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OpenMQTT-Gateway/main/ZdisplaySSD1306.ino
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/*
OpenMQTTGateway Addon - ESP8266 or Arduino program for home automation
Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal and a MQTT broker
Send and receiving command by MQTT
Supported boards with displays
HELTEC ESP32 LORA - SSD1306 / Onboard 0.96-inch 128*64 dot matrix OLED display
LILYGO® LoRa32 V2.1_1.6.1 433 Mhz / https://www.lilygo.cc/products/lora3?variant=42476923879605
Copyright: (c)Florian ROBERT
Contributors:
- 1technophile
- NorthernMan54
This file is part of OpenMQTTGateway.
OpenMQTTGateway is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenMQTTGateway is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined(ZdisplaySSD1306)
# include <ArduinoJson.h>
# include "ArduinoLog.h"
# include "User_config.h"
# include "config_SSD1306.h"
SemaphoreHandle_t semaphoreOLEDOperation;
QueueHandle_t displayQueue;
boolean logToLCDDisplay = LOG_TO_LCD;
boolean jsonDisplay = JSON_TO_LCD;
boolean displayMetric = DISPLAY_METRIC;
boolean displayFlip = DISPLAY_FLIP;
/*
Toogle log display
*/
void logToLCD(bool display) {
logToLCDDisplay = display;
display ? Log.begin(LOG_LEVEL_LCD, &Oled) : Log.begin(LOG_LEVEL, &Serial); // Log on LCD following LOG_LEVEL_LCD
}
/*
module setup, for use in Arduino setup
*/
void setupSSD1306() {
Log.trace(F("Setup SSD1306 Display" CR));
Log.trace(F("ZdisplaySSD1306 command topic: %s" CR), subjectMQTTtoSSD1306set);
Log.trace(F("ZdisplaySSD1306 log-lcd: %T" CR), logToLCDDisplay);
Log.trace(F("ZdisplaySSD1306 json-lcd: %T" CR), jsonDisplay);
Log.trace(F("ZdisplaySSD1306 DISPLAY_PAGE_INTERVAL: %d" CR), DISPLAY_PAGE_INTERVAL);
Log.trace(F("ZdisplaySSD1306 DISPLAY_IDLE_LOGO: %T" CR), DISPLAY_IDLE_LOGO);
Log.trace(F("ZdisplaySSD1306 DISPLAY_METRIC: %T" CR), displayMetric);
Log.trace(F("ZdisplaySSD1306 DISPLAY_FLIP: %T" CR), displayFlip);
Oled.begin();
Log.notice(F("Setup SSD1306 Display end" CR));
# if LOG_TO_LCD
Log.begin(LOG_LEVEL_LCD, &Oled); // Log on LCD following LOG_LEVEL_LCD
jsonDisplay = false;
# else
jsonDisplay = true;
# endif
}
boolean logoDisplayed = false;
unsigned long nextDisplayPage = uptime() + DISPLAY_PAGE_INTERVAL;
/*
module loop, for use in Arduino loop
*/
void loopSSD1306() {
/*
Function to check if json messages are in the queue and send them for display
long enough since the last message and display not being used and a queue message waiting
*/
if (jsonDisplay) {
if (uptime() >= nextDisplayPage && uxSemaphoreGetCount(semaphoreOLEDOperation) && uxQueueMessagesWaiting(displayQueue)) {
displayQueueMessage* message = nullptr;
xQueueReceive(displayQueue, &message, portMAX_DELAY);
if (!Oled.displayPage(message)) {
Log.warning(F("[ssd1306] displayPage failed: %s" CR), message->title);
}
free(message);
nextDisplayPage = uptime() + DISPLAY_PAGE_INTERVAL;
}
}
/*
Display logo if it has been more than DISPLAY_PAGE_INTERVAL
*/
# if DISPLAY_IDLE_LOGO
if (uptime() > nextDisplayPage + 1 && !logoDisplayed) {
