#include <ESP32Servo.h>

Servo servo0;  
Servo servo1;  
int pos1 = 0;  
int pos2 = 0;  

void setup() {
  Serial.begin(9600);
  servo0.attach(D0);
  servo1.attach(D1);
  servo0.write(0);
  servo1.write(0);
}

void loop() {
  if (Serial.available() > 0) {
    int servoNumber = Serial.parseInt();
    int inputAngle = Serial.parseInt();
    
    if (servoNumber == 0 && inputAngle = 0 && inputAngle <= 180) {
      pos1 = inputAngle;
      servo0.write(pos1);
      Serial.println(pos1);
    } else if (servoNumber == 1 && inputAngle = 0 && inputAngle <= 180) {
      pos2 = inputAngle;
      servo1.write(pos2);
      Serial.println(pos2);
    } 
  }
}
background code
