ESP-1ch-Gateway/libraries/Heltec_ESP8266_Dev-Boards/examples/OLED/SSD1306UiDemo/SSD1306UiDemo.ino

#include <Wire.h>  // Only needed for Arduino 1.6.5 and earlier
#include "heltec.h" // alias for `#include "SSD1306Wire.h"
#include "images.h"

#define DEMO_DURATION 3000
typedef void (*Demo)(void);

OLEDDisplayUi ui     ( Heltec.display );

void msOverlay(OLEDDisplay *display, OLEDDisplayUiState* state) {
  display->setTextAlignment(TEXT_ALIGN_RIGHT);
  display->setFont(ArialMT_Plain_10);
  display->drawString(128, 0, String(millis()));
}

void drawFrame1(OLEDDisplay *display, OLEDDisplayUiState* state, int16_t x, int16_t y) {
  display->drawXbm(x, y, BT_width, BT_height, BT_bits);
  display->drawXbm(x + 12 + 1, y, WIFI_width, WIFI_height, WIFI_bits);
  display->drawXbm(x + 108, y, BAT_width, BAT_height, BAT_bits);
  display->setFont(ArialMT_Plain_24);
  display->drawString(x + 28, y + 5, "HelTec");
}

void drawFrame2(OLEDDisplay *display, OLEDDisplayUiState* state, int16_t x, int16_t y) {
  //display->drawXbm(x, y, BT_width, BT_height, BT_bits);
  //display->drawXbm(x + 12 + 1, y, WIFI_width, WIFI_height, WIFI_bits);
  //display->drawXbm(x + 108, y, BAT_width, BAT_height, BAT_bits);
  display->drawString(x + 10, y + 5, "WIFI KIT 8");
}

void drawFrame3(OLEDDisplay *display, OLEDDisplayUiState* state, int16_t x, int16_t y) {
  display->drawXbm(x + 25, y, HelTec_LOGO_width, HelTec_LOGO_height, HelTec_LOGO_bits);
}

void drawFrame4(OLEDDisplay *display, OLEDDisplayUiState* state, int16_t x, int16_t y) {
  display->setTextAlignment(TEXT_ALIGN_LEFT);
  //display->setFont(ArialMT_Plain_16);
  //display->drawString(x, y, "HelTec");
  display->setFont(ArialMT_Plain_10);
  display->drawString(x, y , "HelTec AutoMation");
  display->drawString(x, y + 10, "www.heltec.cn");
}

FrameCallback frames[] = { drawFrame1, drawFrame2, drawFrame3, drawFrame4 };

int frameCount = 4;

//OverlayCallback overlays[] = { msOverlay };
//int overlaysCount = 1;

void setup() {
   
  Heltec.begin(true /*DisplayEnable Enable*/, true /*Serial Enable*/);

  ui.setTargetFPS(30);

  // Customize the active and inactive symbol
  ui.setActiveSymbol(activeSymbol);
  ui.setInactiveSymbol(inactiveSymbol);

  // You can change this to
  // TOP, LEFT, BOTTOM, RIGHT
  ui.setIndicatorPosition(BOTTOM);

  // Defines where the first frame is located in the bar.
  ui.setIndicatorDirection(LEFT_RIGHT);

  // You can change the transition that is used
  // SLIDE_LEFT, SLIDE_RIGHT, SLIDE_UP, SLIDE_DOWN
  ui.setFrameAnimation(SLIDE_LEFT);

  // Add frames
  ui.setFrames(frames, frameCount);

  // Add overlays
//  ui.setOverlays(overlays, overlaysCount);

  // Initialising the UI will init the display too.
  ui.init();

  Heltec.display->flipScreenVertically();
}

void loop() {
  int remainingTimeBudget = ui.update();

  if (remainingTimeBudget > 0) {
    // You can do some work here
    // Don't do stuff if you are below your
    // time budget.
    delay(remainingTimeBudget);
  }
 }