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CONTENTS

Unit OLED

SKU:U119

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.

Product 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

Include

  • 1x Unit OLED
  • 1x HY2.0-4P Cable

Applications

  • Information display

Specification

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 )

PinMap

M5Core(PORT A) GPIO22 GPIO21 5V GND
Unit OLED SCL SDA 5V GND

Schematic

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);
}

Video