Oled.fillScreen(WHITE);
Oled.drawLogo((int)OLED_WIDTH * 0.24, (int)(OLED_WIDTH / 2) - OLED_WIDTH * 0.2, (int)(OLED_HEIGHT / 2) + OLED_HEIGHT * 0.2, true, true, true, true, true, true); // Name
logoDisplayed = true;
} else {
logoDisplayed = false;
}
# endif
}
/*
Handler for mqtt commands sent to the module
- log-lcd: boolean
Enable / Disable display of log messages on display
*/
void MQTTtoSSD1306(char* topicOri, JsonObject& SSD1306data) { // json object decoding
bool success = false;
if (cmpToMainTopic(topicOri, subjectMQTTtoSSD1306set)) {
Log.trace(F("MQTTtoSSD1306 json set" CR));
// Log display set between SSD1306 lcd (true) and serial monitor (false)
if (SSD1306data.containsKey("log-lcd")) {
logToLCDDisplay = SSD1306data["log-lcd"];
Log.notice(F("Set lcd log: %T" CR), logToLCDDisplay);
logToLCD(logToLCDDisplay);
if (logToLCDDisplay) {
jsonDisplay = false;
}
success = true;
} else if (SSD1306data.containsKey("json-lcd")) {
jsonDisplay = SSD1306data["json-lcd"];
if (jsonDisplay) {
logToLCDDisplay = false;
logToLCD(logToLCDDisplay);
}
Log.notice(F("Set json-lcd: %T" CR), jsonDisplay);
success = true;
} else if (SSD1306data.containsKey("display-metric")) {
displayMetric = SSD1306data["display-metric"];
Log.notice(F("Set display-metric: %T" CR), displayMetric);
success = true;
} else if (SSD1306data.containsKey("display-flip")) {
displayFlip = SSD1306data["display-flip"];
Log.notice(F("Set display-flip: %T" CR), displayFlip);
if (displayFlip) {
Oled.display->flipScreenVertically();
} else {
Oled.display->resetOrientation();
}
success = true;
}
if (success) {
pub(subjectSSD1306toMQTTset, SSD1306data);
} else {
pub(subjectSSD1306toMQTTset, "{\"Status\": \"Error\"}"); // Fail feedback
Log.error(F("[ SSD1306 ] MQTTtoSSD1306 Fail json" CR), SSD1306data);
}
}
}
/*
Workaround for c not having a string based switch/case function
*/
constexpr unsigned int hash(const char* s, int off = 0) { // workaround for switching on a string https://stackoverflow.com/a/46711735/18643696
return !s[off] ? 5381 : (hash(s, off + 1) * 33) ^ s[off];
}
/*
Parse json message from module into a format for displaying on screen, and queue for display
*/
void ssd1306PubPrint(const char* topicori, JsonObject& data) {
if (jsonDisplay) {
displayQueueMessage* message = (displayQueueMessage*)malloc(sizeof(displayQueueMessage));
if (message != NULL) {
char* topic = strdup(topicori);
strlcpy(message->title, strtok(topic, "/"), OLED_TEXT_WIDTH);
free(topic);
switch (hash(message->title)) {
case hash("SYStoMQTT"): {
// {"uptime":456356,"version":"lilygo-rtl_433-test-A-v1.1.1-25-g574177d[lily-cloud]","freemem":125488,"mqttport":"1883","mqttsecure":false,"freestack":3752,"rssi":-36,"SSID":"The_Beach","BSSID":"64:A5:C3:69:C3:38","ip":"192.168.1.239","mac":"4C:75:25:A8:D5:D8","actRec":3,"mhz":433.92,"RTLRssiThresh":-98,"RTLRssi":-108,"RTLAVGRssi":-107,"RTLCnt":121707,"RTLOOKThresh":90,"modules":["LILYGO_OLED","CLOUD","rtl_433"]}
// Line 1
strlcpy(message->line1, data["version"], OLED_TEXT_WIDTH);
