M5Atom + SSD1306 日本語表示

helloJP.ino

#include <M5Atom.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "efontEnableJa.h"
#include "efontSSD1306.h"

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET     4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
  Serial.begin(115200);
  M5.begin();
  Wire.begin(21,25);
  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3C for 128x32
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

  display.clearDisplay();
  printEfont(&display, "こんにちワールド日本語チャレンジ！",0,0,2);
  display.display();
}

void loop() {
}