i used a nano and a lcd_i2c.
already check the wires and same as instruction.
what possibly go wrong??
its is fine when i used this code in a UNO.
#include <LiquidCrystal_I2C.h>
#include <Wire.h>LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup() {
// put your setup code here, to run once:
Wire.begin();
lcd.begin(16,2);lcd.clear();
lcd.backlight();
lcd.setCursor(0,0);
lcd.print("User: 1234");
lcd.setCursor(1,1);
lcd.print("Pass: 1234");
delay(10000);lcd.clear();
lcd.noBacklight();
}
void loop() {
// put your main code here, to run repeatedly:}