Introduction:
A servo motor allows for precise control of servo position. It consists of a suitable motor coupled to a sensor for position feedback. It also requires a relatively sophisticated controller, an enclosure, a PCB and gears.
There are two ways for Arduino to control the engine. This time, we directly use servo function that comes with Arduino to control the engine.
Hardware required:
- Arduino Board *1
- USB Cable *1
- Potentiometer*1
- 9G Servo Motor*1
- Breadboard *1
- Breadboard Jumper Wires
- Male to Female Dupont Line
Connection for REV4:
Connection for 2560 R3:
Sample Code:
#include <Servo.h>
Servo myservo;//define steering engine variable
int servo =0;
void setup()
{
Serial.begin(9600); // 9600 bps
myservo.attach(9);//define steering engine interface（alternative 9 and 10 but just able to control 2interfaces）
}
void loop()
{
servo=map ( analogRead(0) , 0 , 1023 , 0 , 180 ) ;
Serial.println(servo ,DEC);
myservo.write(servo);//set rotating angle
delay(50);
}
Result:
After connection and uploading codes, rotate potentiometer knob to adjust the engine’s rotating angle;open serial monitor, and we can see the value of rotating angle.
