DC Motor & L293D

hi!
i wondered if somesone me solve problem

i want program arduino uno in order control system consists in window opens automatically whenever there not enough sun , closes automatically @ night.
if there enough sun window not open.

so in other words resume following:

1. if window opens in morning  ( lets weather not sunny) cause ldr system has, must receive sun, window must close @ night.
2. if windows not open, will not close.

i submit image of circuit using , arduino's program

diagram


program

code: [select]

int valor_luz=0;
int entradamotor1 = 4;
int entradamotor2 = 5;

void setup()
{  
pinmode(entradamotor1, output);
pinmode(entradamotor2, output);
pinmode(2, output);  // pin led
serial.begin(9600);


 valor_luz=analogread(a4);
 delay (500);
 
 if (valor_luz>410) // if ldr receives light led not turn on
 digitalwrite (2,high);  
 if (valor_luz<410) // if ldr not receive light led turn on
 digitalwrite (2,low);
     
 if (valor_luz>410 ) // 2v
 {  

   subir (2000);
   neutral (2000);
   bajar (1000); //this intruction continues executing indefinetely. not respect parameter has time "1000 ms"
 
 }
 
 
}

void loop()
{
}


void subir (int w)
{
digitalwrite(entradamotor1,high);
digitalwrite(entradamotor2,low);
delay(w);
}
 
void neutral (int x)
{
digitalwrite(entradamotor1,low);
digitalwrite(entradamotor2,low);
delay (x);
}

void bajar (int y)
{
digitalwrite(entradamotor1,low);
digitalwrite(entradamotor2,high);
delay(y);
}




as can see typed of code in setup area cause read in 1 topic here @ forum if did not wanted use loops, had place program in setup part , leave loop part blank.

the circuit works ldr produces voltage depending of sun light receives.
then, thank output, voltaje goes through opam , voltage duplicated opam configuration. output voltage of opam conected arduino's analog input a4 , in other part, 2 terminals conected in order enable different combinations work h bridge in order control motor connected it.

one of other things saw if left program in loop part whenever program executed itself, excuted again , again... caused motor kept turning , never stop, if light went trough ldr corret have more 2v, voltage should had worked arduino in order stop motor working , close window @ night.
so wondered if placing code in setup space worked me, did not work either...


thanks in advance  

hi,
   your problem arduino resetting due insufficient or noisey power.

what using power ?

is there decoupling on power between motors , arduino ?

are putting same voltage 293 through vss , vs ?

duane b

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