ESP32 Wireless Sensor Node with BLE Kit – Build an IoT Environment Monitor

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

Monitor temperature, humidity, barometric pressure, and ambient light from your smartphone without any internet — just BLE advertisements. This kit transforms an ESP32 into a self-contained wireless sensor node that broadcasts environmental data every second, viewable on any BLE scanner app. Ideal for smart agriculture pilots, home automation experiments, or wearable environment trackers, you’ll have a battery-operable (with minor modification) node that doesn’t rely on WiFi or cloud infrastructure.

What You'll Build

A compact, battery-operable sensor node that reads DHT22, BMP280, and two LDRs, then packs the measurements into BLE advertisement packets. You’ll be able to walk around and see real-time sensor values on your phone. The onboard OLED displays the raw readings locally, while the BLE transmissions make the data instantly available for logging, triggering, or integration into larger IoT dashboards.

What You'll Learn

• Configuring the ESP32’s BLE advertising payload to broadcast custom sensor data without pairing
• Interfacing multiple I2C and analog sensors (DHT22, BMP280, LDR) on a single microcontroller
• Structuring data packets to fit within BLE advertisement length limits
• Debugging wireless sensor timing and power consumption for real-world deployment

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit suits B.Tech ECE/EEE students building final‑year IoT projects, Smart India Hackathon teams needing a rapid wireless sensor proof‑of‑concept, and advanced ATL Tinkering Lab members who have outgrown basic kits. If you’re at IIT, NIT, VIT, or BITS and need a reliable BLE node that works without cloud dependencies, you’ll find this build immediately useful.

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.