Clear LCD creates random squiggle

Other Hardware Displays
1

Hi! I am trying to create a program where I press a character on a keypad and then it will appear on the LCD. Everything works fine but one thing. I am trying to make the '#' button on my keypad clear what is on the LCD but it creates a weird squiggle character. I do not think this is a circuit issue as I have tried clearing the LCD in another program and that works fine. Any help will be appreciated.

(Yes, my code is sloppy)

#include <Key.h>
#include <Keypad.h>
#include <LiquidCrystal.h>

const byte numRows= 4;
const byte numCols= 4; 

char keymap[numRows][numCols]= 
{
{'1', '2', '3', 'A'}, 
{'4', '5', '6', 'B'}, 
{'7', '8', '9', 'C'},
{'*', '0', '#', 'D'}
};


byte rowPins[numRows] = {29,28,27,26};
byte colPins[numCols]= {25,24,23,22};

LiquidCrystal lcd(1, 2, 4, 5, 6, 7);
Keypad myKeypad= Keypad(makeKeymap(keymap), rowPins, colPins, numRows, numCols);

void setup() {
  lcd.begin(16,2);
  Serial.begin(9600);
}

void loop() {
  char keypressed = myKeypad.getKey();
  if (keypressed == '#') {
    lcd.clear();
    Serial.println("clear");
  } 
  else if (keypressed != NO_KEY) {
    lcd.print(keypressed);
    Serial.println("character");
  }
}
2

Hi jedijasper04, welcome.

All you seem to do, is read the key and clear the screen or display the pressed key and the word character.
Perhaps you are doing things too fast after each other.
So slow down to test this.
You'll be allowed to use delay() for debugging purposes, my padawan.

3

What arduino board are you using?
Digital pin 1 is usually the hardware serial port TX signal.

I would not use that pin for the LCD, especially if you also going to transmit serial data.
--- bill