new oled driver (experimental)

include/display.h

@@ -1,16 +1,13 @@
 #ifndef _DISPLAY_H
 #define _DISPLAY_H
 
-#include <U8x8lib.h>
 #include "cyclic.h"
 
 extern uint8_t DisplayIsOn;
 
-extern HAS_DISPLAY u8x8;
-
 void init_display(const char *Productname, const char *Version);
 void refreshTheDisplay(bool nextPage = false);
 void draw_page(time_t t, uint8_t page);
-void DisplayKey(const uint8_t *key, uint8_t len, bool lsb);
+void dp_printf(int x, int y, int font, int inv, const char *format, ...);
 
 #endif

include/ota.h

@@ -4,6 +4,7 @@
 #ifdef USE_OTA
 
 #include "globals.h"
+#include <ss_oled.h>
 #include <Update.h>
 #include <WiFi.h>
 #include <WiFiClientSecure.h>
@@ -14,11 +15,9 @@
 int do_ota_update();
 void start_ota_update();
 int version_compare(const String v1, const String v2);
-void display(const uint8_t row, const std::string status,
+void ota_display(const uint8_t row, const std::string status,
-                       const std::string msg);
+                 const std::string msg);
-#ifdef HAS_DISPLAY
 void show_progress(unsigned long current, unsigned long size);
-#endif
 
 #endif // USE_OTA
 

platformio.ini

@@ -43,7 +43,7 @@ description = Paxcounter is a device for metering passenger flows in realtime. I
 
 [common]
 ; for release_version use max. 10 chars total, use any decimal format like "a.b.c"
-release_version = 1.8.34
+release_version = 1.8.4
 ; DEBUG LEVEL: For production run set to 0, otherwise device will leak RAM while running!
 ; 0=None, 1=Error, 2=Warn, 3=Info, 4=Debug, 5=Verbose
 debug_level = 3
@@ -57,7 +57,8 @@ upload_speed = 115200
 lib_deps_lora =
     MCCI LoRaWAN LMIC library@>=3.0.99
 lib_deps_display =
-    U8g2@>=2.26.13
+     ss_oled@>=2.1.1
+     BitBang_I2C@>=1.2.0
 lib_deps_matrix_display =
     https://github.com/Seeed-Studio/Ultrathin_LED_Matrix.git
 lib_deps_rgbled =

src/display.cpp

@@ -26,11 +26,11 @@ line 7: y = LMIC event message; ab = payload queue length
 
 // Basic Config
 #include "globals.h"
+#include <ss_oled.h>
 #include <esp_spi_flash.h> // needed for reading ESP32 chip attributes
 
 #define DISPLAY_PAGES (4) // number of display pages
-
+#define USE_BACKBUFFER    // for display library
-HAS_DISPLAY u8x8(MY_OLED_RST, MY_OLED_SCL, MY_OLED_SDA);
 
 // helper arry for converting month values to text
 const char *printmonth[] = {"xxx", "Jan", "Feb", "Mar", "Apr", "May", "Jun",
@@ -38,82 +38,63 @@ const char *printmonth[] = {"xxx", "Jan", "Feb", "Mar", "Apr", "May", "Jun",
 
 uint8_t DisplayIsOn = 0;
 
-// helper function, prints a hex key on display
-void DisplayKey(const uint8_t *key, uint8_t len, bool lsb) {
-  const uint8_t *p;
-  for (uint8_t i = 0; i < len; i++) {
-    p = lsb ? key + len - i - 1 : key + i;
-    u8x8.printf("%02X", *p);
-  }
-  u8x8.printf("\n");
-}
-
 void init_display(const char *Productname, const char *Version) {
 
   // block i2c bus access
   if (!I2C_MUTEX_LOCK())
     ESP_LOGV(TAG, "[%0.3f] i2c mutex lock failed", millis() / 1000.0);
   else {
-    // show startup screen
-    uint8_t buf[32];
-    u8x8.begin();
-    u8x8.setFont(u8x8_font_chroma48medium8_r);
-    u8x8.clear();
-    u8x8.setFlipMode(0);
-    u8x8.setInverseFont(1);
-    u8x8.draw2x2String(0, 0, Productname);
-    u8x8.setInverseFont(0);
-    u8x8.draw2x2String(2, 2, Productname);
-    delay(500);
-    u8x8.clear();
-    u8x8.setFlipMode(1);
-    u8x8.setInverseFont(1);
-    u8x8.draw2x2String(0, 0, Productname);
-    u8x8.setInverseFont(0);
-    u8x8.draw2x2String(2, 2, Productname);
-    delay(500);
 
-    u8x8.setFlipMode(0);
+    // init display
-    u8x8.clear();
+#ifndef DISPLAY_FLIP
-
+    oledInit(OLED_128x64, ANGLE_0, false, -1, -1, 400000L);
-#ifdef DISPLAY_FLIP
+#else
-    u8x8.setFlipMode(1);
+    oledInit(OLED_128x64, ANGLE_FLIPY, false, -1, -1, 400000L);
 #endif
 
