- User contributions [en]

U8g2 for Seeeduino boards

2025-08-31T13:25:18Z

178.197.194.173:

== U8g2 for Seeeduino boards ==

=== Setup ===

Pour installer la Bibliothèque 
Open the Library Manager (Sketch > Include Library > manage Libraries…) 
Taper u8g2
Choisir By oliver

=== Code 1 ===

On va afficher la phase "Hello World!"
sur 4 lignes, avec un police de caractères différente à chaque ligne
et sur la 5eme ligne on affiche un symbole.

https://www.seeedstudio.com/blog/2019/07/05/u8g2-for-seeeduino-boards/ 

[[File:Grove Base for XIAO 1.PNG|200px]]
[[File:XIAO RA4M1 4.PNG|125px]]
[[File:OLED Display 96x96 recto.jpg|150px]]

Grove Base for XIAO 
XIAO-RA4M1 
Grove - OLED Display 1.12 inches (Port I2c) 
(Pilote SH1107G) (128 × 128 pixels) 

<pre>
#include <Arduino.h>
#include <U8g2lib.h>

U8G2_SH1107_SEEED_128X128_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

void setup(void) {
u8g2.begin();
}

void loop(void) {
u8g2.clearBuffer(); // clear the internal memory
u8g2.setFont(u8g2_font_ncenB08_tr); // choose a suitable font
u8g2.drawStr(0,10,"Hello World!"); // write something to the internal memory
u8g2.setFont(u8g2_font_ncenB18_tr); // choose a suitable font
u8g2.drawStr(0,40,"Hello World!"); // write something to the internal memory
u8g2.setFont(u8g2_font_pieceofcake_mel_tr); // choose a suitable font
u8g2.drawStr(0,60,"Hello World!"); // write something to the internal memory
u8g2.setCursor(40, 80);
u8g2.setFont(u8g2_font_ncenB08_tr); // choose a suitable font
u8g2.print("Hello World!");
u8g2.setFont(u8g2_font_unifont_t_symbols);
u8g2.drawGlyph(40, 100, 0x2603);
u8g2.sendBuffer(); // transfer internal memory to the display
delay(1000);
}
</pre>

=== Code 2 ===

Ce code permet d’afficher le logo de Seeed Studio

Pour plus d’information voir l’article de Elaine Wu

https://www.seeedstudio.com/blog/2019/07/05/u8g2-for-seeeduino-boards/ 

[[File:Grove Base for XIAO 1.PNG|200px]]
[[File:XIAO RA4M1 4.PNG|125px]]
[[File:OLED Display 96x96 recto.jpg|150px]] 

Grove Base for XIAO 
XIAO-RA4M1 
Grove - OLED Display 1.12 inches (Port I2c) 
(Pilote SH1107G) (128 × 128 pixels) 

<pre>
#include <Arduino.h>
#include <U8g2lib.h>

U8G2_SH1107_SEEED_128X128_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

static const unsigned char logo_2018_horizontal_bits[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x02, 0x00, 0xC0, 0x40, 0x00,
0x00, 0x80, 0x02, 0x80, 0x00, 0x40, 0x00, 0x80, 0x00, 0x00, 0x38, 0x00,
0x00, 0x00, 0x80, 0x00, 0x00, 0xE0, 0x0F, 0xF8, 0x07, 0xF8, 0x07, 0xF8,
0x07, 0xF0, 0x39, 0x00, 0x00, 0x60, 0x00, 0x01, 0x00, 0xF0, 0x3F, 0xFC,
0x0F, 0xFC, 0x0F, 0xFC, 0x0F, 0xFC, 0x3B, 0x00, 0x00, 0x20, 0x80, 0x02,
0x00, 0x38, 0x18, 0x3E, 0x1E, 0x3E, 0x1E, 0x3E, 0x1F, 0xFE, 0x3F, 0x00,
0x00, 0x10, 0x00, 0x00, 0x00, 0x38, 0x00, 0x0E, 0x3C, 0x0F, 0x3C, 0x0F,
0x3C, 0x1F, 0x3F, 0x00, 0x00, 0x10, 0x00, 0x01, 0x04, 0x78, 0x00, 0x0F,
0x38, 0x0F, 0x38, 0x0F, 0x38, 0x0F, 0x3C, 0x00, 0x00, 0x28, 0x00, 0x06,
0x00, 0xF8, 0x07, 0xEF, 0x3F, 0xDF, 0x3F, 0xF7, 0x3F, 0x07, 0x3C, 0x02,
0x10, 0x28, 0x00, 0x04, 0x04, 0xF0, 0x1F, 0xFF, 0x3F, 0xFF, 0x3F, 0xFF,
0xBF, 0x07, 0x38, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0xC0, 0x3F, 0xFF,
0x7F, 0xFF, 0x7F, 0xFF, 0xBF, 0x07, 0x3C, 0x08, 0x18, 0x10, 0x00, 0x06,
0x02, 0x00, 0x38, 0x0F, 0x00, 0x07, 0x00, 0x07, 0x00, 0x07, 0x3C, 0x00,
0x00, 0x28, 0x00, 0x00, 0x04, 0x00, 0x78, 0x0F, 0x00, 0x0F, 0x00, 0x0F,
0x00, 0x0F, 0x3C, 0x00, 0x20, 0x10, 0x00, 0x06, 0x04, 0x38, 0x38, 0x1E,
0x0C, 0x1E, 0x0C, 0x1E, 0x0C, 0x1F, 0x3F, 0x04, 0x18, 0x28, 0x00, 0x01,
0x01, 0xF8, 0x3F, 0xFC, 0x1F, 0xFC, 0x1F, 0xFC, 0x1F, 0xFE, 0x3F, 0x00,
0x00, 0x20, 0x00, 0x04, 0x02, 0xF8, 0x1F, 0xF8, 0x0F, 0xF8, 0x0F, 0xF8,
0x1F, 0xFC, 0x3B, 0x01, 0x60, 0x10, 0x00, 0x82, 0x02, 0xC0, 0x07, 0xE0,
0x03, 0xE0, 0x03, 0xE0, 0x03, 0xF0, 0x39, 0x00, 0x40, 0x20, 0x00, 0x42,
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xA0, 0x60, 0x80, 0x40, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x40, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0x80, 0xB0,
0x00, 0x58, 0x80, 0x60, 0x10, 0x40, 0x00, 0x00, 0x03, 0x88, 0x00, 0x00,
0x00, 0x02, 0x00, 0x48, 0x00, 0xD8, 0x88, 0x64, 0x14, 0x40, 0x00, 0x10,
0x21, 0x88, 0x00, 0x00, 0x00, 0x09, 0x20, 0x28, 0x00, 0x98, 0x95, 0x2A,
0xDE, 0x7D, 0xDD, 0x2E, 0x7B, 0xBB, 0x36, 0x00, 0x00, 0x04, 0x00, 0x04,
0x00, 0x50, 0x9F, 0x2A, 0xD6, 0x57, 0xAD, 0x3A, 0x91, 0xAB, 0x17, 0x00,
0x00, 0x50, 0x80, 0x02, 0x00, 0x50, 0x99, 0x6E, 0xD4, 0x75, 0xEF, 0x1A,
0xAF, 0xBB, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, };

void setup(void) {
u8g2.begin();
Serial.begin(115200);
}

void loop(void) {
u8g2.clearBuffer(); // clear the internal memory
u8g2.drawXBM(0,0, 128, 32, logo_2018_horizontal_bits);
u8g2.sendBuffer(); // transfer internal memory to the display
//Serial.println(sizeof(ironman_bits));
Serial.println("work");
delay(1000);
}
</pre>

=== Code 3 ===

C’est une démo complète avec des courbes, des carrés, etc.

https://www.seeedstudio.com/blog/2019/07/05/u8g2-for-seeeduino-boards/

[[File:Grove Base for XIAO 1.PNG|200px]]
[[File:XIAO RA4M1 4.PNG|125px]]
[[File:OLED Display 96x96 recto.jpg|150px]]

Grove Base for XIAO 
XIAO-RA4M1 
Grove - OLED Display 1.12 inches (Port I2c) 
(Pilote SH1107G) (128 × 128 pixels) 

<pre>
#include <Arduino.h>
#include <U8g2lib.h>

U8G2_SH1107_SEEED_128X128_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

void setup(void) {
u8g2.begin(); // start a display.
}

//
void drawPixels()
{
u8g2.clearBuffer(); // clear the internal memory
for(int i = 0; i < 100; i++){
// generate 100 points randomly
u8g2.drawPixel(random(128), random(128));
u8g2.sendBuffer();
delay(5);
}
}

void drawLines()
{
u8g2.clearBuffer(); // clear the internal memory
u8g2.drawLine(0,0, u8g2.getDisplayWidth(), u8g2.getDisplayHeight());
u8g2.sendBuffer();
delay(1000);
u8g2.drawLine(u8g2.getDisplayWidth(),0, 0, u8g2.getDisplayHeight());
u8g2.sendBuffer();
delay(1000);
u8g2.drawLine(0, u8g2.getDisplayHeight()/2, u8g2.getDisplayWidth(), u8g2.getDisplayHeight()/2);
u8g2.sendBuffer();
delay(1000);
u8g2.drawLine(u8g2.getDisplayWidth()/2,0, u8g2.getDisplayWidth()/2, u8g2.getDisplayHeight());
u8g2.sendBuffer();
}

void drawBoxes()
{
u8g2.clearBuffer(); // clear the internal memory
u8g2.drawBox(0, 0, u8g2.getDisplayWidth()/2-5,u8g2.getDisplayHeight()/2-5);
u8g2.sendBuffer();
delay(1000);
u8g2.drawBox(0, u8g2.getDisplayHeight()/2+5, u8g2.getDisplayWidth()/2-5,u8g2.getDisplayHeight());
u8g2.sendBuffer();
delay(1000);
u8g2.drawBox(u8g2.getDisplayWidth()/2+5, u8g2.getDisplayHeight()/2+5, u8g2.getDisplayWidth(),u8g2.getDisplayHeight());
u8g2.sendBuffer();
delay(1000);
u8g2.drawBox(u8g2.getDisplayWidth()/2+5, 0, u8g2.getDisplayWidth(),u8g2.getDisplayHeight()/2-5);
u8g2.sendBuffer();
}

void drawFrames()
{
u8g2.clearBuffer(); // clear the internal memory
u8g2.drawFrame(u8g2.getDisplayWidth()/2-10, u8g2.getDisplayHeight()/2-10, 20, 20);
u8g2.sendBuffer();
delay(1000);
u8g2.drawFrame(u8g2.getDisplayWidth()/2-20, u8g2.getDisplayHeight()/2-20, 40, 40);
u8g2.sendBuffer();
delay(1000);
u8g2.drawFrame(u8g2.getDisplayWidth()/2-30, u8g2.getDisplayHeight()/2-30, 60, 60);
u8g2.sendBuffer();
delay(1000);
u8g2.drawFrame(u8g2.getDisplayWidth()/2-40, u8g2.getDisplayHeight()/2-40, 80, 80);
u8g2.sendBuffer();
delay(1000);
u8g2.drawFrame(u8g2.getDisplayWidth()/2-50, u8g2.getDisplayHeight()/2-50, 100, 100);
u8g2.sendBuffer();
}

void drawCircles()
{
u8g2.clearBuffer(); // clear the internal memory
u8g2.drawCircle(u8g2.getDisplayWidth()/2, u8g2.getDisplayHeight()/2, 30, U8G2_DRAW_UPPER_RIGHT);
u8g2.sendBuffer();
delay(1000);
u8g2.drawCircle(u8g2.getDisplayWidth()/2, u8g2.getDisplayHeight()/2, 30, U8G2_DRAW_UPPER_LEFT);
u8g2.sendBuffer();
delay(1000);
u8g2.drawCircle(u8g2.getDisplayWidth()/2, u8g2.getDisplayHeight()/2, 30, U8G2_DRAW_LOWER_LEFT);
u8g2.sendBuffer();
delay(1000);
u8g2.drawCircle(u8g2.getDisplayWidth()/2, u8g2.getDisplayHeight()/2, 30, U8G2_DRAW_LOWER_RIGHT);
u8g2.sendBuffer();
delay(1000);
u8g2.drawCircle(u8g2.getDisplayWidth()/2, u8g2.getDisplayHeight()/2, 50, U8G2_DRAW_ALL);
u8g2.sendBuffer();
}

void loop(void) {

drawPixels();
delay(2000);
drawLines();
delay(2000);
drawFrames();
delay(2000);
drawCircles();
delay(2000);
drawBoxes();
delay(2000);
}
</pre>

OLED Display 0.96 (SSD1315)

2025-08-31T10:45:33Z

178.197.194.173: /* Communication */

== Grove - OLED Display 0.96 (SSD1315) inches (Seeed-Studio) ==

=== Caractéristiques ===
Dot Matrix 128×64
Monochrome(white) 
3.3V/5V compatible

=== Communication ===

I2C : Adresse '''0x3C'''

Si votre carte est ATmega328, comme Seeeduino V4.2 et Arduino UNO, vous devez passer à soft I2C lorsque vous utilisez la bibliothèque U8G2. 

Ceci n'est pas nécessaire si vous utilisez une carte de développement SAMD.

=== Images ===
[[File:OLED-Display-0-96-SSD1315.png |300px]]

=== Tableau ===
{| class="wikitable centre" width="250"
|+ Seeed-Studio
|-
! scope=col | Seeeduino
! scope=col | Sensor
|-
| width="33%" |
5V
| width="34%" |
Red
|-
| width="33%" |
GND
| width="34%" |
Black
|-
| width="33%" |
SDA
| width="34%" |
White
|-
| width="33%" |
SCL
| width="34%" |
Yellow
|-
| align="center" colspan="3" |
Grove - OLED Display 0.96 inches -
|}

=== Drivers ===
SSD1315 chip 

=== Voltage ===
3.3 ~ 5.5V

==== Liens externes ====
[https://www.seeedstudio.com/Grove-OLED-Display-0-96-SSD1315-p-4294.html www.seeedstudio.com/Grove-OLED-Display-0-96-SSD1315-p-4294.html] shop 

[https://wiki.seeedstudio.com/Grove-OLED-Display-0.96-SSD1315 wiki.seeedstudio.com/Grove-OLED-Display-0.96-SSD1315] wiki 

==== Code Hello World ! ====

<pre>
#include <Arduino.h>
#include <U8x8lib.h>
#include <Wire.h>

U8X8_SSD1306_128X64_NONAME_HW_I2C u8x8(/* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // OLEDs without Reset of the Display

void setup(void) {
u8x8.begin();
u8x8.setFlipMode(1); // set number from 1 to 3, the screen word will rotary 180
}

void loop(void) {
u8x8.setFont(u8x8_font_chroma48medium8_r);
u8x8.setCursor(0, 0);
u8x8.print("Hello World!");
}
</pre>

OLED Display 0.96 (SSD1315)

2025-08-31T10:45:09Z

178.197.194.173: /* Communication */

== Grove - OLED Display 0.96 (SSD1315) inches (Seeed-Studio) ==

=== Caractéristiques ===
Dot Matrix 128×64
Monochrome(white) 
3.3V/5V compatible

=== Communication ===

I2C : Adresse '''0x3C'''

If your board is ATmega328, such as Seeeduino V4.2 and Arduino UNO, you need to change to soft I2C when using the U8G2 library.This is not required if you are using a SAMD development board.

Si votre carte est ATmega328, comme Seeeduino V4.2 et Arduino UNO, vous devez passer à soft I2C lorsque vous utilisez la bibliothèque U8G2. 
 
Ceci n'est pas nécessaire si vous utilisez une carte de développement SAMD.

=== Images ===
[[File:OLED-Display-0-96-SSD1315.png |300px]]

=== Tableau ===
{| class="wikitable centre" width="250"
|+ Seeed-Studio
|-
! scope=col | Seeeduino
! scope=col | Sensor
|-
| width="33%" |
5V
| width="34%" |
Red
|-
| width="33%" |
GND
| width="34%" |
Black
|-
| width="33%" |
SDA
| width="34%" |
White
|-
| width="33%" |
SCL
| width="34%" |
Yellow
|-
| align="center" colspan="3" |
Grove - OLED Display 0.96 inches -
|}

=== Drivers ===
SSD1315 chip 

=== Voltage ===
3.3 ~ 5.5V

==== Liens externes ====
[https://www.seeedstudio.com/Grove-OLED-Display-0-96-SSD1315-p-4294.html www.seeedstudio.com/Grove-OLED-Display-0-96-SSD1315-p-4294.html] shop 

[https://wiki.seeedstudio.com/Grove-OLED-Display-0.96-SSD1315 wiki.seeedstudio.com/Grove-OLED-Display-0.96-SSD1315] wiki 

==== Code Hello World ! ====

<pre>
#include <Arduino.h>
#include <U8x8lib.h>
#include <Wire.h>

U8X8_SSD1306_128X64_NONAME_HW_I2C u8x8(/* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // OLEDs without Reset of the Display

void setup(void) {
u8x8.begin();
u8x8.setFlipMode(1); // set number from 1 to 3, the screen word will rotary 180
}

void loop(void) {
u8x8.setFont(u8x8_font_chroma48medium8_r);
u8x8.setCursor(0, 0);
u8x8.print("Hello World!");
}
</pre>

IPS Display 1.22 inch

2025-08-31T10:40:34Z

178.197.194.173: /* Caractéristiques */

== Grove - IPS Display 1.22 inch (Seeed-Studio) ==

=== Caractéristiques ===

RGB OLED Display 1.22'' <ST7789> v1.0 
écran à cristaux liquides de 1,2 pouce 
240 x 240 pixels 
l'écran peut afficher jusqu'à 65 000 couleurs RGB 
3.3V or 5V 
l'écran utilise le ST7789 comme circuit intégré de pilotage 
l'écran utilise la technologie IPS. Quel que soit l'angle de vue, l'expérience visuelle est quasiment identique sous tous les angles.

[[File:1.22 Inch IPS Display 1.PNG|350px]]
[[File:1.22 Inch IPS Display 2.PNG|250px]]

[[File:1.22 Inch IPS Display 3.PNG|350px]]

Sa bibliothèque de pilotes open source et son code d'exemple facilitent la prise en main

=== Communication ===

D7 (D7/D8) port

==== Liens externes ====

[https://www.seeedstudio.com/Grove-1-2-Inch-IPS-Display-p-5699.html https://www.seeedstudio.com/Grove-1-2-Inch-IPS-Display-p-5699.html]  shop

[https://wiki.seeedstudio.com/grove_1.2inch_ips_display/ wiki.seeedstudio.com/grove_1.2inch]  wiki

==== Bibliothèques ====

https://github.com/adafruit/Adafruit-GFX-Library 
https://github.com/adafruit/Adafruit_BusIO 
https://github.com/limengdu/Arduino_ST7789_Fast/tree/master

La librairie a été mis à jours, aout 2025, veuillez réinstaller la bibliothèque en cas de problème

==== Code ====

[[File:UNO v3 front angle.jpg|75px]]
[[File:Base Shield V2 recto plat.jpg|75px]]
[[File:1.22 Inch IPS Display 1.PNG|75px]]

Arduino IDE 2.3.6 
Arduino UNO 
Base Shield (5 Volts) 
Grove-1.2 Inch IPS Display (Port D7) ici OK

Testé sur D8, ici rien aucun affichage

<pre>
#include <Adafruit_GFX.h>
#include <Arduino_ST7789_Fast.h>

#define SCK 7
#define SDA 8

Arduino_ST7789 lcd = Arduino_ST7789(SCK, SDA);

void setup(void)
{
lcd.init();
lcd.fillScreen(BLACK);

lcd.setCursor(0, 0);
lcd.setTextColor(RED,BLACK);
lcd.setTextSize(3);
lcd.println("HELLO WORLD");
}

void loop()
{

}
</pre>

https://github.com/adafruit/Adafruit-ST7735-Library/tree/master

<pre>
#include <Adafruit_GFX.h> // graphics library
#include <Adafruit_ST7789.h> // library for this display
#include <SPI.h>

#define TFT_CS 7 // if your display has CS pin
#define TFT_DC 8 // data pin

#define TFT_RST -1 // reset pin

Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);

void setup() {
tft.init(240, 240, SPI_MODE2);
tft.setRotation(2); // rotates the screen
tft.fillScreen(ST77XX_BLACK); // fills the screen with black colour
tft.setCursor(10, 10); // starts to write text at y10 x10
tft.setTextColor(ST77XX_WHITE); // text colour to white you can use hex codes like 0xDAB420 too
tft.setTextSize(3); // sets font size
tft.setTextWrap(true);
tft.print("HELLO WORLD!");
}
void loop() {

}
</pre>