling

#
this was my test code

int PWMpin[]= {3,5,6,9};
int UsePin[]= {13,12,11,10};
int MaxTime =10;
int PWMcntr[]= {0,0,0,0};


void setup() {
  Serial.begin(9600);
  Serial.print("Starting...\n");

  delay(4000); // it takes 3 sec to start Bridge, i am just on safe side. that was for an older experiment
  for (int pinX=0;pinX<4;pinX++)
       {
       pinMode(UsePin[pinX],OUTPUT);
       }
}

unsigned long prevMillis;
void loop() {
     prevMillis = millis();
     if (prevMillis %100 <50) {digitalWrite(UsePin[0], HIGH);} else{digitalWrite(UsePin[0], LOW);}
     if (prevMillis %1000 <750) {digitalWrite(UsePin[1], HIGH);} else{digitalWrite(UsePin[1], LOW);}
     if (prevMillis %4000 <2050) {digitalWrite(UsePin[2], HIGH);} else{digitalWrite(UsePin[2], LOW);}
     }