-// Display chip information
+    // clear display
+    oledFill(0, 1);
+
+    // show startup screen
+    // to come -> display .bmp file with logo
+
+// show chip information
 #if (VERBOSE)
     esp_chip_info_t chip_info;
     esp_chip_info(&chip_info);
-    u8x8.printf("ESP32 %d cores\nWiFi%s%s\n", chip_info.cores,
+    dp_printf(0, 0, 0, 0, "ESP32 %d cores", chip_info.cores);
-                (chip_info.features & CHIP_FEATURE_BT) ? "/BT" : "",
+    dp_printf(0, 2, 0, 0, "Chip Rev.%d", chip_info.revision);
-                (chip_info.features & CHIP_FEATURE_BLE) ? "/BLE" : "");
+    dp_printf(0, 1, 0, 0, "WiFi%s%s",
-    u8x8.printf("ESP Rev.%d\n", chip_info.revision);
+              (chip_info.features & CHIP_FEATURE_BT) ? "/BT" : "",
-    u8x8.printf("%dMB %s Flash\n", spi_flash_get_chip_size() / (1024 * 1024),
+              (chip_info.features & CHIP_FEATURE_BLE) ? "/BLE" : "");
-                (chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "int."
+    dp_printf(0, 3, 0, 0, "%dMB %s Flash",
-                                                              : "ext.");
+              spi_flash_get_chip_size() / (1024 * 1024),
+              (chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "int." : "ext.");
 #endif // VERBOSE
 
-    u8x8.print(Productname);
-    u8x8.print(" v");
-    u8x8.println(PROGVERSION);
-
 #if (HAS_LORA)
-    u8x8.println("DEVEUI:");
+    uint8_t buf[34];
+    const uint8_t *p;
     os_getDevEui((u1_t *)buf);
-    DisplayKey(buf, 8, true);
+    dp_printf(0, 5, 0, 0, "DEVEUI:");
-    delay(3000);
+    for (uint8_t i = 0; i < 8; i++) {
+      p = buf + 7 - i;
+      dp_printf(i * 16, 6, 0, 0, "%02X", *p);
+    }
 #endif // HAS_LORA
-    u8x8.clear();
+
-    u8x8.setPowerSave(!cfg.screenon); // set display off if disabled
+    dp_printf(0, 4, 0, 0, "Software v%s", PROGVERSION);
-    u8x8.draw2x2String(0, 0, "PAX:0");
+    delay(3000);
+
+    oledFill(0, 1);
+    oledPower(cfg.screenon); // set display off if disabled
+    dp_printf(0, 0, 1, 0, "PAX:0");
 #if (BLECOUNTER)
-    u8x8.setCursor(0, 3);
+    dp_printf(0, 3, 0, 0, "BLTH:0");
-    u8x8.printf("BLTH:0");
 #endif
-    u8x8.setCursor(0, 4);
+    dp_printf(0, 4, 0, 0, "WIFI:0");
-    u8x8.printf("WIFI:0");
+    dp_printf(0, 5, 0, 0, !cfg.rssilimit ? "RLIM:off " : "RLIM:%d",
-    u8x8.setCursor(0, 5);
+              cfg.rssilimit);
-    u8x8.printf(!cfg.rssilimit ? "RLIM:off " : "RLIM:%d", cfg.rssilimit);
 
     I2C_MUTEX_UNLOCK(); // release i2c bus access
   }                     // mutex
@@ -137,12 +118,12 @@ void refreshTheDisplay(bool nextPage) {
     // set display on/off according to current device configuration
     if (DisplayIsOn != cfg.screenon) {
       DisplayIsOn = cfg.screenon;
-      u8x8.setPowerSave(!cfg.screenon);
+      oledPower(cfg.screenon);
     }
 
     if (nextPage) {
       DisplayPage = (DisplayPage >= DISPLAY_PAGES - 1) ? 0 : (DisplayPage + 1);
-      u8x8.clear();
+      oledFill(0, 1);
     }
 
     draw_page(t, DisplayPage);
@@ -161,11 +142,8 @@ void draw_page(time_t t, uint8_t page) {
 #endif
 
   // update counter (lines 0-1)
-  snprintf(
+  dp_printf(0, 0, FONT_STRETCHED, 0, "PAX:%-4d",
-      buff, sizeof(buff), "PAX:%-4d",
+            (int)macs.size()); // display number of unique macs total Wifi + BLE
-      (int)macs.size()); // convert 16-bit MAC counter to decimal counter value
-  u8x8.draw2x2String(0, 0,
-                     buff); // display number on unique macs total Wifi + BLE
 
   switch (page % DISPLAY_PAGES) {
 
@@ -178,139 +156,108 @@ void draw_page(time_t t, uint8_t page) {
 
 // update Battery status (line 2)
 #if (defined BAT_MEASURE_ADC || defined HAS_PMU)
-    u8x8.setCursor(0, 2);
     if (batt_voltage == 0xffff)
-      u8x8.printf("B:USB  ");
+      dp_printf(0, 2, 0, 0, "%s", "B:USB  ");
     else
-      u8x8.printf("B:%.2fV", batt_voltage / 1000.0);
+      dp_printf(0, 2, 0, 0, "B:%.2fV", batt_voltage / 1000.0);
 #endif
 
