ESP32 OTA Fleet Manager Kit with ESP32 + DHT22
ESP32 OTA Fleet Manager Kit: Build a Self-Updating Sensor Network with DHT22
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 six ESP32 development boards into a centralized firmware server and five remote sensor nodes capable of cryptographically signed over-the-air updates. This advanced system mirrors real-world industrial IoT environments where physically retrieving devices is impossible—temperature and humidity monitoring in a warehouse, agricultural sensor grids spread across acres, or multiple building automation endpoints. You’ll move beyond single-microcontroller projects and into networked firmware lifecycle management, a skill directly transferable to embedded engineering roles.
What You'll Build
Assemble a fully functional fleet of five DHT22 environmental sensor nodes, each enclosed and soldered onto a custom PCB prototype board. A sixth ESP32 acts as an HTTP server, hosting signed firmware binaries. Clients periodically check for new versions, verify digital signatures, and apply updates without any physical intervention. The result is a resilient IoT deployment where you can iterate software for all nodes from a single point, while each node continues collecting temperature and humidity data uninterrupted.
What You'll Learn
- Set up an ESP32 as a firmware update server with secure file serving over WiFi
- Implement OTA client logic with Ed25519 signature verification on ESP32 clients
- Integrate DHT22 readings and transmit data over HTTP/MQTT with LED status indication
- Design a power distribution circuit using an LM2596 buck converter and reliable soldering techniques
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 6 |
| DHT22 | 5 |
| 5mm LED | 15 |
| LM2596 Buck Converter | 1 |
| 4.7kΩ Resistors | 15 |
| 100nF Caps | 20 |
| PCB Prototype Board | 6 |
| Enclosure Box | 5 |
| 5V 2A PSU | 5 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
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
This advanced kit is built for B.Tech (ECE/EEE) students taking on IoT major projects, Smart India Hackathon teams prototyping remote monitoring solutions, and embedded systems enthusiasts at IITs, NITs, and VIT who have outgrown basic Arduino/ESP32 tutorials. If you’ve already built a standalone sensor project and want to understand production-grade firmware update pipelines, this kit bridges the gap between academic concepts and professional skills demanded by the embedded industry in India.
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 box to access the AI companion trained on this exact OTA fleet manager project; it can debug logic and hardware issues instantly. For tricky moments, our WhatsApp support line is manned by engineers who’ve built this kit themselves.
Can I use this kit for my college major project or Smart India Hackathon?
Absolutely. The kit produces a robust, demonstrable system with real-world applicability—remote firmware management for environmental monitoring. You’ll gain practical experience with signing, versioning, and OTA rollouts that aligns with industry practices, and you can document it as an end-to-end IoT solution.
Do I need to write the firmware from scratch?
The AI companion provides modular code templates and explains each secure update step. You are expected to understand and customize the logic—perfect for learning how signed OTA works at a low level, not just copying pre-built binaries.
Is soldering difficult for an advanced-level kit?
You should already be comfortable with basic soldering. The kit includes a soldering iron and wire; we specifically chose through-hole components and DHT22 modules to keep assembly manageable while you focus on the firmware complexity that defines this advanced project.
Central ESP32 serves signed firmware images. Five client ESP32 nodes auto-check and update over WiFi OTA.
What's in this kit
- ESP32 Dev Board x6
- DHT22 x5
- 5mm LED x15
- LM2596 Buck Converter
- 4.7kΩ Resistors x15
- 100nF Caps x20
- PCB Prototype Board x6
- Enclosure Box x5
- 5V 2A PSU x5
- Soldering Iron
- Solder Wire
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.
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