NEW-OLED-MENU WITH COMPASS Copy (4) - Wokwi ESP32, STM32, Arduino Simulator


#include <Arduino.h>
#include <U8g2lib.h>

#define JOY_PIN_X 35
#define JOY_PIN_Y 34
#define JOY_PIN_BUTTON 13
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>

#include <QMC5883LCompass.h>


#define bleu_led_pin 26
#define green_led_pin 25
#define red_led_pin 24
#define buzzer_pin 23

#define bat_level_pin 14
#define  Switch_pin1 32
#define  Switch_pin2 33

#define joystick_x 35
#define joystick_y 34
#define joystick_sw 39 //VN

#define in_clock_pin 8
//#define out_clock_pin 32
#define IN_SIGNAL_GPIO 27



#define SERVICE_UUID           "6E400001-B5A3-F393-E0A9-E50E24DCCA9E" // UART service UUID
#define CHARACTERISTIC_UUID_RX "6E400002-B5A3-F393-E0A9-E50E24DCCA9E"
#define CHARACTERISTIC_UUID_TX "6E400003-B5A3-F393-E0A9-E50E24DCCA9E"

BLECharacteristic *pCharacteristic;
#define BatteryService BLEUUID((uint16_t)0x180F)

BLECharacteristic BatteryLevelCharacteristic(BLEUUID((uint16_t)0x2A19), BLECharacteristic::PROPERTY_READ | BLECharacteristic::PROPERTY_NOTIFY);
BLEDescriptor BatteryLevelDescriptor(BLEUUID((uint16_t)0x2901));

QMC5883LCompass compass;

//========================================================================
signed long myTime,myTime_0,standby_Time,global_Time;
uint8_t battery_level = 0;

double  tValue =  10.00;
bool deviceConnected = false;
char inputble;
float txValue = 0;
char txString[8]; // make sure this is big enuffz

bool live_scan_mode_flag;
//std::string rxValue; // Could also make this a global var to access it in loop()

// See the following for generating UUIDs:
// https://www.uuidgenerator.net/

double _conversionTable [21]= {3.200, 3.450,3.700, 3.716, 3.732,3.748,3.765,3.781,3.797,3.821,3.847,3.874,3.900,3.928, 3.956,3.983,4.015, 4.054,4.092,4.144,4.200};
//==========================================================live=Measured_Time;
                       
int16_t Blue_touth_state=0; 
hw_timer_t *Timer0_Cfg = NULL;
hw_timer_t * timer = NULL;
volatile uint8_t PIN_LED_state = 0;
bool Measurement_InProgress = false;
uint32_t Measured_Time = 0;
uint32_t Measured_Freq = 0;
uint32_t  periode;
uint32_t  live;


const int filter_order = 5;
int16_t number_of_last_neglited_values=5;
int16_t nbr_values=filter_order-number_of_last_neglited_values;//25664
int32_t  historic_detection_values[filter_order];
int32_t fff0;
//===================================================================

void Battery18650_init_ConversionTable();
void Shift_vector(int32_t valx,int32_t(&historic_detection_values)[filter_order]);
int32_t get_mean_historic_values_and_neglate(int32_t (&historic_detection_values)[filter_order]);
int32_t get_mean_historic_values(int32_t (&historic_detection_values)[filter_order]);
void IRAM_ATTR Ext_INT1_ISR();
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE);


const char* menuItems[] = {"Sensitivity", "Filter", "Sound", "Bluetooth", "Default"};
int selectedItem = 0;
bool inMainMenu = true;
bool inSubMenu = false;
int sensitivityValue = 1;
int filterValue = 0; 
int soundValue = 8; 
int bluetoothValue = 0; 
unsigned long lastJoyMove = 0;
unsigned long lastButtonPress = 0;
const char* bluetoothMenuItems[] = {"Classic ble", "Low energy"};
int bluetoothSelectedItem = 0;
bool inBluetoothMenu = false;
 unsigned long lastActivityTime = millis();
 bool buttonPressed = false;
// 'item_sel_outline', 128x20px
const unsigned char bitmap_item_sel_outline [] PROGMEM = {
      0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 
  0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 
  0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe0, 
  0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

