Arduino Potentiometer Controlled Text Display on LCD 16x2

This project is going to tell How to display the potentiometer controlled text on LCD. With this, you can also display sensor value on LCD.

Jun 5, 2022

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Components and supplies

Arduino UNO

Resistor 1k ohm

Breadboard (generic)

Jumper wires (generic)

Alphanumeric LCD, 16 x 2

Rotary potentiometer (generic)

Apps and platforms

Arduino IDE

LiquidCrystal.h Library

Project description

Code

COde

c_cpp

1/*
2Inventor DIY Inventor (Krishna Agarwal)
3Coder DIY Inventor (Krishna  Agarwal)
4Designer DIY Inventor (Krishna Agarwal)
5*/
6
7
8
9#include  <LiquidCrystal.h>
10int sensorValue = 0;
11
12// initialize the library with  the numbers of the interface pins
13LiquidCrystal lcd(11, 10, 5, 4, 3, 2);
14
15void  setup() 
16{
17  pinMode(A0, INPUT);
18  // set up the LCD's number of columns  and rows:
19  lcd.begin(16, 2);
20  Serial.begin(9600);
21 lcd.begin(16,2);
22  lcd.print("Starting System");
23   delay(1000);
24lcd.clear();
25lcd.print("System  On");
26   delay(1500);  
27  
28lcd.clear();
29
30}
31
32void loop() 
33{
34  
35
36  sensorValue = analogRead(A0);
37  Serial.println(sensorValue);
38
39
40
41
42  if (sensorValue>= 0 && sensorValue <=200 ){
43
44    lcd.setCursor(0,0);
45  lcd.print("  DIY Inventor  ");
46    lcd.setCursor(0,1);
47    lcd.print("0  to 200    ");  
48  lcd.setCursor(13,1);
49lcd.print(sensorValue);  
50
51
52}
53
54  else if (sensorValue>= 201 && sensorValue <=400 ){
55
56    lcd.setCursor(0,0);
57  lcd.print("  DIY Inventor  ");
58    lcd.setCursor(0,1);
59    lcd.print("200  to 400  ");  
60  lcd.setCursor(13,1);
61lcd.print(sensorValue);  
62/// lcd.clear();
63
64}
65
66  else if (sensorValue>= 401 && sensorValue <=600 ){
67
68    lcd.setCursor(0,0);
69  lcd.print("  DIY Inventor  ");
70    lcd.setCursor(0,1);
71    lcd.print("400  to 600  ");  
72  lcd.setCursor(13,1);
73lcd.print(sensorValue);  
74/// lcd.clear();
75
76}
77  else if (sensorValue>= 601 && sensorValue <=800 ){
78
79    lcd.setCursor(0,0);
80  lcd.print("  DIY Inventor  ");
81    lcd.setCursor(0,1);
82    lcd.print("600  to 800  ");  
83  lcd.setCursor(13,1);
84lcd.print(sensorValue);  
85/// lcd.clear();
86
87}
88
89
90  else if (sensorValue>= 801 && sensorValue <=1000 ){
91
92    lcd.setCursor(0,0);
93  lcd.print("  DIY Inventor  ");
94    lcd.setCursor(0,1);
95    lcd.print("800  to 1000  ");  
96  lcd.setCursor(13,1);
97lcd.print(sensorValue);  
98/// lcd.clear();
99
100}
101
102}
103

/*
Inventor DIY Inventor (Krishna Agarwal)
Coder DIY Inventor (Krishna  Agarwal)
Designer DIY Inventor (Krishna Agarwal)
*/



#include  <LiquidCrystal.h>
int sensorValue = 0;

// initialize the library with  the numbers of the interface pins
LiquidCrystal lcd(11, 10, 5, 4, 3, 2);

void  setup() 
{
  pinMode(A0, INPUT);
  // set up the LCD's number of columns  and rows:
  lcd.begin(16, 2);
  Serial.begin(9600);
 lcd.begin(16,2);
  lcd.print("Starting System");
   delay(1000);
lcd.clear();
lcd.print("System  On");
   delay(1500);  
  
lcd.clear();

}

void loop() 
{
  

  sensorValue = analogRead(A0);
  Serial.println(sensorValue);




  if (sensorValue>= 0 && sensorValue <=200 ){

    lcd.setCursor(0,0);
  lcd.print("  DIY Inventor  ");
    lcd.setCursor(0,1);
    lcd.print("0  to 200    ");  
  lcd.setCursor(13,1);
lcd.print(sensorValue);  


}

  else if (sensorValue>= 201 && sensorValue <=400 ){

    lcd.setCursor(0,0);
  lcd.print("  DIY Inventor  ");
    lcd.setCursor(0,1);
    lcd.print("200  to 400  ");  
  lcd.setCursor(13,1);
lcd.print(sensorValue);  
/// lcd.clear();

}

  else if (sensorValue>= 401 && sensorValue <=600 ){

    lcd.setCursor(0,0);
  lcd.print("  DIY Inventor  ");
    lcd.setCursor(0,1);
    lcd.print("400  to 600  ");  
  lcd.setCursor(13,1);
lcd.print(sensorValue);  
/// lcd.clear();

}
  else if (sensorValue>= 601 && sensorValue <=800 ){

    lcd.setCursor(0,0);
  lcd.print("  DIY Inventor  ");
    lcd.setCursor(0,1);
    lcd.print("600  to 800  ");  
  lcd.setCursor(13,1);
lcd.print(sensorValue);  
/// lcd.clear();

}


  else if (sensorValue>= 801 && sensorValue <=1000 ){

    lcd.setCursor(0,0);
  lcd.print("  DIY Inventor  ");
    lcd.setCursor(0,1);
    lcd.print("800  to 1000  ");  
  lcd.setCursor(13,1);
lcd.print(sensorValue);  
/// lcd.clear();

}

}

Downloadable files

Circuit Diagram

Connection of LCD Connect the First pin from the left of LCD (GND pin) with GND pin of Arduino. Connect the Second pin from the left of LCD (VCC pin) with VCC pin of Arduino. Connect the Third pin from the left of LCD (V0 pin) with GND pin of Arduino. Connect the Fourth pin from the left of LCD (RS pin) with 11 pin of Arduino. Connect the Fifth pin from the left of LCD (R/W pin) with GND pin of Arduino. Connect the Sixth pin from the left of LCD (E pin) with 10 pin of Arduino. Connect the Eleventh pin from the left of LCD (D4 pin) with 5 pin of Arduino. Connect the Twelveth pin from the left of LCD (D5 pin) with 4 pin of Arduino. Connect the Thirteen pin from the left of LCD (D6 pin) with 3 pin of Arduino. Connect the Fourteenth pin from the left of LCD (D7 pin) with 2 pin of Arduino. Connect the Fifteenth pin from the left of LCD (5V pin) with 1 K Resistor with 2 pin of Arduino. Connect the Last pin from the left of LCD (GND pin) with GND pin of Arduino. Connection of Potentiometer Connect the first pin from the left of Potentiometer (GND Pin) with GND Pin of Arduino Connect the middle pin from of Potentiometer (Output) with GND Pin of Arduino Connect the last pin from the left of Potentiometer (5V Pin) with 5V Pin of Arduino

Circuit Diagram

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