// Line 2
String uptime = data["uptime"];
String line2 = "uptime: " + uptime;
line2.toCharArray(message->line2, OLED_TEXT_WIDTH);
// Line 3
String freemem = data["freemem"];
String line3 = "freemem: " + freemem;
line3.toCharArray(message->line3, OLED_TEXT_WIDTH);
// Line 4
String ip = data["ip"];
String line4 = "ip: " + ip;
line4.toCharArray(message->line4, OLED_TEXT_WIDTH);
// Queue completed message
if (xQueueSend(displayQueue, (void*)&message, 0) != pdTRUE) {
Log.error(F("[ SSD1306 ] ERROR: displayQueue full, discarding signal %s" CR), message->title);
} else {
// Log.notice(F("Queued %s" CR), message->title);
}
break;
}
# ifdef ZgatewayRTL_433
case hash("RTL_433toMQTT"): {
// {"model":"Acurite-Tower","id":2043,"channel":"B","battery_ok":1,"temperature_C":5.3,"humidity":81,"mic":"CHECKSUM","protocol":"Acurite 592TXR Temp/Humidity, 5n1 Weather Station, 6045 Lightning, 3N1, Atlas","rssi":-81,"duration":121060}
// Line 1
strlcpy(message->line1, data["model"], OLED_TEXT_WIDTH);
// Line 2
String id = data["id"];
String channel = data["channel"];
String line2 = "id: " + id + " channel: " + channel;
line2.toCharArray(message->line2, OLED_TEXT_WIDTH);
// Line 3
String line3 = "";
if (data.containsKey("temperature_C")) {
float temperature_C = data["temperature_C"];
char temp[5];
if (displayMetric) {
dtostrf(temperature_C, 3, 1, temp);
line3 = "temp: " + (String)temp + "°C ";
} else {
dtostrf(convertTemp_CtoF(temperature_C), 3, 1, temp);
line3 = "temp: " + (String)temp + "°F ";
}
}
float humidity = data["humidity"];
if (data.containsKey("humidity") && humidity <= 100 && humidity >= 0) {
char hum[5];
dtostrf(humidity, 3, 1, hum);
line3 += "hum: " + (String)hum + "% ";
}
if (data.containsKey("wind_avg_km_h")) {
float wind_avg_km_h = data["wind_avg_km_h"];
char wind[6];
if (displayMetric) {
dtostrf(wind_avg_km_h, 3, 1, wind);
line3 += "wind: " + (String)wind + "km/h ";
} else {
dtostrf(convert_kmph2mph(wind_avg_km_h), 3, 1, wind);
line3 += "wind: " + (String)wind + "mp/h ";
}
}
line3.toCharArray(message->line3, OLED_TEXT_WIDTH);
// Line 4
String rssi = data["rssi"];
String battery_ok = data["battery_ok"];
String line4 = "batt: " + battery_ok + " rssi: " + rssi;
line4.toCharArray(message->line4, OLED_TEXT_WIDTH);
// Queue completed message
if (xQueueSend(displayQueue, (void*)&message, 0) != pdTRUE) {
Log.error(F("[ SSD1306 ] displayQueue full, discarding signal %s" CR), message->title);
} else {
// Log.notice(F("Queued %s" CR), message->title);
}
break;
}
# endif
# ifdef ZsensorBME280
case hash("CLIMAtoMQTT"): {
// {"tempc":17.06,"tempf":62.708,"hum":50.0752,"pa":98876.14,"altim":205.8725,"altift":675.4348}
// Line 1
strlcpy(message->line1, "bme280", OLED_TEXT_WIDTH);
// Line 2
String line2 = "";
if (data.containsKey("tempc")) {
char temp[5];
float temperature_C = data["tempc"];
if (displayMetric) {
dtostrf(temperature_C, 3, 1, temp);
line2 = "temp: " + (String)temp + "°C ";
} else {
dtostrf(convertTemp_CtoF(temperature_C), 3, 1, temp);
line2 = "temp: " + (String)temp + "°F ";
