Writing to esp rain maker got error in serial monitor, need a suggestion to solve this issue (MEGH-4180)

[Vignesh1006]

11:15:27.025 -> E esp_rmaker_param: Current time not yet available. Cannot report time series data. 11:15:36.992 -> E (44667) MQTT_CLIENT: Writing didn't complete in specified timeout: errno=0 11:15:37.024 -> E (44667) esp_mqtt_glue: MQTT_EVENT_ERROR 11:15:37.024 -> E (44668) esp_mqtt_glue: MQTT Publish failed

[sanketwadekar]

@Vignesh1006 Please mention a detail description of what you are trying to build (which example you have flashed ), the device you are using, and the complete debug logs.

[Vignesh1006]

i've trying to monitor gas leakage using MQ2 with realtime reading on esp rainmaker app, with esp32

using below example

include

include

include

include

include

include

include

include "WiFiProv.h"

include

include

const char service_name = "Vignesh"; const char pop = "12345678";

// define the Chip Id uint32_t espChipId = 5;

// define the Node Name char nodeName[] = "Vignesh";

// define the Device Names

char deviceName_1[] = "LPG";

static uint8_t wifiLed = 2; //D2 static uint8_t gpio_reset = 0; int MQ2_PIN = 34; //RX2 int GREEN_LED = 14; int RED_LED = 25; int sensorThres = 400;

define DEFAULT_LPG 0

float lpg; MQ2 mq2(MQ2_PIN); SimpleTimer Timer;

static TemperatureSensor LPG("LPG");

void initWiFi() { WiFi.mode(WIFI_STA); WiFi.begin(service_name, pop); Serial.print("Connecting to WiFi .."); while (WiFi.status() != WL_CONNECTED) { Serial.print('.'); delay(1000); } Serial.println(WiFi.localIP()); }

bool GAS_STATE = false; uint32_t chipId = 0;

void sysProvEvent(arduino_event_t *sys_event) { switch (sys_event->event_id) {
case ARDUINO_EVENT_PROV_START:

if CONFIG_IDF_TARGET_ESP32

    Serial.printf("\nProvisioning Started with name \"%s\" and PoP \"%s\" on BLE\n", service_name, pop);
    printQR(service_name, pop, "ble");

else

    Serial.printf("\nProvisioning Started with name \"%s\" and PoP \"%s\" on SoftAP\n", service_name, pop);
    printQR(service_name, pop, "softap");

endif

    break;
    case ARDUINO_EVENT_WIFI_STA_CONNECTED:
    Serial.printf("\nConnected to Wi-Fi!\n");
    digitalWrite(wifiLed, true);
    break;
}

} void write_callback(Device device, Param param, const param_val_t val, void priv_data, write_ctx_t ctx) { const char device_name = device->getDeviceName(); const char param_name = param->getParamName(); if (strcmp(param_name, "LPG L") == 0) { Serial.printf("Received value = %2.2f for %s - %s\n", val.val.f, device_name, param_name); GAS_STATE = val.val.f; param->updateAndReport(val); }

}

void setup() {

Serial.begin(115200);
mq2.begin();

pinMode(wifiLed, OUTPUT);
pinMode(gpio_reset, INPUT);
pinMode(MQ2_PIN, INPUT);
pinMode(GREEN_LED, OUTPUT);

pinMode(RED_LED, OUTPUT); digitalWrite(wifiLed, LOW);

Node my_node;    
my_node = RMaker.initNode("WhiteFlame");

LPG.addCb(write_callback);    

my_node.addDevice(LPG);

Timer.setInterval(2000); 

//This is optional 
RMaker.enableOTA(OTA_USING_PARAMS);
//If you want to enable scheduling, set time zone for your region using setTimeZone(). 
//The list of available values are provided here https://rainmaker.espressif.com/docs/time-service.html
// RMaker.setTimeZone("Asia/Shanghai");
// Alternatively, enable the Timezone service and let the phone apps set the appropriate timezone
RMaker.enableTZService();
RMaker.enableSchedule();

