Build a LoRaWAN HVAC Performance Monitor with ESP32 & Chirpstack OTAA

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Transform a standard ESP32 into a long-range wireless sensor node that monitors temperature, humidity, and barometric pressure — exactly the data points needed to assess HVAC performance in server rooms, warehouses, or campus buildings. The RA-02 LoRa module joins a Chirpstack LoRaWAN network using Over-The-Air Activation (OTAA), pushing decoded payloads straight into a time-series database for long-term trend analysis. By the end of the build, you will have a field-deployable monitor that transmits over hundreds of metres without WiFi, running on a LiPo battery inside a waterproof enclosure.

What You'll Build

You will assemble and program a fully autonomous LoRaWAN node that reads environmental data from the DHT22 and BMP280 sensors, formats a compact binary payload, and transmits it to an online Chirpstack server using OTAA. Once the data reaches Chirpstack, the AI companion guides you through decoding and storing it in InfluxDB or MySQL, then visualizing HVAC performance on a Grafana dashboard. The final unit is battery-operated, enclosed, and ready for real-world deployment in your lab or building.

What You'll Learn

• Configure ESP32 with RA-02 LoRa (SX1278) for OTAA activation on a Chirpstack LoRaWAN server
• Integrate DHT22 and BMP280 sensors over I2C and one-wire protocols, handling byte-level payload construction
• Set up a complete Chirpstack stack (gateway bridge, network server, application server) and register a device with AppKey/DevEUI
• Decode binary payload, store time-series data, and build a Grafana dashboard for HVAC efficiency monitoring

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This advanced kit is built for B.Tech ECE and EEE students tackling IoT-driven HVAC optimization as a major or capstone project. It fits seamlessly into Smart India Hackathon hardware tracks that require long-range sensor networks, and offers engineering colleges — IITs, NITs, VIT, BITS Pilani — a ready-to-deploy LoRaWAN node for lab coursework. If you have experience with Arduino/ESP32 and are comfortable with soldering, you will hit the ground running.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.