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Here a fonction to read an analog port and compare it to two value.
Entrie are the nummer of analog entrie (0..7). The function return 0 if
lower than the first value, 1 if between the two and 2 if greater than the
second.
Comment and variable names are in French.
/* Couleurs : */
#define BLANC 0
#define VERT 1
#define NOIR 2
/* Seuils de détection de couleurs : */
#define SEUILVERT 20
#define SEUILNOIR 230
/***************************************************************************
***/
/* Fonction : Couleur().
Objet : Renvoyer la couleur lue par un capteur.
Entrée : Numéro du capteur (0..7).
Sortie : Couleur.
*/
/***************************************************************************
***/
int Couleur(int i_Capteur)
{
return (analog(i_Capteur)>SEUILVERT) + (analog(i_Capteur)>SEUILNOIR); /*
tests additionnés (true=1, false=0) */
}
/* sample main */
void main()
{
ao(); /* ensure that motor are off */
printf("%d\n", Couleur(0));
while(1); /* prevent the processor to exit main and execute garbage
code*/
}
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Message is in Reply To:
 | | Sample Code
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| I am a beginner programmer, and I am having a little trouble getting started. I have an analog input that I need to compare to some values stored in memory. If anyone has a similar program that I could reference, I would really appreciate it. Or if (...) (23 years ago, 15-Mar-01, to lugnet.robotics.handyboard)
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