// 'img_bubble_fill', 26x13px
const unsigned char epd_bitmap_img_bubble_fill [] PROGMEM = {
  0xfc, 0xff, 0xff, 0x00, 0xfe, 0xff, 0xff, 0x01, 0xfe, 0xff, 0xff, 0x01, 0xfe, 0xff, 0xff, 0x01,
  0xfe, 0xff, 0xff, 0x01, 0xfe, 0xff, 0xff, 0x01, 0xfe, 0xff, 0xff, 0x01, 0xfe, 0xff, 0xff, 0x01,
  0xfc, 0xff, 0xff, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00
};
// 'img_bubble_outline', 26x13px
const unsigned char epd_bitmap_img_bubble_outline [] PROGMEM = {
  0xfe, 0xff, 0xff, 0x01, 0xff, 0xff, 0xff, 0x03, 0xff, 0xff, 0xff, 0x03, 0xff, 0xff, 0xff, 0x03,
  0xff, 0xff, 0xff, 0x03, 0xff, 0xff, 0xff, 0x03, 0xff, 0xff, 0xff, 0x03, 0xff, 0xff, 0xff, 0x03,
  0xfe, 0xff, 0xff, 0x01, 0xfc, 0xff, 0xff, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00,
  0x00, 0x30, 0x00, 0x00
};