 // update GPS status (line 2)
 #if (HAS_GPS)
-    u8x8.setCursor(9, 2);
     if (gps.location.age() < 1500) // if no fix then display Sats value inverse
-      u8x8.printf("Sats:%.2d", gps.satellites.value());
+      dp_printf(72, 2, 0, 0, "Sats:%.2d", gps.satellites.value());
-    else {
+    else
-      u8x8.setInverseFont(1);
+      dp_printf(72, 2, 0, 1, "Sats:%.2d", gps.satellites.value());
-      u8x8.printf("Sats:%.2d", gps.satellites.value());
-      u8x8.setInverseFont(0);
-    }
 #endif
 
-    // update bluetooth counter + LoRa SF (line 3)
+      // update bluetooth counter + LoRa SF (line 3)
 #if (BLECOUNTER)
-    u8x8.setCursor(0, 3);
     if (cfg.blescan)
-      u8x8.printf("BLTH:%-5d", macs_ble);
+      dp_printf(0, 3, 0, 0, "BLTH:%-5d", macs_ble);
     else
-      u8x8.printf("%s", "BLTH:off");
+      dp_printf(0, 3, 0, 0, "%s", "BLTH:off");
 #endif
 
 #if (HAS_LORA)
-    u8x8.setCursor(12, 3);
+    if (cfg.adrmode)
-    if (!cfg.adrmode) // if ADR=off then display SF value inverse
+      dp_printf(96, 3, 0, 0, "%-4s", getSfName(updr2rps(LMIC.datarate)));
-      u8x8.setInverseFont(1);
+    else // if ADR=off then display SF value inverse
-    u8x8.printf("%-4s", getSfName(updr2rps(LMIC.datarate)));
+      dp_printf(96, 3, 0, 1, "%-4s", getSfName(updr2rps(LMIC.datarate)));
-    if (!cfg.adrmode) // switch off inverse if it was turned on
-      u8x8.setInverseFont(0);
 #endif // HAS_LORA
 
     // line 4: update wifi counter + channel display
-    u8x8.setCursor(0, 4);
+    dp_printf(0, 4, 0, 0, "WIFI:%-5d", macs_wifi);
-    u8x8.printf("WIFI:%-5d", macs_wifi);
+    dp_printf(88, 4, 0, 0, "ch:%02d", channel);
-    u8x8.setCursor(11, 4);
-    u8x8.printf("ch:%02d", channel);
 
     // line 5: update RSSI limiter status & free memory display
-    u8x8.setCursor(0, 5);
+    dp_printf(0, 5, 0, 0, !cfg.rssilimit ? "RLIM:off " : "RLIM:%-4d",
-    u8x8.printf(!cfg.rssilimit ? "RLIM:off " : "RLIM:%-4d", cfg.rssilimit);
+              cfg.rssilimit);
-    u8x8.setCursor(10, 5);
+    dp_printf(80, 5, 0, 0, "%4dKB", getFreeRAM() / 1024);
-    u8x8.printf("%4dKB", getFreeRAM() / 1024);
 
     // line 6: update time-of-day or LoRa status display
-    u8x8.setCursor(0, 6);
 #if (TIME_SYNC_INTERVAL)
     // we want a systime display instead LoRa status
     timeState = TimePulseTick ? ' ' : timeSetSymbols[timeSource];
     TimePulseTick = false;
 // display inverse timeState if clock controller is enabled
 #if (defined HAS_DCF77) || (defined HAS_IF482)
-    u8x8.printf("%02d:%02d:%02d", hour(t), minute(t), second(t));
+    dp_printf(0, 6, FONT_SMALL, 0, "%02d:%02d:%02d", hour(t), minute(t),
-    u8x8.setInverseFont(1);
+              second(t));
-    u8x8.printf("%c", timeState);
+    dp_printf(56, 6, FONT_SMALL, 1, "%c", timeState);
-    u8x8.setInverseFont(0);
 #else
-    u8x8.printf("%02d:%02d:%02d%c", hour(t), minute(t), second(t), timeState);
+    dp_printf(0, 6, FONT_SMALL, 0, "%02d:%02d:%02d%c", hour(t), minute(t),
+              second(t), timeState);
 #endif // HAS_DCF77 || HAS_IF482
     if (timeSource != _unsynced)
-      u8x8.printf(" %2d.%3s", day(t), printmonth[month(t)]);
+      dp_printf(72, 6, FONT_SMALL, 0, " %2d.%3s%4s", day(t),
+                printmonth[month(t)], year(t));
 
 #endif // TIME_SYNC_INTERVAL
 
 #if (HAS_LORA)
     // line 7: update LMiC event display
-    u8x8.setCursor(0, 7);
+    dp_printf(0, 7, FONT_SMALL, 0, "%-14s", lmic_event_msg);
-    u8x8.printf("%-14s", lmic_event_msg);
 
