Method setContrast

Code/Arduino_libraries/SSD1306/OLEDDisplay.cpp:773–783

}

void OLEDDisplay::setContrast(uint8_t contrast, uint8_t precharge, uint8_t comdetect) {
  sendCommand(SETPRECHARGE); //0xD9
  sendCommand(precharge); //0xF1 default, to lower the contrast, put 1-1F
  sendCommand(SETCONTRAST);
  sendCommand(contrast); // 0-255
  sendCommand(SETVCOMDETECT); //0xDB, (additionally needed to lower the contrast)
  sendCommand(comdetect);	//0x40 default, to lower the contrast, put 0
  sendCommand(DISPLAYALLON_RESUME);
  sendCommand(NORMALDISPLAY);
  sendCommand(DISPLAYON);
}

void OLEDDisplay::setBrightness(uint8_t brightness) {
  uint8_t contrast = brightness;