// scaled labels as images

// '000_letter_n_0', 26x12px
const unsigned char epd_bitmap_000_letter_n_0 [] PROGMEM = {
  0x00, 0x48, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00, 0x58, 0x00, 0x00,
  0x00, 0x58, 0x00, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00,
  0x00, 0x68, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00
};
// '000_letter_n_1', 26x12px
const unsigned char epd_bitmap_000_letter_n_1 [] PROGMEM = {
  0x00, 0x88, 0x00, 0x00, 0x00, 0x98, 0x00, 0x00, 0x00, 0x98, 0x00, 0x00, 0x00, 0x98, 0x00, 0x00,
  0x00, 0x98, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00,
  0x00, 0xc8, 0x00, 0x00, 0x00, 0xc8, 0x00, 0x00, 0x00, 0xc8, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00
};
// '000_letter_n_2', 26x12px
const unsigned char epd_bitmap_000_letter_n_2 [] PROGMEM = {
  0x00, 0x8c, 0x01, 0x00, 0x00, 0x9c, 0x01, 0x00, 0x00, 0x9c, 0x01, 0x00, 0x00, 0xbc, 0x01, 0x00,
  0x00, 0xbc, 0x01, 0x00, 0x00, 0xbc, 0x01, 0x00, 0x00, 0xec, 0x01, 0x00, 0x00, 0xec, 0x01, 0x00,
  0x00, 0xec, 0x01, 0x00, 0x00, 0xcc, 0x01, 0x00, 0x00, 0xcc, 0x01, 0x00, 0x00, 0x8c, 0x01, 0x00
};
// '000_letter_n_3', 26x12px
const unsigned char epd_bitmap_000_letter_n_3 [] PROGMEM = {
  0x00, 0x03, 0x03, 0x00, 0x00, 0x07, 0x03, 0x00, 0x00, 0x0f, 0x03, 0x00, 0x00, 0x0f, 0x03, 0x00,
  0x00, 0x1b, 0x03, 0x00, 0x00, 0x33, 0x03, 0x00, 0x00, 0x33, 0x03, 0x00, 0x00, 0x63, 0x03, 0x00,
  0x00, 0xc3, 0x03, 0x00, 0x00, 0xc3, 0x03, 0x00, 0x00, 0x83, 0x03, 0x00, 0x00, 0x03, 0x03, 0x00
};
// '045_letter_ne_0', 26x12px
const unsigned char epd_bitmap_045_letter_ne_0 [] PROGMEM = {
  0x00, 0xd2, 0x01, 0x00, 0x00, 0xd2, 0x01, 0x00, 0x00, 0x56, 0x00, 0x00, 0x00, 0x56, 0x00, 0x00,
  0x00, 0x56, 0x00, 0x00, 0x00, 0xd6, 0x01, 0x00, 0x00, 0xda, 0x01, 0x00, 0x00, 0x5a, 0x00, 0x00,
  0x00, 0x5a, 0x00, 0x00, 0x00, 0x5a, 0x00, 0x00, 0x00, 0xd2, 0x01, 0x00, 0x00, 0xd2, 0x01, 0x00
};
// '045_letter_ne_1', 26x12px
const unsigned char epd_bitmap_045_letter_ne_1 [] PROGMEM = {
  0x00, 0xd1, 0x03, 0x00, 0x00, 0xd3, 0x03, 0x00, 0x00, 0x53, 0x00, 0x00, 0x00, 0x53, 0x00, 0x00,
  0x00, 0x53, 0x00, 0x00, 0x00, 0xd5, 0x03, 0x00, 0x00, 0xd5, 0x03, 0x00, 0x00, 0x55, 0x00, 0x00,
  0x00, 0x59, 0x00, 0x00, 0x00, 0x59, 0x00, 0x00, 0x00, 0xd9, 0x03, 0x00, 0x00, 0xd1, 0x03, 0x00
};
// '045_letter_ne_2', 26x12px
const unsigned char epd_bitmap_045_letter_ne_2 [] PROGMEM = {
  0xc0, 0xd8, 0x0f, 0x00, 0xc0, 0xd9, 0x0f, 0x00, 0xc0, 0xd9, 0x00, 0x00, 0xc0, 0xdb, 0x00, 0x00,
  0xc0, 0xdb, 0x00, 0x00, 0xc0, 0xdb, 0x0f, 0x00, 0xc0, 0xde, 0x0f, 0x00, 0xc0, 0xde, 0x00, 0x00,
  0xc0, 0xde, 0x00, 0x00, 0xc0, 0xdc, 0x00, 0x00, 0xc0, 0xdc, 0x0f, 0x00, 0xc0, 0xd8, 0x0f, 0x00
};
// '045_letter_ne_3', 26x12px
const unsigned char epd_bitmap_045_letter_ne_3 [] PROGMEM = {
  0x18, 0xd8, 0x7f, 0x00, 0x38, 0xd8, 0x7f, 0x00, 0x78, 0xd8, 0x00, 0x00, 0x78, 0xd8, 0x00, 0x00,
  0xd8, 0xd8, 0x00, 0x00, 0x98, 0xd9, 0x7f, 0x00, 0x98, 0xd9, 0x7f, 0x00, 0x18, 0xdb, 0x00, 0x00,
  0x18, 0xde, 0x00, 0x00, 0x18, 0xde, 0x00, 0x00, 0x18, 0xdc, 0x7f, 0x00, 0x18, 0xd8, 0x7f, 0x00
};
// '090_letter_e_0', 26x12px
const unsigned char epd_bitmap_090_letter_e_0 [] PROGMEM = {
  0x00, 0x38, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00,
  0x00, 0x08, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00,
  0x00, 0x08, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00
};
// '090_letter_e_1', 26x12px
const unsigned char epd_bitmap_090_letter_e_1 [] PROGMEM = {
  0x00, 0x78, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00,
  0x00, 0x08, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00,
  0x00, 0x08, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00
};
// '090_letter_e_2', 26x12px
const unsigned char epd_bitmap_090_letter_e_2 [] PROGMEM = {
  0x00, 0x7c, 0x00, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00,
  0x00, 0x0c, 0x00, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00,
  0x00, 0x0c, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x00, 0x7c, 0x00, 0x00
};
// '090_letter_e_3', 26x12px
const unsigned char epd_bitmap_090_letter_e_3 [] PROGMEM = {
  0x00, 0xfe, 0x03, 0x00, 0x00, 0xfe, 0x03, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00,
  0x00, 0x06, 0x00, 0x00, 0x00, 0xfe, 0x03, 0x00, 0x00, 0xfe, 0x03, 0x00, 0x00, 0x06, 0x00, 0x00,
  0x00, 0x06, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0xfe, 0x03, 0x00, 0x00, 0xfe, 0x03, 0x00
};
// '135_letter_se_1', 26x12px
const unsigned char epd_bitmap_135_letter_se_1 [] PROGMEM = {
