Weekday Arduino Project #1

LCD Screen Reads Out Servo Angle

The Project:
Create an Arduino project that steadily increases the angle of a servo, and prints the angle on an LCD screen.

Pictures:

Why?:
This is a tester for a long-term project that I am working on currently.

What you need:

1. Arduino Uno board
2. 16 pin 16x2 LCD screen
3. 3 pin servo
4. 10k ohm potentiometer
5. 220 ohm resistor
6. Breadboard
7. Arduino software

The Schematic:

The Code:

// Include the library code:

#include <LiquidCrystal.h>

#include <Servo.h>

// Initialize the library by associating any needed LCD interface pin

// With the arduino pin number it is connected to

// Const ints

const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;

const int numRows = 2;

const int numCols = 16;

// Ints

int potpin = 0;

int val;

int count  = 0;

// Create servo object to control servo

Servo myservo;

// Set up LCD display

LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {

 // Set up the LCD's number of columns and rows:

 lcd.begin(numCols, numRows);

 Serial.begin(9600);

 myservo.attach(9);

}

Void loop(){

 // Refresh the display

 lcd.clear();

 lcd.display();

 // Set display

 lcd.setCursor(0,0);

 

 // Math for Servo

 count = (count + 1);

 Serial.print(count);

// Reset counter if it reaches 1000

 if (count == 1000){

   count = 0;

}

 // Convert and write to servo

 val = map(count,0,1000,0,180);

 myservo.write(val);

 

 // Print angle on LCD

 lcd.print(val);

 delay(50);

}

Feel free to contact me if you have any questions!