Arduino Motor Shield Speed Control

[philli3]

Hi all, I am facing this problem while trying to get motor speed control done on my arduino project.

I have created a java applet to send these signals to my arduino board:
w - Forward
a - Left
s - Reverse
d - Right
z - Low Speed
x - Normal Speed
c - High Speed

how can i assign each speed to my determined direction control in my arduino codes ?

this is how my codes look like:

int value = 255;

void loop(){
char id = Serial.read();

switch (id){
//Move Forward
case 'w':
digitalWrite(M1,HIGH);
digitalWrite(M2,LOW);
// analogWrite(E1,value);
// analogWrite(E2,value);
Serial.println("Move Forward");
break;

case 'z':
Serial.println("Low Speed");
analogWrite(E1,value-100);
analogWrite(E2,value-100);
break;

All the codes are working, just that i dont know how to assign the speed control to each direction.
Thanks in advance.

[ABSF]

At case 'z'

case 'z':
Serial.println("Low Speed");
value = value-100;
analogWrite(E1,value);
analogWrite(E2,value);
break;

Then the speed value at case ''w' would be the current value.
If you need different speeds for w, a, s, d then you'll have to define 4 different speed values for each direction.

Allen

[philli3]

Million thanks for the information

I have found what my problem is, thanks again