     // update LoRa send queue display
     msgWaiting = uxQueueMessagesWaiting(LoraSendQueue);
     if (msgWaiting) {
       sprintf(buff, "%2d", msgWaiting);
-      u8x8.setCursor(14, 7);
+      dp_printf(112, 7, FONT_SMALL, 0, "%-2s",
-      u8x8.printf("%-2s", msgWaiting == SEND_QUEUE_SIZE ? "<>" : buff);
+                msgWaiting == SEND_QUEUE_SIZE ? "<>" : buff);
     } else
-      u8x8.printf("  ");
+      dp_printf(112, 7, FONT_SMALL, 0, "  ");
 #endif // HAS_LORA
 
     break; // page0
 
   case 1:
-
+    dp_printf(0, 4, FONT_STRETCHED, 0, "%02d:%02d:%02d", hour(t), minute(t),
-    // line 4-5: update time-of-day
+              second(t));
-    snprintf(buff, sizeof(buff), "%02d:%02d:%02d", hour(t), minute(t),
-             second(t));
-    u8x8.draw2x2String(0, 4, buff);
-
     break; // page1
 
   case 2:
-    // update counter (lines 0-1)
-    snprintf(
-        buff, sizeof(buff), "PAX:%-4d",
-        (int)
-            macs.size()); // convert 16-bit MAC counter to decimal counter value
-    u8x8.draw2x2String(0, 0,
-                       buff); // display number on unique macs total Wifi + BLE
-
 #if (HAS_GPS)
     if (gps.location.age() < 1500) {
       // line 5: clear "No fix"
       if (wasnofix) {
-        snprintf(buff, sizeof(buff), "      ");
+        dp_printf(16, 5, FONT_STRETCHED, 0, "      ");
-        u8x8.draw2x2String(2, 5, buff);
         wasnofix = false;
       }
       // line 3-4: GPS latitude
-      snprintf(buff, sizeof(buff), "%c%07.4f",
+      dp_printf(0, 3, FONT_STRETCHED, 0, "%c%07.4f",
-               gps.location.rawLat().negative ? 'S' : 'N', gps.location.lat());
+                gps.location.rawLat().negative ? 'S' : 'N', gps.location.lat());
-      u8x8.draw2x2String(0, 3, buff);
 
       // line 6-7: GPS longitude
-      snprintf(buff, sizeof(buff), "%c%07.4f",
+      dp_printf(0, 6, FONT_STRETCHED, 0, "%c%07.4f",
-               gps.location.rawLat().negative ? 'W' : 'E', gps.location.lng());
+                gps.location.rawLat().negative ? 'W' : 'E', gps.location.lng());
-      u8x8.draw2x2String(0, 6, buff);
 
     } else {
-      snprintf(buff, sizeof(buff), "No fix");
+      dp_printf(16, 5, FONT_STRETCHED, 1, "No fix");
-      u8x8.setInverseFont(1);
-      u8x8.draw2x2String(2, 5, buff);
-      u8x8.setInverseFont(0);
       wasnofix = true;
     }
 
 #else
-    snprintf(buff, sizeof(buff), "No GPS");
+    dp_printf(16, 5, FONT_STRETCHED, 1, "No GPS");
-    u8x8.draw2x2String(2, 5, buff);
 #endif
 
     break; // page2
@@ -319,22 +266,18 @@ void draw_page(time_t t, uint8_t page) {
 
 #if (HAS_BME)
     // line 2-3: Temp
-    snprintf(buff, sizeof(buff), "TMP:%-2.1f", bme_status.temperature);
+    dp_printf(0, 2, FONT_STRETCHED, 0, "TMP:%-2.1f", bme_status.temperature);
-    u8x8.draw2x2String(0, 2, buff);
 
     // line 4-5: Hum
-    snprintf(buff, sizeof(buff), "HUM:%-2.1f", bme_status.humidity);
+    dp_printf(0, 4, FONT_STRETCHED, 0, "HUM:%-2.1f", bme_status.humidity);
-    u8x8.draw2x2String(0, 4, buff);
 
 #ifdef HAS_BME680
     // line 6-7: IAQ
-    snprintf(buff, sizeof(buff), "IAQ:%-3.0f", bme_status.iaq);
+    dp_printf(0, 6, FONT_STRETCHED, 0, "IAQ:%-3.0f", bme_status.iaq);
-    u8x8.draw2x2String(0, 6, buff);
 #endif
 
