5k is fine.
As TomGeorge said, you need to adapt your code for each pot.
Each pot needs a zero point and two span ranges mapped to 0-255.
Start with simple code that reads the A/D value of the pot.
Find the A/D value of the center position.
Find the values of the two extremes.
Pick a dead-band range, e.g. +/- 8.
Map the two spans you have to 0-255.
Leo..
#include <AFMotor.h>
AF_DCMotor motor1(4); //H-Bridge Ch 4
AF_DCMotor motor4(1); //H-Bridge Ch 1
AF_DCMotor Laser(2); //H-Bridge Ch 2
const int y = A4;
const int x = A5;
int y1 = 0; //speed of y "pitch" axis
int y2 = 0; //Raw Anaogue in of y Pot
int x1 = 0; //Speed of x "yaw" axis
int x2 = 0; //Raw analogue in of x pot
int y3 = 0; //Forward Speed Map (Y axis)
int y4 = 0; //Backwards Speed Map (Y axis)
int x3 = 0; //Forward Speed Map (X axis)
int x4 = 0; //Backwards Speed Map (X axis)
void setup()
{
pinMode(y2, INPUT);
pinMode(x2, INPUT);
// initialize serial communications at 9600 bps:
Serial.begin(9600);
}
void loop()
{
//Motor Directions as Specified in AFMotor.h
int a = FORWARD;
int b = BACKWARD;
int c = RELEASE; //Motor brake
{
y2 = analogRead(y);
y1 = map(y2, 300, 600, 0, 255);
y3 = map(y1, 140, 0, 0, 255);
y4 = map(y1, 160, 0, 0, -255);
//Point down
if(y1 < 140)
{
motor4.setSpeed(y3);
motor4.run(b);
}
//Point Up
else if (y1 > 160)
{
motor4.setSpeed(y4);
motor4.run(a);
}
//Brake
else {
motor4.setSpeed(0);
motor4.run(c);
}
{
x2 = analogRead(x);
x1 = map(x2, 400, 700, 0, 255);
x3 = map(x1, 130, 0, 0, 255);
x4 = map(x1, 150, 0, 0, -255);
//Point Left
if(x1 < 130)
{
motor1.setSpeed(x3);
motor1.run(b);
}
//Point Right
else if (x1 > 150)
{
motor1.setSpeed(x4);
motor1.run(a);
}
//Brake
else {
motor1.setSpeed(0);
motor1.run(c);
}
{
// read the input on analog pin 3:
int sensorValue = analogRead(A3);
// Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V):
float voltage = sensorValue * (5.0 / 1023.0);
{
if (voltage > 3) // Activates Laser Pointer when switch is triggered
{
Laser.setSpeed(150);
Laser.run(b);
}
else
{
Laser.run(c);
}
}
}
// print the results to the serial monitor:
Serial.print("\t y 2 = ");
Serial.print(y2);
Serial.print("\t y 1 = ");
Serial.println(y1);
Serial.print("\t y3 = ");
Serial.print(y3);
delay(2);
}
}
}
Thankyou both for all your Help this is what your meaning yeah? it works now perfectly with your suggestions
Example.
If you mechanically adjust/rotate the pot, so that the center postion of the joystock is about A/D value 512.
And you want a +/- 8 deadband.
And the pot extremes are 100 and 923.
potRaw = analogRead(A4);
goleft = map(potRaw, 508, 100, 0, 255);
goright = map(potRaw, 520, 923, 0, 255);
Leo..
Wawa:
Example.
If you mechanically adjust/rotate the pot, so that the center postion of the joystock is about A/D value 512.
And you want a +/- 8 deadband.
And the pot extremes are 100 and 923.potRaw = analogRead(A4);
goleft = map(potRaw, 508, 100, 0, 255);
goright = map(potRaw, 520, 923, 0, 255);Leo..
Thanks so much for your help Leo So are you suggesting I close up the dead band from 20 down to 8 yeah? cause the Pot extremes aren't reached when its assembled so I'm having to account for this in the code..