  0x00, 0xe6, 0x01, 0x00, 0x00, 0xef, 0x01, 0x00, 0x00, 0x29, 0x00, 0x00, 0x00, 0x29, 0x00, 0x00,
  0x00, 0x23, 0x00, 0x00, 0x00, 0xe7, 0x01, 0x00, 0x00, 0xee, 0x01, 0x00, 0x00, 0x2c, 0x00, 0x00,
  0x00, 0x29, 0x00, 0x00, 0x00, 0x29, 0x00, 0x00, 0x00, 0xef, 0x01, 0x00, 0x00, 0xe6, 0x01, 0x00
};
// '135_letter_se_0', 26x12px
const unsigned char epd_bitmap_135_letter_se_0 [] PROGMEM = {
  0x00, 0xe4, 0x00, 0x00, 0x00, 0xee, 0x00, 0x00, 0x00, 0x2a, 0x00, 0x00, 0x00, 0x2a, 0x00, 0x00,
  0x00, 0x22, 0x00, 0x00, 0x00, 0xe6, 0x00, 0x00, 0x00, 0xec, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00,
  0x00, 0x2a, 0x00, 0x00, 0x00, 0x2a, 0x00, 0x00, 0x00, 0xee, 0x00, 0x00, 0x00, 0xe4, 0x00, 0x00
};
// '135_letter_se_2', 26x12px
const unsigned char epd_bitmap_135_letter_se_2 [] PROGMEM = {
  0x00, 0xcf, 0x07, 0x00, 0x80, 0xdf, 0x07, 0x00, 0x80, 0xd9, 0x00, 0x00, 0x80, 0xd9, 0x00, 0x00,
  0x80, 0xc3, 0x00, 0x00, 0x00, 0xcf, 0x07, 0x00, 0x00, 0xde, 0x07, 0x00, 0x00, 0xdc, 0x00, 0x00,
  0x80, 0xd9, 0x00, 0x00, 0x80, 0xd9, 0x00, 0x00, 0x00, 0xdf, 0x07, 0x00, 0x00, 0xcf, 0x07, 0x00
};
// '135_letter_se_3', 26x12px
const unsigned char epd_bitmap_135_letter_se_3 [] PROGMEM = {
  0xe0, 0xc3, 0x7f, 0x00, 0xf0, 0xc7, 0x7f, 0x00, 0x18, 0xce, 0x00, 0x00, 0x18, 0xcc, 0x00, 0x00,
  0x78, 0xc0, 0x00, 0x00, 0xf0, 0xc3, 0x7f, 0x00, 0xc0, 0xc7, 0x7f, 0x00, 0x00, 0xce, 0x00, 0x00,
  0x18, 0xcc, 0x00, 0x00, 0x38, 0xce, 0x00, 0x00, 0xf0, 0xc7, 0x7f, 0x00, 0xe0, 0xc3, 0x7f, 0x00
};
// '180_letter_s_0', 26x12px
const unsigned char epd_bitmap_180_letter_s_0 [] PROGMEM = {
  0x00, 0x20, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00,
  0x00, 0x10, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00,
  0x00, 0x50, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00
};
// '180_letter_s_1', 26x12px
const unsigned char epd_bitmap_180_letter_s_1 [] PROGMEM = {
  0x00, 0x30, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00,
  0x00, 0x18, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00,
  0x00, 0x48, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00
};
// '180_letter_s_2', 26x12px
const unsigned char epd_bitmap_180_letter_s_2 [] PROGMEM = {
  0x00, 0x78, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, 0xcc, 0x00, 0x00, 0x00, 0xcc, 0x00, 0x00,
  0x00, 0x1c, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0xf0, 0x00, 0x00, 0x00, 0xe0, 0x00, 0x00,
  0x00, 0xcc, 0x00, 0x00, 0x00, 0xcc, 0x00, 0x00, 0x00, 0xf8, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00
};
// '180_letter_s_3', 26x12px
const unsigned char epd_bitmap_180_letter_s_3 [] PROGMEM = {
  0x00, 0xf8, 0x00, 0x00, 0x00, 0xfc, 0x01, 0x00, 0x00, 0x86, 0x03, 0x00, 0x00, 0x06, 0x03, 0x00,
  0x00, 0x1e, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, 0xf0, 0x01, 0x00, 0x00, 0x80, 0x03, 0x00,
  0x00, 0x06, 0x03, 0x00, 0x00, 0x8e, 0x03, 0x00, 0x00, 0xfc, 0x01, 0x00, 0x00, 0xf8, 0x00, 0x00
};
// '225_letter_sw_0', 26x12px
const unsigned char epd_bitmap_225_letter_sw_0 [] PROGMEM = {
  0x00, 0x52, 0x01, 0x00, 0x00, 0x57, 0x01, 0x00, 0x00, 0x55, 0x01, 0x00, 0x00, 0x55, 0x01, 0x00,
  0x00, 0x51, 0x01, 0x00, 0x00, 0x53, 0x01, 0x00, 0x00, 0x56, 0x01, 0x00, 0x00, 0x54, 0x01, 0x00,
  0x00, 0xa5, 0x00, 0x00, 0x00, 0xa5, 0x00, 0x00, 0x00, 0xa7, 0x00, 0x00, 0x00, 0xa2, 0x00, 0x00
};
// '225_letter_sw_1', 26x12px
const unsigned char epd_bitmap_225_letter_sw_1 [] PROGMEM = {
  0x80, 0x89, 0x08, 0x00, 0xc0, 0x8b, 0x08, 0x00, 0x40, 0x8a, 0x08, 0x00, 0x40, 0x52, 0x05, 0x00,
  0xc0, 0x50, 0x05, 0x00, 0xc0, 0x51, 0x05, 0x00, 0x80, 0x53, 0x05, 0x00, 0x00, 0x53, 0x05, 0x00,
  0x40, 0x52, 0x05, 0x00, 0x40, 0x22, 0x02, 0x00, 0xc0, 0x23, 0x02, 0x00, 0x80, 0x21, 0x02, 0x00
};
// '225_letter_sw_2', 26x12px
const unsigned char epd_bitmap_225_letter_sw_2 [] PROGMEM = {
  0xc0, 0x33, 0x62, 0x00, 0xe0, 0x37, 0x66, 0x00, 0x60, 0x36, 0x67, 0x00, 0x60, 0x66, 0x35, 0x00,
  0xe0, 0x60, 0x35, 0x00, 0xc0, 0x63, 0x35, 0x00, 0x80, 0x67, 0x35, 0x00, 0x00, 0x67, 0x35, 0x00,
  0x60, 0xc6, 0x1d, 0x00, 0x60, 0xc6, 0x18, 0x00, 0xc0, 0xc7, 0x18, 0x00, 0xc0, 0xc3, 0x18, 0x00
};
// '225_letter_sw_3', 26x12px
const unsigned char epd_bitmap_225_letter_sw_3 [] PROGMEM = {
  0xf8, 0x18, 0x0e, 0x03, 0xfc, 0x39, 0x0e, 0x03, 0x86, 0x33, 0x8e, 0x01, 0x06, 0x33, 0x9b, 0x01,
  0x1e, 0x30, 0x9b, 0x01, 0xfc, 0x60, 0xdb, 0x00, 0xf0, 0x61, 0xdb, 0x00, 0x80, 0x63, 0xdb, 0x00,
  0x06, 0xc3, 0xf1, 0x00, 0x8e, 0xc3, 0x71, 0x00, 0xfc, 0xc1, 0x71, 0x00, 0xf8, 0xc0, 0x71, 0x00