 #else
-    snprintf(buff, sizeof(buff), "No BME");
+    dp_printf(16, 5, FONT_STRETCHED, 1, "No BME");
-    u8x8.draw2x2String(2, 5, buff);
 #endif
 
     break; // page3
@@ -346,4 +289,34 @@ void draw_page(time_t t, uint8_t page) {
 
 } // draw_page
 
+// display print helper function
+
+void dp_printf(int x, int y, int font, int inv, const char *format, ...) {
+  char loc_buf[64];
+  char *temp = loc_buf;
+  va_list arg;
+  va_list copy;
+  va_start(arg, format);
+  va_copy(copy, arg);
+  int len = vsnprintf(temp, sizeof(loc_buf), format, copy);
+  va_end(copy);
+  if (len < 0) {
+    va_end(arg);
+    return;
+  };
+  if (len >= sizeof(loc_buf)) {
+    temp = (char *)malloc(len + 1);
+    if (temp == NULL) {
+      va_end(arg);
+      return;
+    }
+    len = vsnprintf(temp, len + 1, format, arg);
+  }
+  va_end(arg);
+  oledWriteString(0, x, y, temp, font, inv, 1);
+  if (temp != loc_buf) {
+    free(temp);
+  }
+}
+
 #endif // HAS_DISPLAY

src/hal/ecopower.h

@@ -12,7 +12,7 @@
 
 //#define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
+#define HAS_DISPLAY 1
 //#define DISPLAY_FLIP  1 // use if display is rotated
 #define BAT_MEASURE_ADC ADC1_GPIO35_CHANNEL // battery probe GPIO pin -> ADC1_CHANNEL_7
 #define BAT_VOLTAGE_DIVIDER ((82.0+220.0)/82.0) // 82k + 220k 1%
@@ -29,7 +29,7 @@
 // Pins for I2C interface of OLED Display
 #define MY_OLED_SDA SDA
 #define MY_OLED_SCL SCL
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 
 // Settings for on board DS3231 RTC chip
 // note: to use RTC_INT, capacitor 100nF next to red LED must be removed to sharpen interrupt signal slope

src/hal/generic.h

@@ -44,7 +44,7 @@
 #define BOARD_HAS_PSRAM // use if board has external PSRAM
 #define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
+#define HAS_DISPLAY 1
 //#define DISPLAY_FLIP  1 // use if display is rotated
 #define BAT_MEASURE_ADC ADC1_GPIO35_CHANNEL // battery probe GPIO pin -> ADC1_CHANNEL_7
 #define BAT_VOLTAGE_DIVIDER 2 // voltage divider 100k/100k on board

src/hal/heltec.h

@@ -16,7 +16,7 @@
 #define HAS_LORA 1 // comment out if device shall not send data via LoRa
 #define CFG_sx1276_radio 1
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C // OLED-Display on board
+#define HAS_DISPLAY 1 // OLED-Display on board
 #define HAS_LED LED_BUILTIN                           // white LED on board
 #define HAS_BUTTON KEY_BUILTIN                        // button "PROG" on board
 

src/hal/heltecv2.h

@@ -16,7 +16,7 @@
 #define HAS_LORA 1       // comment out if device shall not send data via LoRa
 #define CFG_sx1276_radio 1
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C // OLED-Display on board
+#define HAS_DISPLAY 1 // OLED-Display on board
 #define HAS_LED LED_BUILTIN                           // white LED on board
 #define HAS_BUTTON KEY_BUILTIN                        // button "PROG" on board
 

src/hal/lolin32litelora.h

@@ -13,7 +13,7 @@
 // disable brownout detection (avoid unexpected reset on some boards)
 #define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C // OLED-Display on board
+#define HAS_DISPLAY 1 // OLED-Display on board
 //#define DISPLAY_FLIP  1 // uncomment this for rotated display
 #define HAS_LED       22  // ESP32 GPIO12 (pin22) On Board LED
 #define LED_ACTIVE_LOW 1  // Onboard LED is active when pin is LOW
@@ -37,7 +37,7 @@
 // Pins for I2C interface of OLED Display
 #define MY_OLED_SDA (14)
 #define MY_OLED_SCL (12)
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 
 // I2C config for Microchip 24AA02E64 DEVEUI unique address
 #define MCP_24AA02E64_I2C_ADDRESS 0x50 // I2C address for the 24AA02E64 

src/hal/lolin32lora.h

@@ -13,7 +13,7 @@
 // disable brownout detection (avoid unexpected reset on some boards)
 #define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C // OLED-Display on board
+#define HAS_DISPLAY 1 // OLED-Display on board
 //#define DISPLAY_FLIP  1 // uncomment this for rotated display
 #define HAS_LED NOT_A_PIN // Led os on same pin as Lora SS pin, to avoid problems, we don't use it
 #define LED_ACTIVE_LOW 1  // Onboard LED is active when pin is LOW
@@ -39,7 +39,7 @@
 // Pins for I2C interface of OLED Display
 #define MY_OLED_SDA (21)
 #define MY_OLED_SCL (22)
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 
 // I2C config for Microchip 24AA02E64 DEVEUI unique address
 #define MCP_24AA02E64_I2C_ADDRESS 0x50 // I2C address for the 24AA02E64 

src/hal/octopus32.h

@@ -41,10 +41,10 @@
 #define LORA_IO2  LMIC_UNUSED_PIN
 
 // Pins for I2C interface of OLED Display
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C // U8X8_SSD1306_128X32_UNIVISION_SW_I2C //
+#define HAS_DISPLAY 1
 //#define DISPLAY_FLIP  1 // uncomment this for rotated display 
 #define MY_OLED_SDA (23)
 #define MY_OLED_SCL (22)
-#define MY_OLED_RST U8X8_PIN_NONE 
+#define MY_OLED_RST NOT_A_PIN 
 
 #endif

src/hal/ttgobeam.h

@@ -33,10 +33,10 @@
 #define BME680_ADDR BME680_I2C_ADDR_PRIMARY // !! connect SDIO of BME680 to GND !!
 
