Created
November 10, 2023 22:15
-
-
Save wesleyit/90356160fc4dd6c18974076b55d42c80 to your computer and use it in GitHub Desktop.
A very simple code to display text using an OLED display built in to NodeMCU
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#include <Arduino.h> | |
#include <U8g2lib.h> | |
#include <Wire.h> | |
// This line will initialize the OLED display properly | |
U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ 12, /* data=*/ 14, /* reset=*/ U8X8_PIN_NONE); | |
#define U8LOG_WIDTH 14 // Width of ulog object | |
#define U8LOG_HEIGHT 4 // Height of ulog object | |
// The size necessary for the ulog buffer | |
uint8_t u8log_buffer[U8LOG_WIDTH * U8LOG_HEIGHT]; | |
U8G2LOG u8g2log; | |
void setup(void) { | |
// Init the display | |
u8g2.begin(); | |
// Init the ulog object | |
u8g2log.begin(U8LOG_WIDTH, U8LOG_HEIGHT, u8log_buffer); | |
} | |
String nome = String("Em volta do buraco, tudo eh beira.\n--Ariano Suassuna\f"); | |
int counter = 0; | |
void loop(void) { | |
// The text from the ulog object need to be printed | |
// before the screen is assembled | |
u8g2log.print(nome[counter]); | |
// Then, create the screen layout calling the ulog object | |
u8g2.firstPage(); | |
do { | |
u8g2.setFont(u8g2_font_commodore64_tr); // font for the title | |
u8g2.setCursor(0, 14); // title position on the display | |
u8g2.print("Sabedoria:"); // output title | |
u8g2.setFont(u8g2_font_unifont_tf); // set the font for the terminal window | |
u8g2.drawLog(0, 28, u8g2log); // draw the terminal window on the display | |
} while (u8g2.nextPage()); | |
if (counter > nome.length()) { | |
counter = 0; | |
} | |
else { | |
counter++; | |
} | |
delay(50); | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment