M5Stack OLED Unit 1.3"Display

Product Link

M5Stack OLED Unit 1.3" 128 × 64 DisplayOpenELAB

Description

Unit OLED is a 1.3-inch OLED expansion screen unit. It adopts SH1107 drive scheme, supports black/white display, and the resolution is 128*64. The driver chip selects the I2C communication interface, and the user can mount it to the I2C bus of the existing device when in use, which saves IO. The back of the screen is integrated with a magnetic design, which can easily be fixed on the metal surface by adsorption. The OLED screen extension is suitable for being embedded in various instruments or control devices that need to display simple content as a display panel.

Features

OLED display panel
SH1107 drive scheme
Display color: black/white
I2C communication interface
128*64 resolution
Viewing angle: full viewing angle
Magnetic back design

Applications

Information display

Specification

Parameter

Working current

58mA

Communication protocol

I2C address: 0x3C

Display size

14.7 × 29.42（mm）

Pixel pitch

0.17×0.17（mm）

Pixel size

0.15×0.15（mm）

Viewable

Full view

Operating temperature

0°C to 60°C

Net weight

9.3g

Gross weight

20g

Product Size

24*56*8mm

Package Size

67*53*12mm

Case material

Plastic ( PC )

Pinout

M5Core(PORT A)

GPIO22

GPIO21

GND

Unit OLED

SCL

SDA

GND

Schematic

Datasheet
- SH1107
Library
- M5GFX Library

Example

Arduino


#include <M5UnitOLED.h>

M5UnitOLED display;

M5Canvas canvas(&display);

static constexpr char text[] = "Hello world ! こんにちは世界！ this is long long string sample. 寿限無、寿限無、五劫の擦り切れ、海砂利水魚の、水行末・雲来末・風来末、喰う寝る処に住む処、藪ら柑子の藪柑子、パイポ・パイポ・パイポのシューリンガン、シューリンガンのグーリンダイ、グーリンダイのポンポコピーのポンポコナの、長久命の長助";
static constexpr size_t textlen = sizeof(text) / sizeof(text[0]);
int textpos = 0;
int scrollstep = 2;

void setup(void) 
{
  display.init();
  display.setRotation(2);
  canvas.setColorDepth(1); // mono color
  canvas.setFont(&fonts::lgfxJapanMinchoP_32);
  canvas.setTextWrap(false);
  canvas.setTextSize(2);
  canvas.createSprite(display.width() + 64, 72);
}

void loop(void)
{
  int32_t cursor_x = canvas.getCursorX() - scrollstep;
  if (cursor_x <= 0)
  {
    textpos = 0;
    cursor_x = display.width();
  }

  canvas.setCursor(cursor_x, 0);
  canvas.scroll(-scrollstep, 0);
  while (textpos < textlen && cursor_x <= display.width())
  {
    canvas.print(text[textpos++]);
    cursor_x = canvas.getCursorX();
  }
  display.waitDisplay();
  canvas.pushSprite(&display, 0, (display.height() - canvas.height()) >> 1);
}