[Tutorial] : Smart Temperature Monitoring in Cold Transportation Using Favoriot

Project Objective:

“Using IoT for Temperature Monitoring in Cold Transportation”

• To monitor the temperature inside delivery trucks in real-time.
• To store temperature data in the cloud for analysis and records.
• To send alerts when temperature exceeds or falls below the defined threshold.
• To ensure the integrity of temperature-sensitive products like vaccines or frozen foods.

Required Components:

Step 1: Register and Configure the FAVORIOT Platform

1. Sign up at: https://platform.favoriot.com/
2. Create a new device and copy the Device Developer ID and API Key.
3. Set the data format like this:

   {
     "device_developer_id": "suhu_trak_01",
     "data": {
       "temperature": 5.6
     }
   }
   

Step 2: Connect the Hardware

Wiring DS18B20 (example sensor):

• GND to ESP32 GND
• VCC to 3.3V on ESP32
• Data to GPIO pin (e.g., D4) with 4.7kΩ pull-up resistor between VCC and Data

Step 3: Arduino Code to Send Data to FAVORIOT

#include <WiFi.h>
#include <HTTPClient.h>
#include <OneWire.h>
#include <DallasTemperature.h>

// WiFi Credentials
const char* ssid = "YOUR_WIFI_NAME";
const char* password = "YOUR_WIFI_PASSWORD";

// Favoriot Config
String device_developer_id = "suhu_trak_01";
String apiKey = "YOUR_API_KEY";

// Sensor Setup
#define ONE_WIRE_BUS 4 // Pin D4
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);

  Serial.print("Connecting to WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println("\nWiFi connected!");

  sensors.begin();
}

void loop() {
  sensors.requestTemperatures();
  float tempC = sensors.getTempCByIndex(0);
  Serial.print("Temperature: ");
  Serial.println(tempC);

  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;

    String serverPath = "https://apiv2.favoriot.com/v2/streams";

    http.begin(serverPath);
    http.addHeader("Content-Type", "application/json");
    http.addHeader("apikey", apiKey);

    String httpRequestData = "{\"device_developer_id\":\"" + device_developer_id + "\",\"data\":{\"temperature\":" + String(tempC) + "}}";

    int httpResponseCode = http.POST(httpRequestData);

    Serial.print("Response code: ");
    Serial.println(httpResponseCode);

    http.end();
  }

  delay(10000); // send every 10 seconds
}

Step 4: Monitor on FAVORIOT Dashboard

1. Log in to the Favoriot Dashboard.
2. Select the device you’ve created.
3. You can view the live temperature graph.
4. Use Rules/Alerts feature to:
   • Send email/Telegram/Slack alerts when temperature is out of range.
   • Store temperature logs for auditing and analysis.

Optional Enhancements:

• Add GPS NEO-6M module and modify JSON data to include latitude and longitude.
• Add a buzzer or LED for local alerting when temperature is out of range.
• Use a power relay to turn on cooling fan automatically when temperature rises.

Project Value-Add:

• Complies with cold-chain standards for pharmaceuticals & food delivery.
• Can be integrated with Google Maps to track critical temperature zones.
• Favoriot platform supports long-term data storage and analytics.

References

• Favoriot Platform Registration (FREE and Paid)
• Favoriot Full Documentation (Official)
• Favoriot Github
• How-To Use Favoriot Platform Video Playlist

Disclaimer

This article provides a step-by-step guide but is intended only as a guideline. The source code may need adjustments to fit the final project design.