아두이노 정품에는 작동이 잘 되는데 호환보드를 사서 똑같이 돌려도 동작이 안되네요
핀에도 문제가 없고 예제소스도 똑같이 했어요..
 
#include <LCD5110_Graph.h>
 
LCD5110 lcd(8, 9, 10, 11, 12);
 
extern unsigned char BigNumbers[];
extern uint8_t ui[];
 
int sensorPin = A0;
int sensorValue = 0;
int percent = 0;
String percentString = "0";
int stringLength = 0;
int IN1 = 2;
int IN2 = 3;
 
void setup()
{
  lcd.InitLCD();
  lcd.setFont(BigNumbers);
  delay(1000);
  pinMode(IN1, OUTPUT);
  pinMode(IN2, OUTPUT);
  Serial.begin(9600);
}
 
void loop()
{
  lcd.clrScr();
  lcd.drawBitmap(0, 0, ui, 84, 48);
  sensorValue = analogRead(sensorPin);
  percent = convertToPercent(sensorValue);
  percentString = String(percent);
  stringLength = percentString.length();
  displayPercent(stringLength);
 
  lcd.update();
  delay(1000);
  if (sensorValue > 718) {
    digitalWrite(IN1, HIGH);
    digitalWrite(IN2, LOW);
  }
  else if (sensorValue <= 317) {
    digitalWrite(IN1, HIGH);
    digitalWrite(IN2, HIGH);
  }
}
 
int convertToPercent(int value)
{
  int percentValue = 0;
  percentValue = map(value, 1023, 350, 0, 100);
  if (percentValue > 100)
    percentValue = 100;
  return percentValue;
}
 
void displayPercent(int length)
{
  switch (length)
  {
    case 1: lcd.print(percentString, 38, 19); break;
    case 2: lcd.print(percentString, 24, 19); break;
    case 3: lcd.print(percentString, 10, 19); break;
    default: lcd.print(percentString, 0, 19); break;
  }
}