Arduino Servo

arduino-uno-s3003-servo.c

/*
 * Arduino pin 9 -> S3003 PWM(orange)
 * Arduino 5V    -> S3003 VCC(red)
 * Arduino GND   -> S3003 GND(brown)
 */

#include <Servo.h>

Servo servo;

int servoPin = 9;
int pos = 0;

void setup() {
  servo.attach(servoPin);
}

void loop() {
  for(pos = 0; pos < 180; pos += 1) {
    servo.write(pos);
    delay(20);
  }
  
  for(pos = 180; pos >= 1; pos -= 1) {
    servo.write(pos);
    delay(20);
  }  
}

bluetooth-with-servo-in-arduino-uno.c

#include <Servo.h>

Servo servo;
int servoPin = 9;

void setup() {
  Serial.begin(9600);  
  servo.attach(servoPin);
}

int deg = 0;
void loop(){
  if(Serial.available()) {
    deg = Serial.parseInt();
  }
  
  if(deg >= 0 && deg <= 180) {
    servo.write(deg);
    delay(20);  
  } else {
    Serial.write("bad request");
  }
  
  delay(100);
}

uno-jy-mcu-bluetooth.c

/*
 * Connet JY-MCU Bluetooth with arduino
 * Rx -> Tx
 * Tx -> Rx
 * 5v -> 5v
 * Gnd -> Gnd
 */
 
int value;
int led = 13;

void setup() {
  Serial.begin(9600);  
  pinMode(led, OUTPUT);
}

void loop(){
  if(Serial.available()) {
    value = Serial.read();
  }
  
  if(value == 'H') {
    digitalWrite(led, HIGH);
  } else {
    digitalWrite(led, LOW);
  }
  
  delay(100);
}