Hello i am very new to coding with arduino and i am trying to set my keypad and my LCD together to ask the user to enter information based off questions asked, so i have a couple of questions here:
1: the first question asked to the user is to enter the date. i have it setup where they can enter a number and press the # to move the curser to the next position but when i finish entering the date and press the # it goes back to the initial curser position when i want it to save the date entered and move on to the next question.
2: the second question is to enter the type of object being tested. i want to set it up as to have only the 1 and 2 buttons being used. pressing the ‘1’ buttons means testing a 36" pole and the ‘2’ button being the 42" pole.
3: the third question is to enter the trial number and press # to advance.
please i would really appreciate the help im stuck, here is the code i have so far
/ Declaring libraries
#include <Keypad.h> //Library for kepad
#include <LiquidCrystal_I2C.h> //Library for the LCD display
#include <Wire.h> // Also for the LCD display
//////////////// Definitions of Adruino pins
int key; // Variable that contains the input from the keypad
//////////////// The following is using the LCD library to initialize the display
LiquidCrystal_I2C lcd(0x3F,2,1,0,4,5,6,7,3,POSITIVE); // backlight is on (positive)
/////////////// Keypad Information
// Keypad Information:
const byte ROWS = 4; // Define the number of rows in the keypad - 4
const byte COLS = 3; // Define the number of columns in the keypad - 3
// The following defines the array of keys on the key the matrix must be of type char
char keys[ROWS][COLS] = {
{‘1’, ‘2’, ‘3’},
{‘4’, ‘5’, ‘6’},
{‘7’, ‘8’, ‘9’},
{’’,‘0’,’#’}
};
/ keypad wire configuration (from left to right; where C and R represents
columns and rows, respectively):
Wire 1: C2
Wire 2: R1
Wire 3: C1
Wire 4: R4
Wire 5: C3
Wire 6: R3
Wire 7: R2
*/
// For 4 rows 3 columns keypad there are 7 wires one for each row (R1 to R4) and
// one for each column (C1 to C3). These wires are connected to
// Pins: 34 36 38 40 42 44 46
// The following shows the definitions
byte rowPins[ROWS] = {36, 46, 44, 40}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {38, 34, 42}; //connect to the column pinouts of the keypad
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
char mm = 00; //stores the value for the month
char dd = 00; //stores the value for the day
char yy = 00; //stores the value for the year
int p = 7; //stores the value for the iteration
int val = 1; //stores the value for the current value
int pos = 4; //stores the value for the cursor position
// Using the keypad library to initialize the keypad
Keypad Numb_pad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);
//analogReference(DEFAULT); // Set the analog input range as default
void setup() {
//Set Up Initial Parameters
lcd.begin(16,2); // Specifies the # of rows and columns
delay(500); // wait for 0.5 seconds
lcd.setCursor(2,0);
lcd.print(“name”); // Print a message on the LCD (default start
//printing at line 0 column 0
lcd.setCursor(5,1); // Move the cursor to column 1 line 1
lcd.print(“name”); // Print, in this position, a message
delay(500); // Wait for 3 seconds
lcd.clear(); // Clear the LCD
lcd.setCursor(1,0);
lcd.print(“name”); // Print a message on the LCD (default start
//printing at line 0 column 0
lcd.setCursor(5,1); // Move the cursor to column 1 line 1
lcd.print(“name”); // Print, in this position, a message
delay(500); // Wait for 3 seconds
lcd.clear(); // Clear the LCD
lcd.setCursor(3,0);
lcd.print(“Enter Date”);
lcd.setCursor(3,1);
lcd.print(" / / ");
lcd.setCursor(4,1);
lcd.blink();
//Start communication
Serial.begin(9600); //Set the baud rate to 9600 baud
}
void loop() {
char key = keypad.getKey(); //Store the pressed key value in “key”
if (key) //button Pressed
{
if(key == ‘#’) //Enter Button Pressed
{
pos++; //Increase position counter
if (pos == 6 || pos == 9) //location of slashes
{
pos++; //Increment additional to pass slashes
}
if (pos > 11) //Last digit entered
{
pos = 4; //Set position to beginning position
}
lcd.setCursor(pos,1); //Set cursor Position
}
else //Enter not pressed yet
{
lcd.setCursor(pos,1); //Set cursor Position
lcd.write(key); //Write Value to LCD
lcd.setCursor(pos,1); //Set cursor Position
}
}
//-------------------------------------------------------------------------------------------
}