}
}
line2.toCharArray(message->line2, OLED_TEXT_WIDTH);
// Line 3
String line3 = "";
float humidity = data["hum"];
if (data.containsKey("hum") && humidity <= 100 && humidity >= 0) {
char hum[5];
dtostrf(humidity, 3, 1, hum);
line3 += "hum: " + (String)hum + "% ";
}
line3.toCharArray(message->line3, OLED_TEXT_WIDTH);
// Line 4
float pa = (int)data["pa"] / 100;
char pressure[6];
String line4 = "";
if (displayMetric) {
dtostrf(pa, 3, 1, pressure);
line4 = "pressure: " + (String)pressure + " hPa";
} else {
dtostrf(convert_hpa2inhg(pa), 3, 1, pressure);
line4 = "pressure: " + (String)pressure + " inHg";
}
line4.toCharArray(message->line4, OLED_TEXT_WIDTH);
// Queue completed message
if (xQueueSend(displayQueue, (void*)&message, 0) != pdTRUE) {
Log.error(F("[ SSD1306 ] displayQueue full, discarding signal %s" CR), message->title);
free(message);
} else {
// Log.notice(F("Queued %s" CR), message->title);
}
break;
}
# endif
# ifdef ZgatewayBT
case hash("BTtoMQTT"): {
// {"id":"49:22:07:07:1C:F6","mac_type":0,"name":"sps","rssi":-87,"brand":"Inkbird","model":"TH Sensor","model_id":"IBS-TH1","cidc":false,"tempc":0.8,"tempf":33.44,"hum":29.61,"batt":100}
// Line 1
strlcpy(message->line1, data["brand"], OLED_TEXT_WIDTH);
// Line 2
strlcpy(message->line2, data["model_id"], OLED_TEXT_WIDTH);
// Line 3
String line3 = "";
if (data.containsKey("tempc")) {
float temperature_C = data["tempc"];
char temp[5];
if (displayMetric) {
dtostrf(temperature_C, 3, 1, temp);
line3 = "temp: " + (String)temp + "°C ";
} else {
dtostrf(convertTemp_CtoF(temperature_C), 3, 1, temp);
line3 = "temp: " + (String)temp + "°F ";
}
}
float humidity = data["hum"];
if (data.containsKey("hum") && humidity <= 100 && humidity >= 0) {
char hum[5];
dtostrf(humidity, 3, 1, hum);
line3 += "hum: " + (String)hum + "% ";
}
line3.toCharArray(message->line3, OLED_TEXT_WIDTH);
// Line 4
String rssi = data["rssi"];
String battery_ok = data["batt"];
String line4;
if (data.containsKey("batt"))
line4 += "batt: " + battery_ok + " ";
line4 += "rssi: " + rssi;
line4.toCharArray(message->line4, OLED_TEXT_WIDTH);
// Queue completed message
if (xQueueSend(displayQueue, (void*)&message, 0) != pdTRUE) {
Log.error(F("[ SSD1306 ] displayQueue full, discarding signal %s" CR), message->title);
free(message);
} else {
// Log.notice(F("Queued %s" CR), message->title);
}
break;
}
# endif
default:
Log.error(F("[ SSD1306 ] unhandled topic %s" CR), message->title);
}
} else {
Log.error(F("[ SSD1306 ] insufficent memory " CR));
}
}
}
// Simple print methonds
/*
Display three lines of text on display, scroll if needed
*/
void ssd1306Print(char* line1, char* line2, char* line3) {
Oled.println(line1);
Oled.println(line2);
Oled.println(line3);
delay(2000);
}
/*
Display two lines of text on display, scroll if needed
*/
void ssd1306Print(char* line1, char* line2) {
Oled.println(line1);
Oled.println(line2);
delay(2000);
}
/*
Display single line of text on display, scroll if needed
*/
void ssd1306Print(char* line1) {
Oled.println(line1);
delay(2000);
