Micro servomotors MG90S and SG90 - product presentation

In this video, we would like to introduce you to the Servos MG90S and SG90. As part of the video, the technical specifications and differences between the two variants are explained. In addition, we show several sample circuits to show how the servos can be used and how the cabling works.

Here you will find the servos presented:

MG90S micro servo engine

SG90 micro servo engine

Wiring SG90 Example:

Code SG90 Example:

/*
    ___ _____        ____       ___                      
   /   /__  /       / __ \___  / (_)   _____  _______  __
  / /| | / / ______/ / / / _ \/ / / | / / _ \/ ___/ / / /
 / ___ |/ /_/_____/ /_/ /  __/ / /| |/ /  __/ /  / /_/ / 
/_/  |_/____/    /_____/\___/_/_/ |___/\___/_/   \__, /  
                                                /____/   
 Product, data sheet and Pinout at:
  https://www.az-delivery.de/

 Project: MG90S and SG90S Servo
 Date: 03/2022

*/

#include <ESP32Servo.H>

Servo MG90SServo;
Servo SG90Sevro;

intimately Servopinmg90s = 14;
intimately Servopinsg90 = 25;

void set up() {
  Serial.Begin(115200);
  delay(250);

  MG90SServo.setperiodhertz(50);    
	MG90SServo.Attach(Servopinmg90s); 

  SG90Sevro.setperiodhertz(50);    
	SG90Sevro.Attach(Servopinsg90); 

  MG90SServo.write(0);
  SG90Sevro.write(0);
 
}

void loop() {

 IF (Serial.Available()) {
    String Indata = "";
    Indata = Serial.reap('\ n');
    IF (Indata.start -up("M")) {
      serverotation(MG90SServo);
    }
    Else IF (Indata.start -up("U")) {
      serverotation(SG90Sevro);
    }
 }
 
}

void serverotation(Servo function servo){
  for (intimately I = 0; I <= 180; I += 5) {
    // servo position is set in 20 ° steps
    function servo.write(I);
    Serial.print("Servo position:");
    Serial.print(I);
    delay(300);
  }
}

Code scissors stone paper (MG90S or SG90):

/*
    ___ _____        ____       ___                      
   /   /__  /       / __ \___  / (_)   _____  _______  __
  / /| | / / ______/ / / / _ \/ / / | / / _ \/ ___/ / / /
 / ___ |/ /_/_____/ /_/ /  __/ / /| |/ /  __/ /  / /_/ / 
/_/  |_/____/    /_____/\___/_/_/ |___/\___/_/   \__, /  
                                                /____/   
 Product, data sheet and Pinout at:
  https://www.az-delivery.de/

 Project: MG90S and SG90S Servo
 Date: 03/2022

*/

#include <ESP32Servo.H>

String bot ="";
// servo
const uint8_t Servo_num = 3;
Servo servoaray[Servo_num];  
uint8_t servopins[Servo_num]={14,27,26};
const uint8_t output = 70;
String selection[Servo_num] = {"scissors", "stone", "paper"};

// Ultrasonic sensor
const uint8_t trigpin = 5;
const uint8_t echopin = 18;
#define Sound_speed 0.034
long duration;
float distance;

Bool intervenes(){
  //Measurement
  digital(trigpin, Low);
  Delaymicroseconds(2);
  digital(trigpin, HIGH);
  Delaymicroseconds(10);
  digital(trigpin, Low);

  duration = pulse(echopin, HIGH);
  // calculate the distance
  distance = duration * Sound_speed/2;

  return (distance<=10);
}

void set up() {
  Serial.Begin(115200);

  // set up servos
  for (uint8_t I = 0; I < Servo_num; I++) {
      servoaray[I].setperiodhertz(50);
      servoaray[I].Attach(servopins[I]);
      servoaray[I].write(output);
      Serial.print(I);
  }

  // Ultrasonic
  pin mode(trigpin, OUTPUT); 
  pin mode(echopin, Input); 
}

void loop() {
    IF(intervenes()) {
          uint8_t random number = random(0,Servo_num);
          bot=selection[random number];
          servoaray[random number].write(0);
          // servo write

          // debug
          Serial.print("Bot:");
          Serial.print(bot);
          Serial.print("--------------------");
          delay(3000);

          servoaray[random number].write(output);
      }
}