};
// '270_letter_w_1', 26x12px
const unsigned char epd_bitmap_270_letter_w_1 [] PROGMEM = {
  0x00, 0x22, 0x02, 0x00, 0x00, 0x22, 0x02, 0x00, 0x00, 0x22, 0x02, 0x00, 0x00, 0x54, 0x01, 0x00,
  0x00, 0x54, 0x01, 0x00, 0x00, 0x54, 0x01, 0x00, 0x00, 0x54, 0x01, 0x00, 0x00, 0x54, 0x01, 0x00,
  0x00, 0x54, 0x01, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00
};
// '270_letter_w_0', 26x12px
const unsigned char epd_bitmap_270_letter_w_0 [] PROGMEM = {
  0x00, 0xa8, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00,
  0x00, 0xa8, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00,
  0x00, 0x50, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00
};
// '270_letter_w_2', 26x12px
const unsigned char epd_bitmap_270_letter_w_2 [] PROGMEM = {
  0x00, 0x23, 0x06, 0x00, 0x00, 0x73, 0x06, 0x00, 0x00, 0x73, 0x06, 0x00, 0x00, 0x56, 0x03, 0x00,
  0x00, 0x56, 0x03, 0x00, 0x00, 0x56, 0x03, 0x00, 0x00, 0x56, 0x03, 0x00, 0x00, 0x56, 0x03, 0x00,
  0x00, 0xdc, 0x01, 0x00, 0x00, 0x8c, 0x01, 0x00, 0x00, 0x8c, 0x01, 0x00, 0x00, 0x8c, 0x01, 0x00
};
// '270_letter_w_3', 26x12px
const unsigned char epd_bitmap_270_letter_w_3 [] PROGMEM = {
  0xc0, 0x70, 0x18, 0x00, 0xc0, 0x71, 0x18, 0x00, 0x80, 0x71, 0x0c, 0x00, 0x80, 0xd9, 0x0c, 0x00,
  0x80, 0xd9, 0x0c, 0x00, 0x00, 0xdb, 0x06, 0x00, 0x00, 0xdb, 0x06, 0x00, 0x00, 0xdb, 0x06, 0x00,
  0x00, 0x8e, 0x07, 0x00, 0x00, 0x8e, 0x03, 0x00, 0x00, 0x8e, 0x03, 0x00, 0x00, 0x8e, 0x03, 0x00
};
// '315_letter_nw_1', 26x12px
const unsigned char epd_bitmap_315_letter_nw_1 [] PROGMEM = {
  0x20, 0x8a, 0x08, 0x00, 0x60, 0x8a, 0x08, 0x00, 0x60, 0x8a, 0x08, 0x00, 0x60, 0x52, 0x05, 0x00,
  0x60, 0x52, 0x05, 0x00, 0xa0, 0x52, 0x05, 0x00, 0xa0, 0x52, 0x05, 0x00, 0xa0, 0x52, 0x05, 0x00,
  0x20, 0x53, 0x05, 0x00, 0x20, 0x23, 0x02, 0x00, 0x20, 0x23, 0x02, 0x00, 0x20, 0x22, 0x02, 0x00
};
// '315_letter_nw_0', 26x12px
const unsigned char epd_bitmap_315_letter_nw_0 [] PROGMEM = {
  0x00, 0xa9, 0x02, 0x00, 0x00, 0xa9, 0x02, 0x00, 0x00, 0xab, 0x02, 0x00, 0x00, 0xab, 0x02, 0x00,
  0x00, 0xab, 0x02, 0x00, 0x00, 0xab, 0x02, 0x00, 0x00, 0xad, 0x02, 0x00, 0x00, 0xad, 0x02, 0x00,
  0x00, 0x4d, 0x01, 0x00, 0x00, 0x4d, 0x01, 0x00, 0x00, 0x49, 0x01, 0x00, 0x00, 0x49, 0x01, 0x00
};
// '315_letter_nw_2', 26x12px
const unsigned char epd_bitmap_315_letter_nw_2 [] PROGMEM = {
  0x60, 0x36, 0x62, 0x00, 0xe0, 0x36, 0x67, 0x00, 0xe0, 0x36, 0x67, 0x00, 0xe0, 0x67, 0x35, 0x00,
  0xe0, 0x67, 0x35, 0x00, 0xe0, 0x67, 0x35, 0x00, 0xe0, 0x67, 0x35, 0x00, 0xe0, 0x67, 0x35, 0x00,
  0xe0, 0xc7, 0x1d, 0x00, 0x60, 0xc7, 0x18, 0x00, 0x60, 0xc7, 0x18, 0x00, 0x60, 0xc6, 0x18, 0x00
};
// '315_letter_nw_3', 26x12px
const unsigned char epd_bitmap_315_letter_nw_3 [] PROGMEM = {
  0x03, 0x1b, 0x0e, 0x03, 0x07, 0x3b, 0x0e, 0x03, 0x0f, 0x33, 0x8e, 0x01, 0x0f, 0x33, 0x9b, 0x01,
  0x1b, 0x33, 0x9b, 0x01, 0x33, 0x63, 0xdb, 0x00, 0x33, 0x63, 0xdb, 0x00, 0x63, 0x63, 0xdb, 0x00,
  0xc3, 0xc3, 0xf1, 0x00, 0xc3, 0xc3, 0x71, 0x00, 0x83, 0xc3, 0x71, 0x00, 0x03, 0xc3, 0x71, 0x00
};
 //'gs22', 50x32px
const unsigned char epd_bitmap_gs22 [] PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x00, 0xf0, 0x7f, 0xc0, 0xff, 0x0f, 0x00, 0x00, 0xfe, 
  0xff, 0xf1, 0xff, 0x7f, 0x00, 0x80, 0xff, 0xff, 0xe7, 0xff, 0xff, 0x01, 0xc0, 0xff, 0xff, 0xcf, 
  0xff, 0xff, 0x03, 0xe0, 0xff, 0xff, 0xdf, 0xff, 0xff, 0x01, 0xf0, 0xff, 0xff, 0xcf, 0xff, 0xff, 
  0x01, 0xf8, 0xff, 0xff, 0xe7, 0xff, 0xff, 0x00, 0xf8, 0xff, 0xff, 0xf3, 0x83, 0x7f, 0x00, 0xfc, 
  0x7f, 0xf0, 0xf9, 0x03, 0x78, 0x00, 0xfc, 0x1f, 0x80, 0xfc, 0x07, 0x20, 0x00, 0xfe, 0x0f, 0x00, 
  0xfe, 0x7f, 0x00, 0x00, 0xfe, 0x07, 0x00, 0xc0, 0xff, 0x03, 0x00, 0xfe, 0x07, 0x00, 0x80, 0xff, 
  0x1f, 0x00, 0xfe, 0x03, 0xfe, 0xbf, 0xff, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0xfe, 0x03, 0xfe, 0xbf, 0xff, 0xff, 0x01, 0xfe, 0x03, 0xfe, 0xbf, 0xff, 0xff, 0x01, 0xfe, 0x07, 
  0xfe, 0xbf, 0xff, 0xff, 0x03, 0xfe, 0x07, 0xfe, 0x3f, 0xf8, 0xff, 0x03, 0xfe, 0x0f, 0xc0, 0x3f, 
  0x80, 0xff, 0x03, 0xfc, 0x0f, 0xc0, 0x3f, 0x00, 0xff, 0x03, 0xfc, 0x3f, 0xe0, 0xbf, 0x00, 0xff, 
  0x03, 0xf8, 0xff, 0xff, 0xbf, 0xff, 0xff, 0x03, 0xf8, 0xff, 0xff, 0xbf, 0xff, 0xff, 0x03, 0xf0, 
  0xff, 0xff, 0xbf, 0xff, 0xff, 0x01, 0xe0, 0xff, 0xff, 0xbf, 0xff, 0xff, 0x01, 0xc0, 0xff, 0xff, 
  0x9f, 0xff, 0xff, 0x00, 0x80, 0xff, 0xff, 0xcf, 0xff, 0x7f, 0x00, 0x00, 0xfe, 0xff, 0xe3, 0xff, 
  0x1f, 0x00, 0x00, 0xfc, 0xff, 0xc0, 0xff, 0x0f, 0x00, 0x00, 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00
};

