2020年1月8日 · Hi, i've attached a 1602 I2C LCD display to an Uno, ran the I2CScanner program and found that the address is 0x3F. I then run this code : // I2C LCD Hello World #include <Wire.h> #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x3F,2,1,0,4,5,6,7,3,POSITIVE); void setup() { lcd.begin(16,2); lcd.clear(); lcd.print("hello world"); } void loop () {} The LCD only displays a line of blocks. I ...

2017年9月5日 · Ya use lo que me dijiste, la dirección es la 0x3F, utilice este código para probarla pero igual no consigo hacerla funcionar .. /* YourDuino.com Example Software Sketch 16 character 2 line I2C Display Backpack Interface labelled "A0 A1 A2" at lower right.

2020年3月23日 · I've tried to do my first project for the LCD but when I was using this code it only gives me the power light on without any other feedback. I'm using mega 2560, and the addedss of my stuff is 0x3F. #include <Wire.h> #include <LiquidCrystal_I2C.h> // Set the LCD address to 0x27 for a 16 chars and 2 line display LiquidCrystal_I2C lcd(0x27, 16, 2); void setup() { // Robojax code for LCD with I2C ...

2018年5月8日 · Hello everyone, please can you tell me if it's possible to set the address of the lcd display at runtime? I have two display with different adress (0x3F, 0x27) and I would like to set the address in the setup, not in the initialization LiquidCrystal_I2C lcd(0x3F, 20, 4); LiquidCrystal_I2C lcd(0x27, 20, 4); In this way I can read the address from a configuration file and I …

2021年3月11日 · Help! im new at this and im just trying to do something very simple. Display a text in a 16x2 LCD with a 12c module attached to it. Code doesnt show errors I installed the liquidcrystal and liquidcrystal 12c library i connected and doble check still doesnt work..is blank Im attaching some pics and the schematic. help please! thanks in advance! the code> */ #include <LiquidCrystal_I2C.h ...

2015年9月17日 · LiquidCrystal_I2C lcd(0x27,16,2,16); // set the LCD address to 0x27 for a 16 chars and 2 line display instead of LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display

2018年8月22日 · I have two otherwise identical projects, but they differ in the I2C address of the LCD display (0x27 and 0x3F). I cannot change them onboard by cutting or soldering bridges. In the global section of the sketch I have compiler directive

2016年1月5日 · Hello! I'm new to arduino, but before posting this I've searched about this and nothing helps to me. I've followed this instructions . I have a QAPASS 1602a 16x2 with I2C labelled "A0 A1 A2" (version 1 on link). I've found that it has address 0x3F using scanner. Starting sketch from limk I actually got my display blinking as excected, but still no characters. I've tried to tune contrast using ...

2019年6月20日 · Ciao a tutti, sto cercando di far funzionare uno schermo LCD I2C che mi sta dando un bel po' di problemi. L'ho provato con mille librerie diverse sia su un clone cinese di arduino uno, sia su un WeMos D1. Alla fine sembra che il risultato meno tragico lo dia la libreria New LiquidCrystal. Caricando l'esempio HelloWorld_i2c (e mettendo l'indirizzo giusto: 0x3F) il risultato è questo: video Con ...

2015年8月13日 · Bonjour, J'ai acheté chez ali... un afficheur LCD 20x4 avec interface I2C. Impossible de lui faire afficher quoi que ce soit. Il est connecté sur une Duemilanove AT328 Mon afficheur est bien branché sur A4 SDA/A5 SDL, pendu avec des 10ko sur le +5V Voilà le code de test : #include <Wire.h> #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x3F,20,4); void setup() { lcd.init(); lcd.clear ...