// Test for minimum program size. #include #include "SSD1306Ascii.h" #include "SSD1306AsciiWire.h" // 0X3C+SA0 - 0x3C or 0x3D #define I2C_ADDRESS 0x3C // Define proper RST_PIN if required. #define RST_PIN -1 SSD1306AsciiWire oled; //------------------------------------------------------------------------------ void setup() { Wire.begin(); Wire.setClock(400000L); #if RST_PIN >= 0 oled.begin(&Adafruit128x64, I2C_ADDRESS, RST_PIN); #else // RST_PIN >= 0 oled.begin(&Adafruit128x64, I2C_ADDRESS); #endif // RST_PIN >= 0 oled.setFont(System5x7); oled.clear(); oled.print("Hello world!"); } //------------------------------------------------------------------------------ void loop() { oled.setCursor(60, 4); oled.println(millis()); }