// 'logo', 128x64px
const unsigned char epd_bitmap_logo [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xff, 0x0f, 0x80, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f, 0xe0, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0xf1, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0xf3, 0xff, 0xff, 0xff, 0x03, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xc0, 0xff, 0xff, 0xff, 0xe7, 0xff, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xf0, 0xff, 0xff, 0xff, 0xcf, 0xff, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0xff, 0x9f, 0xff, 0xff, 0xff, 0x03, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0xff, 0x9f, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0xff, 0xcf, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0xff, 0xe7, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xf3, 0x3f, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xf9, 0x0f, 0xc0, 0x7f, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0x01, 0xfc, 0xfc, 0x0f, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x80, 0xff, 0x7f, 0x00, 0x70, 0xfe, 0x3f, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xc0, 0xff, 0x3f, 0x00, 0x20, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xc0, 0xff, 0x1f, 0x00, 0x80, 0xff, 0xff, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xc0, 0xff, 0x0f, 0x00, 0x80, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xc0, 0xff, 0x0f, 0x00, 0x00, 0x80, 0xff, 0xff, 0x03, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xe0, 0xff, 0x07, 0xf0, 0xff, 0x3f, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xe0, 0xff, 0x07, 0xf0, 0xff, 0x7f, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xe0, 0xff, 0x07, 0xf0, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0xf0, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0x0f, 0x00, 
  0x00, 0x00, 0x00, 0xe0, 0xff, 0x07, 0xf0, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x03, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xe0, 0xff, 0x07, 0xf0, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x03, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xe0, 0xff, 0x07, 0xf0, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xc0, 0xff, 0x07, 0xf0, 0xff, 0x7f, 0xfe, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xc0, 0xff, 0x0f, 0xf0, 0xff, 0x7f, 0xc0, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xc0, 0xff, 0x0f, 0xe0, 0xff, 0x7f, 0x00, 0xfe, 0xff, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xc0, 0xff, 0x1f, 0x00, 0xf8, 0x7f, 0x00, 0xe0, 0xff, 0x0f, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x80, 0xff, 0x3f, 0x00, 0xf8, 0x7f, 0x00, 0xc0, 0xff, 0x0f, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x80, 0xff, 0x7f, 0x00, 0xf8, 0x7f, 0x00, 0xc0, 0xff, 0x0f, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x03, 0xff, 0x7f, 0x0f, 0xe0, 0xff, 0x0f, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x03, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x03, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xf0, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xe0, 0xff, 0xff, 0xff, 0x9f, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xc0, 0xff, 0xff, 0xff, 0xcf, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xe7, 0xff, 0xff, 0x3f, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0xf1, 0xff, 0xff, 0x0f, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f, 0x80, 0xff, 0xff, 0x03, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xff, 0x03, 0x00, 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'bluetooth1', 24x16px
const unsigned char epd_bitmap_bluetooth1 [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x18, 0x00, 0x00, 0x38, 0x00, 0x80, 0x68, 0x00, 0x00, 
  0xc9, 0x00, 0x00, 0x6a, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x6a, 
  0x00, 0x00, 0xc9, 0x00, 0x80, 0x68, 0x00, 0x00, 0x38, 0x00, 0x00, 0x18, 0x00, 0x00, 0x08, 0x00
};
// 'battry', 31x20px
const unsigned char epd_bitmap_battry [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x80, 0xff, 0xff, 0x03, 0x40, 0x00, 0x00, 0x06, 0x40, 0x00, 0x00, 0x06, 0x48, 0x00, 0x00, 0x06, 
  0x5c, 0x00, 0x00, 0x06, 0x5c, 0x00, 0x00, 0x06, 0x5c, 0x00, 0x00, 0x06, 0x5c, 0x00, 0x00, 0x06, 
  0x48, 0x00, 0x00, 0x06, 0xc0, 0x00, 0x00, 0x06, 0xc0, 0xff, 0xff, 0x07, 0x80, 0xff, 0xff, 0x03, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