 // display (if connected)
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
+#define HAS_DISPLAY 1
 #define MY_OLED_SDA SDA
 #define MY_OLED_SCL SCL
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 //#define DISPLAY_FLIP  1 // use if display is rotated
 
 // user defined sensors (if connected)

src/hal/ttgobeam10.h

@@ -20,10 +20,10 @@ User, long press -> send LORA message
 Reset -> reset device
 */
 
-//#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
+#define HAS_DISPLAY 1
 #define MY_OLED_SDA SDA
 #define MY_OLED_SCL SCL
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 //#define DISPLAY_FLIP  1 // use if display is rotated
 
 #define HAS_LORA 1       // comment out if device shall not send data via LoRa

src/hal/ttgofox.h

@@ -10,7 +10,7 @@
 #define HAS_LORA 1       // comment out if device shall not send data via LoRa
 #define CFG_sx1276_radio 1 // HPD13A LoRa SoC
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
+#define HAS_DISPLAY 1
 #define HAS_LED NOT_A_PIN // green on board LED is useless, is GPIO25, which switches power for Lora+Display
 
 #define EXT_POWER_SW GPIO_NUM_25 // switches power for LoRa chip
@@ -23,7 +23,7 @@
 // Pins for I2C interface of OLED Display
 #define MY_OLED_SDA (21)
 #define MY_OLED_SCL (22)
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 
 // Settings for on board DS3231 RTC chip
 #define HAS_RTC MY_OLED_SDA, MY_OLED_SCL // SDA, SCL

src/hal/ttgov1.h

@@ -12,7 +12,7 @@
 #define HAS_LORA 1       // comment out if device shall not send data via LoRa
 #define CFG_sx1276_radio 1
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C // OLED-Display on board
+#define HAS_DISPLAY 1 // OLED-Display on board
 //#define DISPLAY_FLIP  1 // uncomment this for rotated display
 #define HAS_LED LED_BUILTIN
 #define LED_ACTIVE_LOW 1  // Onboard LED is active when pin is LOW

src/hal/ttgov2.h

@@ -12,7 +12,7 @@
 #define HAS_LORA 1       // comment out if device shall not send data via LoRa
 #define CFG_sx1276_radio 1 // HPD13A LoRa SoC
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
+#define HAS_DISPLAY 1
 //#define DISPLAY_FLIP  1 // uncomment this for rotated display
 #define HAS_LED NOT_A_PIN // on-board LED is wired to SCL (used by display) therefore totally useless
 
@@ -22,7 +22,7 @@
 // Pins for I2C interface of OLED Display
 #define MY_OLED_SDA (21)
 #define MY_OLED_SCL (22)
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 
 // Pins for LORA chip SPI interface come from board file, we need some
 // additional definitions for LMIC

src/hal/ttgov21new.h

@@ -20,7 +20,7 @@
 //#define HAS_BME 1 // Enable BME sensors in general
 //#define HAS_BME280 GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
+#define HAS_DISPLAY 1
 #define HAS_LED (25) // green on board LED
 #define BAT_MEASURE_ADC ADC1_GPIO35_CHANNEL // battery probe GPIO pin -> ADC1_CHANNEL_7
 #define BAT_VOLTAGE_DIVIDER 2 // voltage divider 100k/100k on board
@@ -28,7 +28,7 @@
 // Pins for I2C interface of OLED Display
 #define MY_OLED_SDA (21)
 #define MY_OLED_SCL (22)
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 
 // Pins for LORA chip SPI interface, reset line and interrupt lines
 #define LORA_SCK  (5) 

src/hal/ttgov21old.h

@@ -19,7 +19,7 @@
 #define HAS_LED NOT_A_PIN // no usable LED on board
 #define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
+#define HAS_DISPLAY 1
 //#define DISPLAY_FLIP  1 // rotated display
 //#define BAT_MEASURE_ADC ADC1_GPIO35_CHANNEL // battery probe GPIO pin -> ADC1_CHANNEL_7
 //#define BAT_VOLTAGE_DIVIDER 2 // voltage divider 100k/100k on board
@@ -27,7 +27,7 @@
 // Pins for I2C interface of OLED Display
 #define MY_OLED_SDA (21)
 #define MY_OLED_SCL (22)
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 
 // Pins for LORA chip SPI interface, reset line and interrupt lines
 #define LORA_SCK  (5) 

src/hal/wemos32oled.h

@@ -9,10 +9,10 @@
 
 #define HAS_LED NOT_A_PIN // no LED
 
-#define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
+#define HAS_DISPLAY 1
 #define MY_OLED_SDA (5)
 #define MY_OLED_SCL (4)
-#define MY_OLED_RST U8X8_PIN_NONE
+#define MY_OLED_RST NOT_A_PIN
 #define DISPLAY_FLIP  1 // use if display is rotated
 
