[Tutorial] : Smart Agriculture Robot using the Favoriot platform

To implement the Smart Agriculture Robot using the Favoriot platform, follow this step-by-step guide that aligns with Favoriot’s latest settings and best practices.

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1. Hardware Components

Component	Function
ESP32	Microcontroller with Wi-Fi connectivity for IoT integration.
Soil Moisture Sensor	Measures soil moisture levels.
DC Motors & Motor Driver	Enables robot movement.
Water Pump & Relay Module	Controls the watering mechanism.
Battery Pack	Powers the robot and its components.
Ultrasonic Sensor (Optional)	Detects obstacles to navigate the robot safely.
ESP32-CAM (Optional)	Captures images for AI-based plant health analysis.

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2. System Architecture

1. Data CollectionThe Soil Moisture Sensor reads soil moisture levels.
   • The ESP32 processes these readings and transmits the data to the Favoriot Cloud via Wi-Fi.
   • Optional: The ESP32-CAM captures images of crops for AI analysis.
2. Data Processing & Decision MakingThe Favoriot IoT Platform receives and processes the sensor data.
   • If soil moisture falls below a predefined threshold (e.g., 30%), Favoriot triggers a command to initiate watering.
   • The ESP32 activates the water pump and moves the robot to the next plant as needed.
3. Real-time Monitoring & ControlFarmers can monitor soil moisture levels, plant health, and robot status through Favoriot’s Dashboard.
   • Manual controls are accessible via a mobile or web application integrated with Favoriot.

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3. Step-by-Step Development

Step 1: Setting Up Hardware

• Connect Soil Moisture Sensor to ESP32:VCC → 3.3V
  • GND → GND
  • Signal Pin → Analog Pin (e.g., GPIO 34)
• Connect Motor Driver to ESP32:IN1, IN2, IN3, IN4 → Digital Pins (e.g., GPIO 5, 18, 19, 21)
  • Enable Pins → Connected to PWM-capable pins for speed control
• Connect Water Pump via Relay Module:Relay IN Pin → Digital Pin (e.g., GPIO 26)
  • Relay VCC and GND → 3.3V and GND
• Power Supply:Use a suitable battery pack (e.g., Li-ion 18650) to power the ESP32 and peripherals.

Step 2: Programming the ESP32

• Initialize Wi-Fi Connection:Set up the ESP32 to connect to a Wi-Fi network using the WiFi.h library.
• Read Sensor Data:Use the analogRead() function to obtain soil moisture levels.
• Control Actuators:Use digital write functions to control the relay module for the water pump and motor driver for movement.
• Transmit Data to Favoriot:Utilize HTTP POST requests to send sensor data to Favoriot’s REST API.

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

const char* ssid = "Your_WiFi_SSID";
const char* password = "Your_WiFi_Password";
String favoriotApiKey = "Your_Favoriot_API_Key";
String favoriotURL = "https://apiv2.favoriot.com/v2/streams";

int moisturePin = 34;
int pumpPin = 26;

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  
  pinMode(moisturePin, INPUT);
  pinMode(pumpPin, OUTPUT);
  digitalWrite(pumpPin, LOW);
}

void loop() {
  int moistureValue = analogRead(moisturePin);
  int moisturePercent = map(moistureValue, 0, 4095, 100, 0); 

  Serial.print("Soil Moisture: ");
  Serial.println(moisturePercent);

  // Send data to Favoriot
  sendDataToFavoriot(moisturePercent);

  // Activate Water Pump if soil is dry
  if (moisturePercent < 30) {
    digitalWrite(pumpPin, HIGH); // Turn on pump
    delay(5000);                 // Water for 5 seconds
    digitalWrite(pumpPin, LOW);  // Turn off pump
  }

  delay(60000); // Send data every 1 minute
}

void sendDataToFavoriot(int moisture) {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin(favoriotURL);
    http.addHeader("Content-Type", "application/json");
    http.addHeader("apikey", favoriotApiKey);

    String payload = "{\"device_developer_id\":\"your_device_id\",\"data\":{\"moisture\":" + String(moisture) + "}}";
    int httpResponseCode = http.POST(payload);
    
    Serial.print("HTTP Response Code: ");
    Serial.println(httpResponseCode);
    
    http.end();
  }
}


Step 3: Configuring Favoriot Platform

1. Create a Favoriot Account:Sign up at Favoriot IoT Platform.
2. Create a Project:Navigate to the Projects section and create a new project (e.g., “Smart Agriculture Robot”).
3. Register a Device:Within the project, add a new device representing your robot (e.g., “AgriBot”).
   • Note the Device Developer ID and Access Token for API communications.
4. Set Up Data Streams:Define data streams for parameters like soil

Conclusion

This Automated Parking System enables real-time vehicle monitoring via Favoriot IoT Platform. You can enhance it by integrating:

✅ Payment systems for parking fees
✅ Mobile notifications for users
✅ Data analytics for optimizing parking usage

This project demonstrates a scalable smart parking system with IoT and cloud-based monitoring.

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. The source code may need adjustments to fit the final project design.