#ifdef HAS_DISPLAY /* Display-Mask (128 x 64 pixel): | 111111 |0123456789012345 ------------------ 0|PAX:aabbccddee 1|PAX:aabbccddee 2|B:a.bcV Sats:ab 3|BLTH:abcde SF:ab 4|WIFI:abcde ch:ab 5|RLIM:abcd abcdKB 6|xxxxxxxxxxxxxxxx 6|20:27:00* 27.Feb 7|yyyyyyyyyyyyyyab line 6: x = Text for LORA status OR time/date line 7: y = Text for LMIC status; ab = payload queue */ // Basic Config #include "globals.h" #include // needed for reading ESP32 chip attributes HAS_DISPLAY u8x8(MY_OLED_RST, MY_OLED_SCL, MY_OLED_SDA); // helper string for converting LoRa spread factor values #if defined(CFG_eu868) const char lora_datarate[] = {"1211100908077BFSNA"}; #elif defined(CFG_us915) const char lora_datarate[] = {"100908078CNA121110090807"}; #elif defined(CFG_as923) const char lora_datarate[] = {"1211100908077BFSNA"}; #elif defined(CFG_au921) const char lora_datarate[] = {"1211100908078CNA1211109C8C7C"}; #elif defined(CFG_in866) const char lora_datarate[] = {"121110090807FSNA"}; #endif // time display symbols #if defined HAS_GPS || defined HAS_RTC const char timeNoPulseSymbol = '?'; #if defined HAS_IF482 const char timePulseSymbol = '+'; #elif defined HAS_DCF77 const char timePulseSymbol = '*'; #endif #endif // helper arry for converting month values to text const char *printmonth[] = {"xxx", "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; uint8_t volatile DisplayState = 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()) { // 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); u8x8.clear(); #ifdef DISPLAY_FLIP u8x8.setFlipMode(1); #endif // Display chip information #ifdef VERBOSE esp_chip_info_t chip_info; esp_chip_info(&chip_info); u8x8.printf("ESP32 %d cores\nWiFi%s%s\n", chip_info.cores, (chip_info.features & CHIP_FEATURE_BT) ? "/BT" : "", (chip_info.features & CHIP_FEATURE_BLE) ? "/BLE" : ""); u8x8.printf("ESP Rev.%d\n", chip_info.revision); u8x8.printf("%dMB %s Flash\n", 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); #ifdef HAS_LORA u8x8.println("DEVEUI:"); os_getDevEui((u1_t *)buf); DisplayKey(buf, 8, true); delay(3000); #endif // HAS_LORA u8x8.clear(); u8x8.setPowerSave(!cfg.screenon); // set display off if disabled u8x8.draw2x2String(0, 0, "PAX:0"); #ifdef BLECOUNTER u8x8.setCursor(0, 3); u8x8.printf("BLTH:0"); #endif u8x8.setCursor(0, 4); u8x8.printf("WIFI:0"); u8x8.setCursor(0, 5); u8x8.printf(!cfg.rssilimit ? "RLIM:off " : "RLIM:%d", cfg.rssilimit); I2C_MUTEX_UNLOCK(); // release i2c bus access } } // init_display void refreshtheDisplay() { uint8_t msgWaiting; char timePulse, timeState; char buff[16]; // 16 chars line buffer time_t t; // block i2c bus access if (I2C_MUTEX_LOCK()) { // set display on/off according to current device configuration if (DisplayState != cfg.screenon) { DisplayState = cfg.screenon; u8x8.setPowerSave(!cfg.screenon); } // if display is switched off we don't refresh it to relax cpu if (!DisplayState) return; // 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 // update Battery status (line 2) #ifdef HAS_BATTERY_PROBE u8x8.setCursor(0, 2); u8x8.printf("B:%.2fV", batt_voltage / 1000.0); #endif // update GPS status (line 2) #ifdef HAS_GPS // have we ever got valid gps data? if (gps.passedChecksum() > 0) { u8x8.setCursor(9, 2); if (!gps.location.isValid()) // if no fix then display Sats value inverse { u8x8.setInverseFont(1); u8x8.printf("Sats:%.2d", gps.satellites.value()); u8x8.setInverseFont(0); } else u8x8.printf("Sats:%.2d", gps.satellites.value()); } #endif // update bluetooth counter + LoRa SF (line 3) #ifdef BLECOUNTER u8x8.setCursor(0, 3); if (cfg.blescan) u8x8.printf("BLTH:%-5d", macs_ble); else u8x8.printf("%s", "BLTH:off"); #endif #ifdef HAS_LORA u8x8.setCursor(11, 3); u8x8.printf("SF:"); if (cfg.adrmode) // if ADR=on then display SF value inverse u8x8.setInverseFont(1); u8x8.printf("%c%c", lora_datarate[LMIC.datarate * 2], lora_datarate[LMIC.datarate * 2 + 1]); if (cfg.adrmode) // switch off inverse if it was turned on u8x8.setInverseFont(0); #endif // HAS_LORA // update wifi counter + channel display (line 4) u8x8.setCursor(0, 4); u8x8.printf("WIFI:%-5d", macs_wifi); u8x8.setCursor(11, 4); u8x8.printf("ch:%02d", channel); // update RSSI limiter status & free memory display (line 5) u8x8.setCursor(0, 5); u8x8.printf(!cfg.rssilimit ? "RLIM:off " : "RLIM:%-4d", cfg.rssilimit); u8x8.setCursor(10, 5); u8x8.printf("%4dKB", getFreeRAM() / 1024); #ifdef HAS_LORA u8x8.setCursor(0, 6); #if (!defined HAS_DCF77) && (!defined HAS_IF482) // update LoRa status display (line 6) u8x8.printf("%-16s", display_line6); #else // we want a systime display instead LoRa status t = myTZ.toLocal(now()); timePulse = (timeStatus() == timeSet) ? timePulseSymbol : timeNoPulseSymbol; timeState = TimePulseTick ? timeSync : ' '; TimePulseTick = false; u8x8.printf("%02d:%02d%c%02d%c %2d.%3s", hour(t), minute(t), TimeIsSynced ? ':' : '.', second(t), timeState, day(t), printmonth[month(t)]); #endif // update LMiC event display (line 7) u8x8.setCursor(0, 7); u8x8.printf("%-14s", display_line7); // update LoRa send queue display (line 7) msgWaiting = uxQueueMessagesWaiting(LoraSendQueue); if (msgWaiting) { sprintf(buff, "%2d", msgWaiting); u8x8.setCursor(14, 7); u8x8.printf("%-2s", msgWaiting == SEND_QUEUE_SIZE ? "<>" : buff); } else u8x8.printf(" "); #endif // HAS_LORA I2C_MUTEX_UNLOCK(); // release i2c bus access } } // refreshDisplay() #endif // HAS_DISPLAY