Proteus potentiometer value always highest

Question

proteus schematic

#include <Servo.h>
#define potpin A0
int savebutton=2;
int button1=3;
int button2=4;
int button3=5;
Servo servo1;
Servo servo2;
Servo servo3;
int servo1ipos=90; 
int servo2ipos=90;
int servo3ipos=90;
int val=0;
void setup() {
 // put your setup code here, to run once:
 Serial.begin(9600);
 pinMode(savebutton,INPUT);
 pinMode(button1,INPUT);
 pinMode(button2,INPUT);
 pinMode(button3,INPUT);
 servo1.attach(6);
 servo2.attach(7);
 servo3.attach(8);
 servo1.write(servo1ipos);
 servo2.write(servo2ipos);
 servo3.write(servo3ipos);
}
void loop() {
 // put your main code here, to run repeatedly:
 servocontrol();
}
int servocontrol(){
 if(digitalRead(button1)==LOW){
 potvalue();
 Serial.println(val);
 servo1.write(val);
 delay(200);
 }
}
int potvalue(){
 val=analogRead(potpin);
}

Basicly I only read 1023 value instead of potentiometer value I couldnt figure it out need help.

Update: I came up solution by connecting 5V into Arduino's VCC pin.

• Mat: I don't know Proteus - does it automagically connect the VCC and GND pins of the Uno to sensible nets?
• Raybom: @Mat yes also you can see from voltmeter I can change voltage with potentiometer.
• Raybom: @Mat I dont know you mentioned about VCC on arduino but yeah I solve the problem with connecting 5V into Arduino's VCC pin. Thanks.
• the busybee: Please take the tour to learn how this site works. Especially, please don't mark a question with "[SOLVED]", this is not a forum. Instead, write an own answer and mark, after you are allowed to do it. Visitors select answered question after the number of answers and the green mark, not by the title.
• Dave X: Oh, you put your solution as the comment on your edit--that makes it very difficult to see. You should write up your work as an answer, and give yourself a green checkmark for solving your own problem. Or at the very least, copy your edit summary message into your question.

Answer 1

I came up solution by connecting 5V into Arduino's VCC pin.