Online Configuration Guide - ESP32 Smart Farming

Step 1: IoT Setup Type Selection

BASIC_ONLINE

Minimal IoT setup with WiFi and basic web interface

Features:
• WiFi connectivity
• Basic web interface
• No cloud services
• Local monitoring only

STANDARD_ONLINE

Standard setup with DHT22, LCD, and ThingSpeak logging

Features:
• All standard features
• ThingSpeak cloud logging
• Web interface
• Basic IoT monitoring

IOT_MONITORING

Complete IoT setup with dual cloud services

Features:
• ThingSpeak + Adafruit IO
• Advanced monitoring
• Remote control
• Professional IoT setup

POTENTIOMETER_IOT

IoT setup with potentiometer control and monitoring

Features:
• Real-time threshold control
• Full IoT monitoring
• ThingSpeak logging
• Professional control

PROFESSIONAL_IOT

Complete professional setup with all IoT features

Features:
• All sensors and controls
• Dual cloud services
• LCD 2004 display
• Enterprise monitoring

CUSTOM_ONLINE

Full manual configuration for advanced IoT users

Features:
• Complete IoT control
• Manual service selection
• Custom configurations
• Advanced IoT setup

Step 2: WiFi & Network Configuration

WiFi Connection Settings

WiFi Network Name WIFI_SSID "YOUR_WIFI_SSID"

Your WiFi network SSID (name)

WiFi Password WIFI_PASSWORD "YOUR_WIFI_PASSWORD"

Your WiFi network password

Connection Timeout WIFI_TIMEOUT 10000ms

Maximum time to wait for WiFi connection

Access Point Fallback

AP Mode Enabled AP_MODE_ENABLED true

Creates local WiFi when internet fails

AP Network Name AP_SSID "SmartFarming-ESP32"

Local access point network name

AP Password AP_PASSWORD "smartfarm123"

Access point password (min 8 chars)

Step 3: IoT Services Configuration

Master IoT Control

Enable All IoT Services IOT_SERVICES_ENABLED true

Master switch for all cloud services

Web UI Only Mode WEB_UI_ONLY_MODE false

Use only built-in web interface, no cloud

Individual Services

ThingSpeak Logging THINGSPEAK_ENABLED true

Enable ThingSpeak cloud data logging

Adafruit IO ADAFRUIT_IO_ENABLED false

Enable Adafruit IO dashboards

Cloud Service Credentials

ThingSpeak Setup

API Key THINGSPEAK_API_KEY "YOUR_API_KEY"

Channel ID THINGSPEAK_CHANNEL_ID "YOUR_CHANNEL_ID"

Adafruit IO Setup

Username ADAFRUIT_IO_USERNAME "YOUR_USERNAME"

API Key ADAFRUIT_IO_KEY "YOUR_API_KEY"

Web Interface Configuration

Web Server Settings

Server Port WEB_SERVER_PORT 80

Authentication ENABLE_WEB_AUTH true

Default Credentials

Username WEB_USERNAME "admin"

Password WEB_PASSWORD "smartfarm123"

OTA Updates

Hostname OTA_HOSTNAME "smart-farming-esp32"

Password OTA_PASSWORD "your_ota_password"

Sensor Configuration

Sensor Calibration

Soil Moisture Sensor

Calibrate by testing in dry air and water:

Dry Value: 4095
SOIL_MOISTURE_DRY_VALUE

Wet Value: 0
SOIL_MOISTURE_WET_VALUE

LDR Sensor Calibration

Calibrate for light detection:

Dark Value: 4095
LDR_DARK_VALUE

Bright Value: 0
LDR_BRIGHT_VALUE

Sensor Validation

Temperature Validation

Valid temperature range:

Min: -10.0°C
MIN_TEMPERATURE

Max: 60.0°C
MAX_TEMPERATURE

Humidity Validation

Valid humidity range:

Min: 0.0%
MIN_HUMIDITY

Max: 100.0%
MAX_HUMIDITY

Advanced Configuration

Data Transmission

Update Interval DATA_TRANSMISSION_INTERVAL 300000ms

5 minutes between cloud updates

Max Retries MAX_TRANSMISSION_RETRIES 3

Retry failed transmissions

Memory Management

Log Buffer Size LOG_BUFFER_SIZE 50

Readings stored in memory

Memory Check MEMORY_CHECK_INTERVAL 300000ms

Monitor available memory

Network Settings

HTTP Timeout HTTP_TIMEOUT 10000ms

Cloud service request timeout

DNS Timeout DNS_TIMEOUT 5000ms

DNS resolution timeout

Complete Configuration Examples

Web UI Only Mode

// Local operation with web interface
#define IOT_SERVICES_ENABLED false
#define WEB_UI_ONLY_MODE true
#define THINGSPEAK_ENABLED false
#define ADAFRUIT_IO_ENABLED false

Full IoT Mode

// Complete IoT with dual cloud services
#define IOT_SERVICES_ENABLED true
#define WEB_UI_ONLY_MODE false
#define THINGSPEAK_ENABLED true
#define ADAFRUIT_IO_ENABLED true