}
// This pattern was borrowed from HardwareSerial and modified to support the ssd1306 display
OledSerial Oled(0); // Not sure about this, came from Hardwareserial
OledSerial::OledSerial(int x) {
displayQueue = xQueueCreate(5, sizeof(displayQueueMessage*));
# if defined(WIFI_Kit_32) || defined(WIFI_LoRa_32) || defined(WIFI_LoRa_32_V2)
pinMode(RST_OLED, OUTPUT);
digitalWrite(RST_OLED, LOW);
delay(50);
digitalWrite(RST_OLED, HIGH);
display = new SSD1306Wire(0x3c, SDA_OLED, SCL_OLED, GEOMETRY_128_64);
# elif defined(Wireless_Stick)
pinMode(RST_OLED, OUTPUT);
digitalWrite(RST_OLED, LOW);
delay(50);
digitalWrite(RST_OLED, HIGH);
display = new SSD1306Wire(0x3c, SDA_OLED, SCL_OLED, GEOMETRY_64_32);
# elif defined(ARDUINO_TTGO_LoRa32_v21new) // LILYGO® Disaster-Radio LoRa V2.1_1.6.1
pinMode(OLED_RST, OUTPUT);
digitalWrite(OLED_RST, LOW);
delay(50);
digitalWrite(OLED_RST, HIGH);
display = new SSD1306Wire(0x3c, OLED_SDA, OLED_SCL, GEOMETRY_128_64);
# endif
}
/*
Initialize ssd1306 oled display for use, and display animated OMG logo
*/
void OledSerial::begin() {
// SSD1306.begin(); // User OMG serial support
semaphoreOLEDOperation = xSemaphoreCreateBinary();
xSemaphoreGive(semaphoreOLEDOperation);
display->init();
if (displayFlip) {
display->flipScreenVertically();
} else {
display->resetOrientation();
}
display->setFont(ArialMT_Plain_10);
display->setColor(WHITE);
display->fillRect(0, 0, OLED_WIDTH, OLED_HEIGHT);
display->display();
ssd1306Intro(OLED_WIDTH * 0.24, (OLED_WIDTH / 2) - OLED_WIDTH * 0.2, (OLED_HEIGHT / 2) + OLED_HEIGHT * 0.2);
display->setLogBuffer(OLED_TEXT_ROWS, OLED_TEXT_BUFFER);
delay(1000);
}
/*
Dummy virtual functions carried over from Serial
*/
int OledSerial::available(void) {
}
/*
Dummy virtual functions carried over from Serial
*/
int OledSerial::peek(void) {
}
/*
Dummy virtual functions carried over from Serial
*/
int OledSerial::read(void) {
}
/*
Dummy virtual functions carried over from Serial
*/
void OledSerial::flush(void) {
}
/*
Erase display and paint it with the color. Used to
*/
void OledSerial::fillScreen(OLEDDISPLAY_COLOR color) {
if (xSemaphoreTake(semaphoreOLEDOperation, pdMS_TO_TICKS(30000)) == pdTRUE) {
display->clear();
display->setColor(color);
display->fillRect(0, 0, OLED_WIDTH, OLED_HEIGHT);
xSemaphoreGive(semaphoreOLEDOperation);
}
}
/*
Write line of text to the display with vertical scrolling of screen
*/
size_t OledSerial::write(const uint8_t* buffer, size_t size) {
if (xPortGetCoreID() == CONFIG_ARDUINO_RUNNING_CORE) {
if (xSemaphoreTake(semaphoreOLEDOperation, pdMS_TO_TICKS(30000)) == pdTRUE) {
nextDisplayPage = uptime() + DISPLAY_PAGE_INTERVAL;
display->clear();
display->setColor(WHITE);
display->setFont(ArialMT_Plain_10);
while (size) {
display->write((char)*buffer++);
size--;
}
display->drawLogBuffer(0, 0);
display->display();
xSemaphoreGive(semaphoreOLEDOperation);
return size;
}
}
// Default to Serial output if the display is not available
return Serial.write(buffer, size);
}
/*
Display full page message on the display.
