ESP32 BLE Sensor Gateway Kit with ESP32 + DHT22
ESP32 BLE Sensor Gateway Kit – Stream Environmental and Motion Data via MQTT
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine collecting real-time temperature, humidity, and motion data from distant corners of a lab or farm—without a single wire to a central controller. This kit lets you set up an ESP32-based BLE sensor gateway that scans for peripheral nodes, aggregates their readings, and pushes everything to a cloud MQTT broker over WiFi. Perfect for CBSE 12th‑grade CS projects, B.Tech ECE mini‑projects, or your Smart India Hackathon prototype.
What You'll Build
You’ll construct three wireless sensor nodes: two DHT22 temperature‑humidity transmitters and one MPU6050 motion node, each broadcasting data via BLE. A third ESP32 acts as the central station, continuously scanning, parsing advertisement packets, and republishing formatted JSON payloads to an MQTT topic of your choice. By the end, you’ll see live sensor streams on any MQTT dashboard—no soldering required.
What You'll Learn
- Configure ESP32 BLE scanning and advertising roles using Arduino IDE or PlatformIO
- Parse raw BLE manufacturer data into meaningful temperature, humidity, and accelerometer values
- Bridge BLE and TCP/IP by formatting and publishing sensor data to MQTT brokers like Mosquitto or HiveMQ
- Design a scalable multi-node architecture with basic noise filtering and watchdog timers for robust operation
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 3 |
| DHT22 | 2 |
| MPU6050 | 1 |
| 4.7kΩ Resistors | 10 |
| 100nF Caps | 10 |
| 400-pt Breadboard | 3 |
| M-M Wires | 25 |
| Micro USB Cable | 3 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
If you’re a CBSE Class 11‑12 student seeking a standout computer science investigation, this kit turns wireless networking theory into a working gateway. B.Tech ECE/EEE undergraduates tackling IoT or embedded systems coursework will appreciate the real‑world BLE‑MQTT integration. ATL Tinkering Lab mentors and hackathon participants (SIH, IIT Techfests) will find the multi‑node design ideal for prototyping environmental or asset‑tracking solutions that scale.
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.
What if I get stuck during the build?
Scan the QR code inside the kit to access the AI companion, which can answer specific code and wiring questions instantly. If you need human help, reach out on WhatsApp—our engineers respond within hours.
Do I need prior BLE or MQTT experience?
Basic Arduino IDE familiarity helps, but the AI companion explains every concept from advertising to broker configuration. We’ve tested this with intermediate-level makers, and most complete the gateway within 5 hours.
Can this setup handle more than three sensor nodes?
Absolutely. The central ESP32’s scanning code is built to handle dozens of peripherals; you can replicate the DHT22 or MPU6050 nodes with additional parts (not included) following the same pattern.
Will I receive any sample code or libraries?
Yes, the kit includes pre‑written, commented Arduino sketches for BLE advertising (peripheral nodes), BLE scanning with MQTT publishing (central node), and instructions to set up a free cloud broker—all delivered via the AI companion.
ESP32 central scans for BLE peripheral sensors and republishes all data to WiFi MQTT broker.
What's in this kit
- ESP32 Dev Board x3
- DHT22 x2
- MPU6050
- 4.7kΩ Resistors x10
- 100nF Caps x10
- 400-pt Breadboard x3
- M-M Wires x25
- Micro USB Cable x3
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items