Blog
Hands-on IoT projects and n8n workflow automations — with ESP32, Arduino and Raspberry Pi.
Build a Smart Farm: Auto-Irrigation with ESP32, a Soil Sensor & n8n
Keep your crops watered automatically. Read soil moisture on an ESP32, stream it to IoTFlow over MQTT, and let an n8n flow switch the pump when the soil gets dry.
Smart Buildings: Demand-Controlled HVAC with CO₂ Sensing & n8n
Fresh air without wasting energy. An ESP32 + SCD30 measures room CO₂; an n8n flow boosts ventilation only when it's needed, then eases off.
Logistics: Fleet Cold-Chain Tracking with Raspberry Pi GPS & n8n
Prove your cold chain in transit. A Raspberry Pi streams truck temperature and GPS to IoTFlow, and an n8n flow alerts dispatch and logs the trip when it drifts.
Water Management: Auto Tank Refill with an Arduino & n8n
Never run a tank dry. An Arduino float sensor reports tank level to IoTFlow, and an n8n flow starts the fill pump when the level drops — and stops it when full.
Retail: Keep Fridges & Coolers Safe with an ESP8266 & n8n
Spoiled stock is lost revenue. An ESP8266 watches cooler temperature and an n8n flow escalates to the store on WhatsApp and email before product is at risk.
Smart City: ESP32 Parking Guidance with Ultrasonic Sensors & n8n
Help drivers find a free bay fast. ESP32 + HC-SR04 sensors report each parking bay to IoTFlow, and an n8n flow updates a guidance sign and logs occupancy.
Industrial IoT: Predictive Maintenance with Vibration Sensors & n8n
Catch failures before they happen. An Arduino reads motor vibration; when it crosses a limit, an n8n flow opens a maintenance ticket and pings the team on Slack.
Cold-Chain Monitoring: Vaccine Fridge Alerts with Raspberry Pi & n8n
Protect temperature-sensitive stock. A Raspberry Pi logs fridge temperature to IoTFlow and an n8n flow escalates to staff on Telegram and email the moment it drifts out of range.