delay help needed

edit: posted, no longer need help. thank how tried help.


i know, delay question... 

i have been trying days remove delay , replace millis. have looked through many tutorials , can't figure out make changes. have following, doesn't scan correctly.

this larson scanner code on mega, leds, resistors...

please help!!!  thank you!!!

code: [select]

int scanpinarray[] = {36,37,38,39,40,41,42,43,44,45};
int scanlen = 9 ; // sizeof(scanpinarray) / sizeof(int);
int scandir = 1;


void setup()
{
for (int scanpin = 0; scanpin < scanlen; scanpin++)pinmode(scanpinarray[scanpin], output);
}

void pulse_width_modulation(int pos)
{
 if(scandir==1)
 {
   scandir = 0;
   for (int scanled=scanlen; scanled>0; --scanled)fadein(scanled);
 }
 else{
   scandir = 1;
   for (int scanled=0; scanled<scanlen; ++scanled)fadein(scanled);
 }
}

void fadein(int pos)
{
 for(int bri = 150; bri < 256; ++bri)
 { if (millis() > scantimermillis1){
    if(scandir==1 && pos>0)analogwrite(scanpinarray[pos-1], 255-bri);
    if(scandir==0 && pos<scanlen)analogwrite(scanpinarray[pos+1], 255-bri);   
    analogwrite(scanpinarray[pos], bri);
    scantimermillis1 = millis() + 700; }
 //   delaymicroseconds(700);
   
 } 
}

void loop() {
 static uint8_t pos=0;
 while(pos<scanlen)
 {
     pulse_width_modulation(pos);
     ++pos;
 }
 while(pos>0)
 {
     --pos;
     pulse_width_modulation(pos);
 }
}


several things wrong this:-
1) no code tags !!! - read "how use forum sticky post".
2) have not said hardware nor have posted schematic - read "how use forum sticky post".
3) not code supposed , - read "how use forum sticky post".

so if want - read "how use forum sticky post".

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