[Tutorial] : Smart Street Lighting System Utilizing IoT and FAVORIOT

Here’s a structured and detailed step-by-step guide, including components and source code, specifically based on Favoriot for the Smart Street Lighting System utilizing IoT.

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✅ Project Objective

Create an energy-efficient street lighting system that automatically adjusts brightness based on pedestrian and vehicle movement, reducing energy consumption and maintenance costs.

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🛠️ Step-by-Step Guide

Step 1: Project Overview

Build an IoT-based smart lighting system using Favoriot that automatically adjusts brightness levels based on detected motion from pedestrians and vehicles, ensuring efficient energy usage.

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Step 2: Components Required

Hardware:

• Microcontroller: NodeMCU ESP8266 or ESP32 (Wi-Fi Enabled)
• Sensors:
  • PIR Motion Sensor (HC-SR501): For detecting pedestrian/vehicle movement.
  • Light Dependent Resistor (LDR): Measuring ambient brightness.
• Lighting:
  • High-Power LED or Street Lamp: Controlled via relay or MOSFET.
• Relay Module or MOSFET Module: To control high-power LED.
• Power Supply: 5V for NodeMCU and 12V DC power for LED street lights.
• Connecting wires and breadboard: For circuit assembly.

Software:

• Favoriot IoT Platform (https://platform.favoriot.com/)
• Arduino IDE

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Step 3: Circuit Connection

1. Connect PIR Motion Sensor:
   • VCC → 5V NodeMCU
   • GND → GND NodeMCU
   • OUT → NodeMCU Pin D2 (GPIO4)
2. Connect LDR (with resistor as a voltage divider):
   • One leg to 3.3V, another leg connected to NodeMCU A0 analog input pin through a 10kΩ resistor, then to GND.
3. Connect Relay Module:
   • VCC → 5V
   • GND → GND
   • IN Signal → NodeMCU Pin D1 (GPIO5)
   • Connect LED street light positive line through relay normally-open terminals.

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Step 4: Favoriot Setup

• Create Account at Favoriot
• Create a New Project: “Smart Street Lighting”
• Add Device: e.g., streetlamp1
• Copy your device’s API Key and Device Developer ID from Favoriot.

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📌 Step 5: Software Implementation (Code)

Upload this code using Arduino IDE to NodeMCU:

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>

const char* ssid       = "YOUR_WIFI_SSID";
const char* password   = "YOUR_WIFI_PASSWORD";
const char* favoriotUrl= "http://api.favoriot.com/v2/streams";
const String apiKey    = "YOUR_FAVORIOT_API_KEY";
const String deviceId  = "streetlamp1";

#define PIR_PIN D2
#define RELAY_PIN D1
#define LDR_PIN A0

void setup() {
  Serial.begin(115200);
  pinMode(PIR_PIN, INPUT);
  pinMode(RELAY_PIN, OUTPUT);
  
  WiFi.begin(ssid, password);
  Serial.print("Connecting WiFi");
  while(WiFi.status() != WL_CONNECTED){
    delay(500);
    Serial.print(".");
  }
  Serial.println("Connected!");
}

void loop() {
  int motionDetected = digitalRead(PIR_PIN);
  int ambientLight = analogRead(LDR_PIN);
  
  Serial.print("Motion: ");
  Serial.print(motionDetected);
  Serial.print(" | Ambient Light: ");
  Serial.println(ambientLight);

  if(motionDetected == HIGH && ambientLight > 300){
    digitalWrite(RELAY_PIN, HIGH); // Bright when motion detected
  }else if(ambientLight < 300){
    digitalWrite(RELAY_PIN, LOW); // Turn off during daytime
  }else{
    digitalWrite(RELAY_PIN, LOW); // Dim/off if no motion
  }

  sendDataToFavoriot(motionDetected, ambientLight);
  delay(30000); // Send data every 30 seconds
}

void sendDataToFavoriot(int motion, int light) {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    http.begin(favoriotUrl);
    http.addHeader("Content-Type", "application/json");
    http.addHeader("apikey", apiKey);

    String payload = "{\"device_developer_id\":\"" + deviceId + "\",\"data\":{\"motion\":" + String(motion) + ",\"ambient_light\":" + String(light) + "}}";
    
    int httpResponseCode = http.POST(payload);
    if(httpResponseCode>0){
      String response = http.getString();
      Serial.print("Response: ");
      Serial.println(response);
    }else{
      Serial.print("Error sending data: ");
      Serial.println(httpResponseCode);
    }
    http.end();
  } else {
    Serial.println("WiFi disconnected!");
  }
}

Important:
Replace YOUR_WIFI_SSID, YOUR_WIFI_PASSWORD, YOUR_FAVORIOT_API_KEY, and streetlamp1 with your details.

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📊 Step 6: Monitoring via FAVORIOT Dashboard

• Log in to your Favoriot Dashboard.
• View live-stream data from sensors.
• Create visual graphs for real-time monitoring.
• Configure alerts for maintenance notifications or abnormal readings.

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⚙️ Step 7: Testing & Validation

• Install the setup in real-world environments.
• Ensure streetlights activate fully upon detection of motion.
• Confirm lights remain dim/off when no movement or during daylight.
• Check sensor data transmission to Favoriot regularly.

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🔄 Step 8: Maintenance & Future Improvements

• Monitor system performance on the Favoriot platform regularly.
• Conduct sensor and hardware inspections monthly.
• Potential enhancements:
  • Integrate additional environmental sensors (air quality, noise levels).
  • Advanced analytics with other smart city components.

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 and only serves as a guideline. The source code may need adjustments to fit the final project design.