Zero-Trust Device Authentication Node Kit with ESP32 + LED
Zero-Trust Device Authentication Node Kit: Build Secure IoT Onboarding with ESP32 mTLS and X.509 Certificates
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
In an era where every unauthenticated IoT device is a network breach waiting to happen, securing device identity is no longer optional. This kit enables you to build a hardware node that authenticates IoT endpoints using X.509 certificates and mutual TLS, creating a zero-trust architecture right at the edge. From smart factories to connected offices, you'll deploy a real-world authentication mechanism that logs every attempt to an SD card for audit trails.
What You'll Build
A compact, standalone authentication node built around an ESP32 that performs certificate verification, time-synchronised logging via DS3231 RTC, and displays status on an OLED. It serves as a gatekeeper for device onboarding, rejecting untrusted endpoints without burdening the central server.
What You'll Learn
- Implement mutual TLS (mTLS) handshake on ESP32 using X.509 certificates
- Configure a real-time clock for accurate timestamped audit logs
- Design an edge authentication system that validates device certificates before granting network access
- Deploy a self-contained logging module on SD card for offline forensic analysis
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| LM2596 Buck Converter | 1 |
| 0.96in OLED | 1 |
| 100nF Caps | 10 |
| 4.7kΩ Resistors | 5 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 5V 2A PSU | 1 |
| 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 project is ideal for IoT security architects, enterprise network administrators, cybersecurity researchers, and M.Tech final-year students at institutions like IITs, NITs, and BITS Pilani. It’s also suited for professionals preparing Smart India Hackathon proposals in the cybersecurity domain or building secure edge solutions for startups.
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?
The AI companion walks you through every step; you can also message us on WhatsApp for direct guidance from our engineer team.
Do I need prior experience with TLS certificates?
Basic familiarity with certificates helps, but the AI companion includes a complete OpenSSL guide to generate and flash the required CA, server, and client certificates.
How do I generate the X.509 certificates?
The project companion provides clear, tested commands for OpenSSL to create a self-signed CA, device certificates, and private keys suitable for the ESP32.
What if my organization uses a different RTC or display?
The kit is self-contained and the code is written for this exact hardware. The AI companion is trained on this combination, but you can adapt the open‑source firmware to other components.
ESP32 implements X.509 certificate-based mutual TLS authentication for IoT device onboarding. Logs to SD.
What's in this kit
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.
Other projects you can build
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