Skip to main content

Interfacing Arduino and DFrobot LCD part2: Scrolling Left and Right

HELLO THERE!!!

      As usual, how are you guys? I hope you guys are fine always. This week I wanted to share with you guys about scrolling left and right in the DFrobot LCD. Last week, I was able to show you guys on how to set up the buttons to show text output. This week, I will show you guys on scrolling left and right when pressing the respective buttons.

    Ok, Lets see what do we need for this experiment this week.

HARDWARE:1.Arduino UNO
2.DFrobot LCD Keypad Shield

SOFTWARE:
1. Arduino IDE



   Now that the items are sorted out, let's see how to assembly the circuit. The circuit assembly is no different than the last week's assembly:




After assembling the the circuit, connect the Arduino to the computer and upload the following code to the Arduino:


#include<LiquidCrystal.h> // the liquid crystal lib

LiquidCrystal lcd (8, 9, 4, 5, 6, 7);

int lk = 0; // lcd key
int aki = 0; // analog key input

#define R 0 // button right = 0
#define U 1 // button Up =1
#define D 2 // button down = 2
#define L 3 // button left = 3
#define S 4 // button Select = 4
#define Hi 5 // other than that all the button is hi(none pressed)

int reads()
{
  aki = analogRead(0); // read value of button pressed
  
  if (aki > 1000) return Hi; //if value is 1000(none pressed go to hi)
  
  if (aki < 50) return R;//values of the button
  if (aki < 195) return U;
  if (aki <380) return D;
  if (aki < 555) return L;
  if (aki < 790) return S;
  
  return Hi;//after press go to Hi
  
}


void setup() {
lcd.begin(16,2);// lcd begin for all pixels(col,rows)
lcd.setCursor(0,0);//start in position 0,0(beginning of the lcd)
lcd.print(" HI I AM NICO");//print from (0,0)

}

void loop() {
  
  lcd.setCursor(0,1);//cursor is now set at col 0 row 1
  lk = reads();// run the reads() function and store val at lk
  
switch(lk) // effect after each button is pressed
{
  case R:
  {
    lcd.scrollDisplayRight();
    delay(150);
    break;
  }
  case L:
  {
    lcd.scrollDisplayLeft();
    delay(150);
    break;
  }
  case U:
  {
    lcd.print("THIS IS UP ");
    break;
  }
  case D:
  {
    lcd.print("THIS IS DOWN ");
    break;
  }
  case S:
  {
    lcd.print("THIS IS SELECT ");
    break;
  }
  case Hi:
  {
    lcd.print("Press left or right to scroll");
     lcd.setCursor(8,1); //if not pressed hi will always run and after welcome word nothing will be there
  lcd.print("               ");
    break;
  }
}
}



The Testing video can be viewed here: https://youtu.be/JZU3I6RsmaI























Comments

Post a Comment

Popular posts from this blog

Arduino and Multi Function Shield: Pots,LEDs and buzzers

HELLO THERE!!!!!    How are you guys? I hope everyone is fine and in good mood always. This week, I continue my tinkerings with the Multi Function Shield. In this experiment, I used the potentiometer in the shield to control the LEDs in the shield. Without further wasting time, let's jump in straight to the experiment!! HARDWARE 1.ARDUINO UNO  2.MULTI-FUNCTION SHIELD SOFTWARE: 1. ARDUINO IDE CIRCUIT ASSEMBLY    The circuit assembly is fairly simple. Just attach the multi function shield on top of Arduino properly. Please attach the shield properly as failure to do so would cause the shield  not to function as intended. CODING THE ARDUINO: Let's refer to the multi-function shield image below: Referring to the image of the shield, it can be seen that the potentiometer (blue object near buttons) is connected to pin A0 (analog 0)     int pot = A0; //declaring the pot ...
Post a Comment
Read more

Arduino Beginner Experiments: Arduino and Light Blocking Sensor

HELLO THERE!!!     How are you guys? I hope everyone is fine and in a good mood always. This week, I would like to share with you guys my experiment on Arduino and Light Blocking Sensor. The objective of this experiment is to receive feedback from the sensor ( Digital and Analog) What is Light Blocking Sensor?      A linear hall sensor is a type of sensor which responds when the sensor is blocked out from light. The sensor is different for LDR's as LDR's responds to the amount of light it received while the light blocking sensor responds if the light is blocked out or not from the sensor.It can be used for both digital and analog measurements. HARDWARE: 1.Arduino UNO 2. Light Blocking Sensor SOFTWARE: 1.Arduino IDE CIRCUIT ASSEMBLY   Let's refer to the image of the blocking sensor below: The Connection of the Sensor to the Arduino is shown below: SENSOR  ----->       ARDUINO Signal   ...
Post a Comment
Read more

Arduino and Keyes KY-017 Mercury Tilt Sensor

HELLO THERE!!!     How are you guys? I hope everyone is fine and good as always. I am back in tinkering after a few months of hiatus( busy stuff :) ). So, today i would like to share with you guys on KY-017, which is a Keyes Mercury Tilt Sensor. KY-017 Sensor KY-017      The picture above shows the KY-017 Sensor from Keyes. It has 3 pins, A ground, A vcc, and A signal pin. If you look closely, there is a mercury ball inside the bulb like object. The mercury ball acts like a switch for this sensor. KY-017 Working Procedure: 1. When the sensor is not tilted, the mercury ball will be at the bottom of the bulb. This will complete the circuit and turns on the LED of the sensor. The output that is sent through the signal pin will be LOW. 2.When the sensor is tilted, the mercury ball will be at the top of the bulb(near at the sharper end). This will complete break circuit and turns off the LED of the sensor. The output that is sent through t...
Post a Comment
Read more