A DIY project utilizing an ESP32 and LoRa gateway to wirelessly collect and monitor temperature data from multiple thermocouples in a high-temperature industrial boiler environment.
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The ESP32 LoRa Gateway functions as a decentralized data monitoring system designed to acquire thermal measurements from industrial environments. At the core of the data collection nodes, an Arduino Mega interfaces with K-type thermocouples to read high-temperature analog signals from environments like industrial boilers. Because K-type thermocouples generate extremely small millivolt-level changes corresponding to temperature shifts, the system processes these inputs before transmitting the data. The remote nodes utilize LoRa radio units to send the collected sensor readings wirelessly over extended ranges, bypassing the need for extensive physical cabling in harsh industrial zones. Centrally, an ESP32 DevKit v1 board acts as the primary gateway, receiving the long-range radio packets sent by the remote transmitter units. Powered by an external power supply and housed within a protective IP64 cabinet to resist environmental dust and moisture ingress, the ESP32 processes the incoming telemetry. Using the Arduino IDE and ESP32 hardware serial libraries, the gateway system can parse the temperature data for local logging or further network transmission, ensuring continuous supervision of critical operational parameters.
Why Build This
Design a reliable, long-range wireless sensor network using LoRa technology for harsh industrial data acquisition.
Integrate multiple microcontroller platforms (Arduino Mega and ESP32 DevKit v1) to handle complex analog sensor inputs and wireless gateway processing.
Deploy robust enclosure techniques (IP64 cabinets) and stable power supplies suitable for deployment in high-temperature power plant environments.
Real-World Application
Industrial boiler temperature monitoring and safety data acquisition in power plants.
Skills You'll Learn
Thermocouple signal acquisition
LoRa wireless communication
Microcontroller serial interfacing
Power supply management
Enclosure environmental sealing
Safety Precautions
Handle high-temperature environments, AC power supplies, and sealed enclosures appropriately to avoid burns and electrical hazards.
Technology Tags
ESP32
LORA
ARDUINO
THERMOCOUPLE
DATA MONITORING
IOT
WIRELESS COMMUNICATION
Frequently Asked Questions
The Arduino Mega is well-suited for managing multiple analog sensor inputs from the K-type thermocouples, while the ESP32 provides the necessary processing power and integrated features to handle the LoRa gateway duties and system communications.
LoRa technology is specifically designed for long-range, low-power wireless communication, typically spanning several kilometers depending on line-of-sight and environmental obstacles present in an industrial setting.
The IP64-rated cabinet protects the sensitive electronic components, such as the ESP32 board and power supply, from dust, accidental splashes, and harsh conditions commonly found near industrial boilers.
Gallery
This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.
ESP32 WiFi+Bluetooth CP2102 Development Board
Rs. 520.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi
Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm
Rs. 45.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality
Rs. 89.00
Jumper Wire 10 Pin Male To Female 20cm
Rs. 45.00