 #define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature

src/ota.cpp

@@ -49,24 +49,24 @@ void start_ota_update() {
   switch_LED(LED_ON);
 
 #ifdef HAS_DISPLAY
-  u8x8.begin();
+
-  u8x8.setFont(u8x8_font_chroma48medium8_r);
+// init display
-  u8x8.clear();
+#ifndef DISPLAY_FLIP
-#ifdef DISPLAY_FLIP
+  int rc = oledInit(OLED_128x64, ANGLE_0, false, -1, -1, 100000L);
-  u8x8.setFlipMode(1);
+#else
-#endif
+  int rc = oledInit(OLED_128x64, ANGLE_FLIPY, false, -1, -1, 100000L);
-  u8x8.setInverseFont(1);
-  u8x8.print("SOFTWARE UPDATE \n");
-  u8x8.setInverseFont(0);
-  u8x8.print("WiFi connect  ..\n");
-  u8x8.print("Has Update?   ..\n");
-  u8x8.print("Fetching      ..\n");
-  u8x8.print("Downloading   ..\n");
-  u8x8.print("Rebooting     ..");
 #endif
 
+  oledFill(0, 1);
+  dp_printf(0, 0, 0, 1, "SOFTWARE UPDATE");
+  dp_printf(0, 1, 0, 0, "WiFi connect  ..");
+  dp_printf(0, 2, 0, 0, "Has Update?   ..");
+  dp_printf(0, 3, 0, 0, "Fetching      ..");
+  dp_printf(0, 4, 0, 0, "Downloading   ..");
+  dp_printf(0, 5, 0, 0, "Rebooting     ..");
+
   ESP_LOGI(TAG, "Starting Wifi OTA update");
-  display(1, "**", WIFI_SSID);
+  ota_display(1, "**", WIFI_SSID);
 
   WiFi.mode(WIFI_STA);
   WiFi.begin(WIFI_SSID, WIFI_PASS);
@@ -81,7 +81,7 @@ void start_ota_update() {
     if (WiFi.status() == WL_CONNECTED) {
       // we now have wifi connection and try to do an OTA over wifi update
       ESP_LOGI(TAG, "Connected to %s", WIFI_SSID);
-      display(1, "OK", "WiFi connected");
+      ota_display(1, "OK", "WiFi connected");
       // do a number of tries to update firmware limited by OTA_MAX_TRY
       uint8_t j = OTA_MAX_TRY;
       while ((j--) && (ret > 0)) {
@@ -97,13 +97,13 @@ void start_ota_update() {
 
   // wifi did not connect
   ESP_LOGI(TAG, "Could not connect to %s", WIFI_SSID);
-  display(1, " E", "no WiFi connect");
+  ota_display(1, " E", "no WiFi connect");
   delay(5000);
 
 end:
   switch_LED(LED_OFF);
   ESP_LOGI(TAG, "Rebooting to %s firmware", (ret == 0) ? "new" : "current");
-  display(5, "**", ""); // mark line rebooting
+  ota_display(5, "**", ""); // mark line rebooting
   delay(5000);
   ESP.restart();
 
@@ -119,7 +119,7 @@ int do_ota_update() {
 
   // Fetch the latest firmware version
   ESP_LOGI(TAG, "Checking latest firmware version on server");
-  display(2, "**", "checking version");
+  ota_display(2, "**", "checking version");
 
   if (WiFi.status() != WL_CONNECTED)
     return 1;
@@ -128,23 +128,23 @@ int do_ota_update() {
 
   if (latest.length() == 0) {
     ESP_LOGI(TAG, "Could not fetch info on latest firmware");
-    display(2, " E", "file not found");
+    ota_display(2, " E", "file not found");
     return -1;
   } else if (version_compare(latest, cfg.version) <= 0) {
     ESP_LOGI(TAG, "Current firmware is up to date");
-    display(2, "NO", "no update found");
+    ota_display(2, "NO", "no update found");
     return -1;
   }
   ESP_LOGI(TAG, "New firmware version v%s available", latest.c_str());
-  display(2, "OK", latest.c_str());
+  ota_display(2, "OK", latest.c_str());
 
-  display(3, "**", "");
+  ota_display(3, "**", "");
   if (WiFi.status() != WL_CONNECTED)
     return 1;
   String firmwarePath = bintray.getBinaryPath(latest);
   if (!firmwarePath.endsWith(".bin")) {
     ESP_LOGI(TAG, "Unsupported binary format");
-    display(3, " E", "file type error");
+    ota_display(3, " E", "file type error");
     return -1;
   }
 