//Service Name
for(int i=0; i<17; i=i+8) {
  espChipId |= ((ESP.getEfuseMac() >> (40 - i)) & 0xff) << i;
}

Serial.printf("\nChip ID:  %d Service Name: %s\n", espChipId, service_name);

Serial.printf("\nStarting ESP-RainMaker\n");
RMaker.start();

WiFi.onEvent(sysProvEvent);

if CONFIG_IDF_TARGET_ESP32

WiFiProv.beginProvision(WIFI_PROV_SCHEME_BLE, WIFI_PROV_SCHEME_HANDLER_FREE_BTDM, WIFI_PROV_SECURITY_1, pop, service_name);

else

WiFiProv.beginProvision(WIFI_PROV_SCHEME_SOFTAP, WIFI_PROV_SCHEME_HANDLER_NONE, WIFI_PROV_SECURITY_1, pop, service_name);

endif

LPG.updateAndReportParam(ESP_RMAKER_DEF_POWER_NAME, false);

}

void loop() { // Read GPIO0 (external button to reset device if(digitalRead(gpio_reset) == LOW) { //Push button pressed Serial.printf("Reset Button Pressed!\n"); // Key debounce handling delay(100); int startTime = millis(); while(digitalRead(gpio_reset) == LOW) delay(50); int endTime = millis();

    if ((endTime - startTime) > 10000) {
      // If key pressed for more than 10secs, reset all
      Serial.printf("Reset to factory.\n");
      RMakerFactoryReset(2);
    } else if ((endTime - startTime) > 3000) {
      Serial.printf("Reset Wi-Fi.\n");
      // If key pressed for more than 3secs, but less than 10, reset Wi-Fi
      RMakerWiFiReset(2);
    }
      delay(100);
}

if (WiFi.status() != WL_CONNECTED)
{
  //Serial.println("WiFi Not Connected");
  digitalWrite(wifiLed, false);
}
else
{
  //Serial.println("WiFi Connected");
  digitalWrite(wifiLed, true);
  if (Timer.isReady()) { 
    //Serial.println("Sending Sensor Data");

    Timer.reset();      // Reset a second timer
  }
}

ReadMQ2Sensor(); SendMQ2Sensor();

} void ReadMQ2Sensor() { int analogSensor = analogRead(MQ2_PIN);

if (analogSensor > sensorThres) { Serial.print("Pin A0: "); Serial.println("Gas Leakage is detected!");

digitalWrite(RED_LED, HIGH);
digitalWrite(GREEN_LED, LOW);  

} else { digitalWrite(RED_LED, LOW); digitalWrite(GREEN_LED, HIGH);

} delay(100); } void SendMQ2Sensor() { float* values= mq2.read(true); //set it false if you don't want to print the values to the Serial float t = mq2.readLPG(); Serial.print("LPG - "); Serial.println(t); LPG.updateAndReportParam("Temperature",t); if(t>250) { Serial.println("LPG above 250!"); esp_rmaker_raise_alert("Security Alert!\nGas Leakage is detected."); //digitalWrite(BUZZER_PIN, HIGH); //BUZZER_STATE = true; //buzzer_timer = millis(); delay(100); }

}

[sanketwadekar]

@Vignesh1006 Increase the timer interval to 5 minutes at least and send sensor readings only if WiFi is connected and the sensor reading has changed from its previous value.

[Vignesh1006]

ok, will modify it thanks for your suggestion.

[Vignesh1006]

its also failed, actually it works fine only for 2 to 3 cycles, then the data not received to esp rainmaker, values are got stuck in ui and alert also not raised in notification.

[sanketwadekar]

Hi @Vignesh1006 From your code, it looks like you are continuously calling ReadMQ2Sensor() and SendMQ2Sensor() inside loop(). It should get called once your timer is ready. Also, as mentioned earlier, please reset the timer interval to 5 minutes as updating the values too frequently will reduce your MQTT budget and your updates will get blocked for some time.

[Vignesh1006]

Thanks dude

[Vignesh1006]

Actually, it was works fine after set time interval to 6 sec