ok i have it compiling now but its displaying some very strange characters on screen just like random blocks? any idea about this

[DirtyDerv]

ok i have it compiling now but its displaying some very strange characters on screen just like random blocks? any idea about this

`#include <Arduino.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <EEPROM.h>

//#define USE_PARALLEL_2004_LCD // Is default
//#define USE_PARALLEL_1602_LCD
#define USE_SERIAL_2004_LCD
//#define USE_SERIAL_1602_LCD
#include "LCDBigNumbers.hpp" // Include sources for LCD big number generation

#if defined(USE_PARALLEL_LCD)
LiquidCrystal myLCD(2, 3, 4, 5, 6, 7); // Depends on your actual connections
//LiquidCrystal myLCD(4, 5, 6, 7, 8, 9); // Sample connections starting at pin 4
#else
#define LCD_I2C_ADDRESS 0x27 // Default LCD address is 0x27 for a 20 chars and 4 line / 2004 display
LiquidCrystal_I2C LCD(LCD_I2C_ADDRESS, LCD_COLUMNS, LCD_ROWS); // LCD_COLUMNS and LCD_ROWS are set by LCDBigNumbers.hpp depending on the defined display
#endif

/*

• Available big number fonts are: BIG_NUMBERS_FONT_1_COLUMN_2_ROWS_VARIANT_1, BIG_NUMBERS_FONT_2_COLUMN_2_ROWS_VARIANT_1,
• BIG_NUMBERS_FONT_3_COLUMN_2_ROWS_VARIANT_1, BIG_NUMBERS_FONT_3_COLUMN_2_ROWS_VARIANT_2, BIG_NUMBERS_FONT_3_COLUMN_2_ROWS_VARIANT_3,
• BIG_NUMBERS_FONT_2_COLUMN_3_ROWS_VARIANT_1, BIG_NUMBERS_FONT_2_COLUMN_3_ROWS_VARIANT_2, ,
• BIG_NUMBERS_FONT_3_COLUMN_4_ROWS_VARIANT_1, BIG_NUMBERS_FONT_3_COLUMN_4_ROWS_VARIANT_2
  */
  LCDBigNumbers myLCD(&LCD, BIG_NUMBERS_FONT_3_COLUMN_3_ROWS_VARIANT_1); // Use 3x3 numbers

const int encoderPinA = 2;
const int encoderPinB = 3;

volatile int encoderValue = 0;

float encoderPPM = 1000.0;
float screwPitch = 0.5;

const int eepromAddress = 0;
int lastSavedValue = 0;

void setup() {
LCD.init();
LCD.clear();
LCD.backlight();
Serial.begin(115200);
pinMode(encoderPinA, INPUT);
pinMode(encoderPinB, INPUT);

attachInterrupt(digitalPinToInterrupt(encoderPinA), updateEncoder, CHANGE);
//myLCD.begin();
// Load the last saved encoder value from EEPROM
encoderValue = EEPROM.read(eepromAddress);
}

void loop() {
//float position = (encoderValue / encoderPPM) * screwPitch;
float position = 9876.54;
//displayFormattedNumber(position);
myLCD.print((int)position);
//Serial.println(position);
// Display the formatted number using LCDmyLCD
//myLCD.setBigNumberCursor(0);
//myLCD.print(position); // Correct usage of displayNumber

if (encoderValue != lastSavedValue) {
lastSavedValue = encoderValue;
EEPROM.write(eepromAddress, encoderValue);
}

delay(100);
}

void updateEncoder() {
int stateA = digitalRead(encoderPinA);
int stateB = digitalRead(encoderPinB);

if (stateA == stateB) {
encoderValue++;
} else {
encoderValue--;
}
}

void displayFormattedNumber(float number) {
int integerPart = (int)number;
int decimalPart = (int)((number - integerPart) * 10);
myLCD.print(integerPart);

//Serial.println((int)number);
//myLCD.setBigNumberCursor(0);
//myLCD.print((integerPart / 1000));
//Serial.println((integerPart / 1000));
//myLCD.setBigNumberCursor(5);
//Serial.println("thous");
//myLCD.print((integerPart / 100) % 10);
//Serial.println((integerPart / 100) % 10);
//myLCD.setBigNumberCursor(9);
//myLCD.print((integerPart / 10) % 10);
//Serial.println((integerPart / 10) % 10);
//myLCD.setBigNumberCursor(13);
//myLCD.print(integerPart % 10);
//Serial.println(integerPart % 10);

//printColon(13, 1);
//myLCD.setBigNumberCursor(17);
//myLCD.print(decimalPart);
}

void printColon(byte leftAdjust, byte topAdjust) {
for (byte row = 0; row < (4 - topAdjust); row++) {
myLCD.setBigNumberCursor(15, 4);
if (topAdjust == 1) {
if (row == 0 || row == 1) myLCD.print(F(" "));
else myLCD.print(F(" "));
} else {
if (row == 1 || row == 2) myLCD.print(F("."));
else myLCD.print(F(" "));
}
}
}`

Originally posted by @DirtyDerv in #2 (reply in thread)