8 Ready-to-Use Examples

Example Projects

Get started quickly with these real-world IoT automation examples. Each includes complete flows and step-by-step explanations.

Beginner Agriculture

Smart Greenhouse Controller

Automated temperature and humidity control for optimal plant growth

Nodes Used:

dht22 switch gpio-out telegram

Features:

Temperature monitoring

Humidity control

Fan automation

Mobile alerts

How it works:

DHT22 reads temperature/humidity every 30s

Switch node checks if temp > 28°C

GPIO controls exhaust fan relay

Telegram sends alert if humidity > 80%

View Tutorial

Beginner Security

Motion-Activated Security System

PIR sensor triggers camera capture and sends alerts

Nodes Used:

pir delay http-request email

Features:

Motion detection

Debounce logic

Camera integration

Email notifications

How it works:

PIR sensor detects motion

Delay node prevents duplicate triggers (10s)

HTTP request captures image from IP camera

Email node sends alert with attachment

View Tutorial

Intermediate Energy

Energy Consumption Dashboard

Monitor and visualize power usage with real-time charts

Nodes Used:

ads1x15 function influxdb chart

Features:

Current sensing

Power calculation

Time-series storage

Live dashboard

How it works:

ADS1115 reads current sensor (SCT-013)

Function calculates power (V × I × PF)

InfluxDB stores readings every second

Dashboard displays real-time power chart

View Tutorial

Advanced AI/ML

AI-Powered Smart Doorbell

Face recognition with local LLM for visitor announcements

Nodes Used:

http-in ollama function telegram

Features:

Image capture

Face detection

LLM description

Smart notifications

How it works:

HTTP endpoint receives camera snapshot

Ollama (LLaVA) analyzes the image

Function formats visitor description

Telegram announces: "Person at door: tall man with glasses"

View Tutorial

Advanced Industrial

Industrial Modbus SCADA

Monitor and control PLCs via Modbus TCP/RTU

Nodes Used:

modbus-read modbus-write postgresql gauge

Features:

Coil control

Data logging

HMI dashboard

How it works:

Modbus reads holding registers from PLC

Function scales raw values to engineering units

PostgreSQL logs all readings with timestamps

Dashboard shows live gauges and controls

View Tutorial

Intermediate Environment

Complete Weather Station

Multi-sensor weather monitoring with cloud sync

Nodes Used:

bme280 bh1750 mqtt-out influxdb

Features:

Multi-sensor data

MQTT publishing

Historical storage

Weather display

How it works:

BME280 reads temp, humidity, pressure

BH1750 measures light intensity

MQTT publishes to home/weather topic

InfluxDB stores for Grafana visualization

View Tutorial

Intermediate Home

Automated Aquarium System

pH monitoring, feeding schedule, and lighting control

Nodes Used:

ads1x15 schedule pwm discord

Features:

pH monitoring

Scheduled feeding

LED dimming

Discord alerts

How it works:

ADC reads pH probe voltage continuously

Schedule triggers feeder servo at 8am/6pm

PWM controls LED brightness (sunrise/sunset)

Discord alerts if pH outside 6.5-7.5 range

View Tutorial

Advanced AI/ML

Voice-Controlled GPT Assistant

Local voice commands processed by GPT-4 for home control

Nodes Used:

http-in openai function mqtt-out

Features:

Voice transcription

Intent parsing

GPT reasoning

Device control

How it works:

HTTP receives transcribed voice command

OpenAI GPT-4 parses intent and parameters

Function maps intent to MQTT topic/payload

MQTT publishes command to smart devices

View Tutorial

Quick Start Templates

One-click templates to get you started instantly

Sensor Logger

Log any sensor to InfluxDB

Alert System

Multi-channel notifications

Dashboard

Charts, gauges & controls

MQTT Bridge

Connect to any broker

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