I'm trying to make a pan/tilt system where there's a dead zone in the middle of a joystick, and moving it to the left or right makes a servo move up/down and left/right. My pan (x plane) servo works perfectly, and I tried to copy that code to the Y axis servo, but it jitters, drifts, and jumps erratically. Can anyone spot an error? Thanks!
#include <Servo.h>
int servoPos1 = 90; //starting pos for x
int servoPos2 = 50; //starting pos for y
int joyStickPinx = A0; //x pin for joystick
int joyStickPiny = A1; //y pin for joystick
int refreshTime = 20; // make this smaller to make servo move faster
Servo pan; //fairly obvious
Servo tilt;
void setup() {
pan.attach(9); //setup
tilt.attach(10);
}
void loop() {
int joyReadx = analogRead(joyStickPinx); //read x joystick
int joyReady = analogRead(joyStickPiny); //read y joystick
joyReadx = map(joyReadx, 0, 1023, 3, -3); //map x values
joyReady = map(joyReady, 0, 1023, 3, -3); //map y values
servoPos1 += joyReadx; //honestly not sure of these two lines, they were in the code I copied
servoPos2 += joyReady;
constrain(servoPos1, 0, 180); //Assuming this is what holds the servos in position
constrain(servoPos2, 0, 180);
pan.write(servoPos1);
tilt.write(servoPos2);
delay(refreshTime);
}
