Circuit Documentation

Summary of the Circuit

This circuit consists of an Arduino UNO microcontroller board that is used to control a servo motor. The servo motor is connected to the Arduino UNO via three connections: power (5V), ground (GND), and control signal (pulse). The control signal is provided through one of the digital I/O pins of the Arduino UNO (pin D9). The Arduino UNO is programmed to move the servo motor smoothly between 0 and 180 degrees, creating a sweeping motion.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0-A5, SCL, SDA, AREF, D0-D13.
• Purpose: Acts as the main controller for the circuit, providing logic and control signals to the servo motor.

Servo Motor

• Description: An actuator that can be precisely controlled for angular or linear position, velocity, and acceleration.
• Pins: gnd, vcc, pulse.
• Purpose: Executes physical movements based on control signals from the Arduino UNO.

Wiring Details

Arduino UNO

• 5V connected to Servo Motor VCC.
• GND connected to Servo Motor GND.
• D9 connected to Servo Motor Pulse.

Servo Motor

• VCC connected to Arduino UNO 5V.
• GND connected to Arduino UNO GND.
• Pulse connected to Arduino UNO D9.

Documented Code

/*
 * This Arduino sketch controls a servo motor connected to pin D9 of an Arduino UNO.
 * The servo will smoothly move between its open and closed positions.
 */

#include <Servo.h>

Servo myServo;  // create servo object to control a servo

void setup() {
  myServo.attach(9);  // attaches the servo on pin 9 to the servo object
}

void loop() {

  // Move servo from 0 to 180 degrees
  for (int pos = 0; pos <= 180; pos += 1) {
    myServo.write(pos);  // move servo to 'pos' degrees
    delay(15);           // wait for 15 milliseconds to create a smooth motion
  }

  // Move servo from 180 to 0 degrees
  for (int pos = 180; pos >= 0; pos -= 1) {
    myServo.write(pos);  // move servo to 'pos' degrees
    delay(15);           // wait for 15 milliseconds to create a smooth motion
  }
}

Filename: sketch.ino

Description: The code defines the behavior of the servo motor connected to the Arduino UNO. It includes the Servo library and defines a Servo object named myServo. In the setup() function, the servo motor is attached to digital pin 9. The loop() function contains two for loops that move the servo motor from 0 to 180 degrees and back, with a 15-millisecond delay between each degree to create a smooth motion.