// 'output-onlinepngtools-fotor-bg-r', 50x32px
const unsigned char epd_bitmap_output_onlinepngtools_fotor_bg_r [] PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x00, 0xf0, 0x7f, 0xc0, 0xff, 0x0f, 0x00, 0x00, 0xfe, 
  0xff, 0xf1, 0xff, 0x7f, 0x00, 0x80, 0xff, 0xff, 0xe7, 0xff, 0xff, 0x01, 0xc0, 0xff, 0xff, 0xcf, 
  0xff, 0xff, 0x03, 0xe0, 0xff, 0xff, 0xdf, 0xff, 0xff, 0x01, 0xf0, 0xff, 0xff, 0xcf, 0xff, 0xff, 
  0x01, 0xf8, 0xff, 0xff, 0xe7, 0xff, 0xff, 0x00, 0xf8, 0xff, 0xff, 0xf3, 0x83, 0x7f, 0x00, 0xfc, 
  0x7f, 0xf0, 0xf9, 0x03, 0x78, 0x00, 0xfc, 0x1f, 0x80, 0xfc, 0x07, 0x20, 0x00, 0xfe, 0x0f, 0x00, 
  0xfe, 0x7f, 0x00, 0x00, 0xfe, 0x07, 0x00, 0xc0, 0xff, 0x03, 0x00, 0xfe, 0x07, 0x00, 0x80, 0xff, 
  0x1f, 0x00, 0xfe, 0x03, 0xfe, 0xbf, 0xff, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0xfe, 0x03, 0xfe, 0xbf, 0xff, 0xff, 0x01, 0xfe, 0x03, 0xfe, 0xbf, 0xff, 0xff, 0x01, 0xfe, 0x07, 
  0xfe, 0xbf, 0xff, 0xff, 0x03, 0xfe, 0x07, 0xfe, 0x3f, 0xf8, 0xff, 0x03, 0xfe, 0x0f, 0xc0, 0x3f, 
  0x80, 0xff, 0x03, 0xfc, 0x0f, 0xc0, 0x3f, 0x00, 0xff, 0x03, 0xfc, 0x3f, 0xe0, 0xbf, 0x00, 0xff, 
  0x03, 0xf8, 0xff, 0xff, 0xbf, 0xff, 0xff, 0x03, 0xf8, 0xff, 0xff, 0xbf, 0xff, 0xff, 0x03, 0xf0, 
  0xff, 0xff, 0xbf, 0xff, 0xff, 0x01, 0xe0, 0xff, 0xff, 0xbf, 0xff, 0xff, 0x01, 0xc0, 0xff, 0xff, 
  0x9f, 0xff, 0xff, 0x00, 0x80, 0xff, 0xff, 0xcf, 0xff, 0x7f, 0x00, 0x00, 0xfe, 0xff, 0xe3, 0xff, 
  0x1f, 0x00, 0x00, 0xfc, 0xff, 0xc0, 0xff, 0x0f, 0x00, 0x00, 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00
};