- Used to display JSON messages published from each gateway module
*/
boolean OledSerial::displayPage(displayQueueMessage* message) {
if (xPortGetCoreID() == CONFIG_ARDUINO_RUNNING_CORE) {
if (xSemaphoreTake(semaphoreOLEDOperation, pdMS_TO_TICKS(30000)) == pdTRUE) {
display->clear();
display->setColor(WHITE);
display->setFont(ArialMT_Plain_10);
display->drawString(0, 0, message->title);
display->drawLine(0, 12, OLED_WIDTH, 12);
display->drawString(0, 13, message->line1);
display->drawString(0, 26, message->line2);
display->drawString(0, 39, message->line3);
display->drawString(0, 52, message->line4);
display->display();
xSemaphoreGive(semaphoreOLEDOperation);
return true;
} else {
return false;
}
} else {
return false;
}
}
/*
Display Animated OpenMQTTGateway logo, used on inital boot
- borrowed from ZboardM5.ino and tweaked for ssd1306 display ( removed color and tweaked size/location )
*/
void OledSerial::ssd1306Intro(int scale, int displayWidth, int displayHeight) {
drawLogo(scale, displayWidth, displayHeight, false, true, false, false, false, false); // Circle 2
drawLogo(scale, displayWidth, displayHeight, false, false, true, false, false, false); // Circle 3
drawLogo(scale, displayWidth, displayHeight, false, true, true, true, false, false); // Line 1
drawLogo(scale, displayWidth, displayHeight, false, true, true, false, true, false); // Line 2
drawLogo(scale, displayWidth, displayHeight, true, true, true, true, true, false); // Circle 1
drawLogo(scale, displayWidth, displayHeight, true, true, true, true, true, true); // Name
}
/*
Primitives behind OpenMQTTGateway logo
*/
void OledSerial::drawLogo(int logoSize, int circle1X, int circle1Y, bool circle1, bool circle2, bool circle3, bool line1, bool line2, bool name) {
if (xSemaphoreTake(semaphoreOLEDOperation, pdMS_TO_TICKS(30000)) == pdTRUE) {
int circle1T = logoSize / 15;
int circle2T = logoSize / 25;
int circle3T = logoSize / 30;
int circle3Y = circle1Y - (logoSize * 1.2);
int circle3X = circle1X - (logoSize * 0.13);
int circle2X = circle1X - (logoSize * 1.05);
int circle2Y = circle1Y - (logoSize * 0.8);
if (line1) {
display->setColor(BLACK);
display->drawLine(circle1X - 2, circle1Y, circle2X - 2, circle2Y);
display->drawLine(circle1X - 1, circle1Y, circle2X - 1, circle2Y);
display->drawLine(circle1X, circle1Y, circle2X, circle2Y);
display->drawLine(circle1X + 1, circle1Y, circle2X + 1, circle2Y);
display->drawLine(circle1X + 2, circle1Y, circle2X + 2, circle2Y);
display->setColor(WHITE);
display->fillCircle(circle3X, circle3Y, logoSize / 4 - circle3T * 2); // , WHITE);
}
if (line2) {
display->setColor(BLACK);
display->drawLine(circle1X - 2, circle1Y, circle3X - 2, circle3Y);
display->drawLine(circle1X - 1, circle1Y, circle3X - 1, circle3Y);
display->drawLine(circle1X, circle1Y, circle3X, circle3Y);
display->drawLine(circle1X + 1, circle1Y, circle3X + 1, circle3Y);
display->setColor(WHITE);
display->fillCircle(circle2X, circle2Y, logoSize / 3 - circle2T * 2); // , WHITE);
}
if (circle1) {
display->setColor(WHITE);
display->fillCircle(circle1X, circle1Y, logoSize / 2); // , WHITE);
display->setColor(BLACK);
display->fillCircle(circle1X, circle1Y, logoSize / 2 - circle1T); // , TFT_GREEN);
display->setColor(WHITE);
display->fillCircle(circle1X, circle1Y, logoSize / 2 - circle1T * 2); // , WHITE);
}
if (circle2) {
display->setColor(WHITE);
display->fillCircle(circle2X, circle2Y, logoSize / 3); // , WHITE);
display->setColor(BLACK);
display->fillCircle(circle2X, circle2Y, logoSize / 3 - circle2T); // , TFT_ORANGE);
display->setColor(WHITE);
display->fillCircle(circle2X, circle2Y, logoSize / 3 - circle2T * 2); // , WHITE);
}
if (circle3) {
display->setColor(WHITE);
display->fillCircle(circle3X, circle3Y, logoSize / 4); // , WHITE);
display->setColor(BLACK);
display->fillCircle(circle3X, circle3Y, logoSize / 4 - circle3T); // , TFT_PINK);
display->setColor(WHITE);
display->fillCircle(circle3X, circle3Y, logoSize / 4 - circle3T * 2); // , WHITE);
}
if (name) {
display->setColor(BLACK);
display->drawString(circle1X + (circle1X * 0.27), circle1Y, "penMQTTGateway");
}
display->display();
delay(50);
xSemaphoreGive(semaphoreOLEDOperation);
}
}
#endif
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