@@ -158,7 +158,7 @@ int do_ota_update() {
 
   if (!client.connect(currentHost.c_str(), port)) {
     ESP_LOGI(TAG, "Cannot connect to %s", currentHost.c_str());
-    display(3, " E", "connection lost");
+    ota_display(3, " E", "connection lost");
     goto abort;
   }
 
@@ -169,7 +169,7 @@ int do_ota_update() {
       if (!client.connect(currentHost.c_str(), port)) {
         ESP_LOGI(TAG, "Redirect detected, but cannot connect to %s",
                  currentHost.c_str());
-        display(3, " E", "server error");
+        ota_display(3, " E", "server error");
         goto abort;
       }
     }
@@ -185,7 +185,7 @@ int do_ota_update() {
     while (client.available() == 0) {
       if ((millis() - timeout) > (RESPONSE_TIMEOUT_MS)) {
         ESP_LOGI(TAG, "Client timeout");
-        display(3, " E", "client timeout");
+        ota_display(3, " E", "client timeout");
         goto abort;
       }
     }
@@ -243,12 +243,12 @@ int do_ota_update() {
     } // while (client.available())
   }   // while (redirect)
 
-  display(3, "OK", ""); // line download
+  ota_display(3, "OK", ""); // line download
 
   // check whether we have everything for OTA update
   if (!(contentLength && isValidContentType)) {
     ESP_LOGI(TAG, "Invalid OTA server response");
-    display(4, " E", "response error");
+    ota_display(4, " E", "response error");
     goto retry;
   }
 
@@ -262,7 +262,7 @@ int do_ota_update() {
   if (!Update.begin(contentLength)) {
 #endif
     ESP_LOGI(TAG, "Not enough space to start OTA update");
-    display(4, " E", "disk full");
+    ota_display(4, " E", "disk full");
     goto abort;
   }
 
@@ -271,13 +271,13 @@ int do_ota_update() {
   Update.onProgress(&show_progress);
 #endif
 
-  display(4, "**", "writing...");
+  ota_display(4, "**", "writing...");
   written = Update.writeStream(client); // this is a blocking call
 
   if (written == contentLength) {
     ESP_LOGI(TAG, "Written %u bytes successfully", written);
     snprintf(buf, 17, "%ukB Done!", (uint16_t)(written / 1024));
-    display(4, "OK", buf);
+    ota_display(4, "OK", buf);
   } else {
     ESP_LOGI(TAG, "Written only %u of %u bytes, OTA update attempt cancelled",
              written, contentLength);
@@ -288,7 +288,7 @@ int do_ota_update() {
   } else {
     ESP_LOGI(TAG, "An error occurred. Error#: %d", Update.getError());
     snprintf(buf, 17, "Error#: %d", Update.getError());
-    display(4, " E", buf);
+    ota_display(4, " E", buf);
     goto retry;
   }
 
@@ -307,27 +307,25 @@ retry:
 
 } // do_ota_update
 
-void display(const uint8_t row, const std::string status,
+void ota_display(const uint8_t row, const std::string status,
-             const std::string msg) {
+                 const std::string msg) {
 #ifdef HAS_DISPLAY
-  u8x8.setCursor(14, row);
+  dp_printf(112, row, 0, 0, status.substr(0, 2).c_str());
-  u8x8.print((status.substr(0, 2)).c_str());
   if (!msg.empty()) {
-    u8x8.clearLine(7);
+    dp_printf(0, 7, 0, 0, "                ");
-    u8x8.setCursor(0, 7);
+    dp_printf(0, 7, 0, 0, msg.substr(0, 16).c_str());
-    u8x8.print(msg.substr(0, 16).c_str());
   }
 #endif
 }
 
-#ifdef HAS_DISPLAY
 // callback function to show download progress while streaming data
 void show_progress(unsigned long current, unsigned long size) {
+#ifdef HAS_DISPLAY
   char buf[17];
   snprintf(buf, 17, "%-9lu (%3lu%%)", current, current * 100 / size);
-  display(4, "**", buf);
+  ota_display(4, "**", buf);
-}
 #endif
+}
 
 // helper function to convert strings into lower case
 bool comp(char s1, char s2) { return tolower(s1) < tolower(s2); }

src/paxcounter.conf

@@ -76,7 +76,7 @@
 #define TIME_SYNC_INTERVAL_RETRY        10      // retry time sync after lost sync each .. minutes [default = 10], 0 means off
 #define TIME_SYNC_COMPILEDATE           0       // set to 1 to use compile date to initialize RTC after power outage [default = 0]
 #define TIME_SYNC_LORAWAN               0       // set to 1 to use LORA network as time source, 0 means off [default = 0]
-#define TIME_SYNC_LORASERVER            0       // set to 1 to use LORA timeserver as time source, 0 means off [default = 0]
+#define TIME_SYNC_LORASERVER            1       // set to 1 to use LORA timeserver as time source, 0 means off [default = 0]
 
 // settings for syncing time with timeserver applications
 #define TIME_SYNC_SAMPLES               1       // number of time requests for averaging