// Array of all bitmaps for convenience. (Total bytes used to store images in PROGMEM = 2048)
const int epd_bitmap_allArray_LEN = 32;
const unsigned char* character_bitmaps[32] = {
  epd_bitmap_000_letter_n_0,
  epd_bitmap_000_letter_n_1,
  epd_bitmap_000_letter_n_2,
  epd_bitmap_000_letter_n_3,
  epd_bitmap_045_letter_ne_0,
  epd_bitmap_045_letter_ne_1,
  epd_bitmap_045_letter_ne_2,
  epd_bitmap_045_letter_ne_3,
  epd_bitmap_090_letter_e_0,
  epd_bitmap_090_letter_e_1,
  epd_bitmap_090_letter_e_2,
  epd_bitmap_090_letter_e_3,
  epd_bitmap_135_letter_se_0,
  epd_bitmap_135_letter_se_1,
  epd_bitmap_135_letter_se_2,
  epd_bitmap_135_letter_se_3,
  epd_bitmap_180_letter_s_0,
  epd_bitmap_180_letter_s_1,
  epd_bitmap_180_letter_s_2,
  epd_bitmap_180_letter_s_3,
  epd_bitmap_225_letter_sw_0,
  epd_bitmap_225_letter_sw_1,
  epd_bitmap_225_letter_sw_2,
  epd_bitmap_225_letter_sw_3,
  epd_bitmap_270_letter_w_0,
  epd_bitmap_270_letter_w_1,
  epd_bitmap_270_letter_w_2,
  epd_bitmap_270_letter_w_3,
  epd_bitmap_315_letter_nw_0,
  epd_bitmap_315_letter_nw_1,
  epd_bitmap_315_letter_nw_2,
  epd_bitmap_315_letter_nw_3
};



int compass_degrees; // 0-360° -- compass heading, for now, this value is taken from the potentiometer value
char buffer[20]; // helper buffer for displaying strings on the display
int xpos_offset; // x offset of all the tickmarks
int xpos_with_offset; // x position of the tickmark with applied offset
float xpos_final; // final x position for the tickmark
int str_width; // calculated width of the string

int labels_count = 3; // number of different images for every label (for example, "SW"), 3 = total of 4 images per label
int label_display = 0; // which label version to display for the current big tickmark
int SHOW_SCALED_LABEL = 1; // should we show the scaled label (drawn using image) or the standard non-scaled label (drawn using the u8g2 font)

char *compass_labels[] = {"N", "NE", "E", "SE", "S", "SW", "W", "NW", "N"}; // array with strings for big tickmarks


#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_DC    9
#define OLED_RESET 10 
#define OLED_CS    8
//Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &SPI, OLED_DC, OLED_RESET, OLED_CS);

int last_dx, last_dy, dx, dy, angle;
const int centreX = 86;
const int centreY = 32;
const int radius  = 30; 
void setup() {
   welcome();
  
}

void loop() {
  
  AHMAD_COMPASS();
  delay(150);
}