Control two servo

Using Arduino Programming Questions
#1

Hello guys

To control the movement of my robot, I have written the follow code (I have 2 servo 360°).

#include <Servo.h>

Servo ruotadestra;
Servo ruotasinistra;

void setup() {
Serial.begin(9600);
ruotasinistra.attach(9);
ruotadestra.attach(10);

}

void loop() {
int i, j;
i=j=1500;
while (i>500 && j<2500) {
ruotadestra.writeMicroseconds(i);
ruotasinistra.writeMicroseconds(j);
i-=100;
j+=100;

}
}

The problem is that, for each iteration, the board loses the connection. I have understood that it is a error in codes, but I don’t understand what. Can you help me?
Thank you!

#2

The problem is that, for each iteration, the board loses the connection.

Each iteration of what? How can the board loose connection with the servo?

#3

The problem is that, for each iteration, the board loses the connection. I have understood that it is a error in codes, but I don't understand what. Can you help me? Thank you!

Are you powering your servos from the arduino? If so, this usually causes the arduino to crash and reset.

#4

Yes, thank you for the help!!
I’ve read that Arduino should never have dual power. Then how can I feed the servo and at the same time to program them?

#5

Just use a four AA pack for the servos, and use whatever you're using at the moment to power the Arduino (I'll assume it isn't a 9V radio battery) Connect the grounds together.

#6

Basic arduino servo wiring attached.

servo-wire.jpg

#7