Matter over WiFi Device Variant 4 Kit with ESP32 + DHT22
Build a Matter over WiFi Temperature Sensor & Relay with ESP32 + 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.
Create a custom smart home device that reports temperature, humidity, and controls a relay – all natively integrated with Apple Home, Google Home, and Amazon Alexa. Using the ESP32 and DHT22, you’ll solder a compact, mains-powered unit that exposes real‑time sensor data and a switch output over WiFi, without any proprietary hub. Perfect for automating fans, lights, or heaters based on temperature thresholds, this kit turns a 12‑hour build into a permanent, voice‑controlled IoT node.
What You'll Build
A fully functional Matter‑certified sensor‑actuator that displays temperature and humidity on a 0.96‑inch OLED. The 5V relay can switch a light or fan, and the entire circuit fits inside the included enclosure for safe deployment. Commission it directly from your smartphone’s Apple Home, Google Home, or Alexa app – no bridge, no extra hardware.
What You'll Learn
- Flash the ESP32 with the Matter SDK and commission onto a WiFi fabric
- Read temperature and humidity from a DHT22 sensor with precise timing
- Control a relay via GPIO and manage AC loads safely using the LM2596 buck converter and 5V PSU
- Solder all components on a prototype board and assemble the final device into a bespoke enclosure
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| 5V Relay 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
Designed for B.Tech ECE/EEE final‑year students integrating Matter into capstone projects, IoT professionals building custom smart home solutions, and Smart India Hackathon teams tackling voice‑assistant interoperability. Also ideal for electronics hobbyists who want to move beyond Bluetooth and WiFi‑only devices to the new Matter standard without buying a commercial hub.
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?
Open the AI companion on your phone – it walks you through every connection and firmware command. You can also drop a WhatsApp message to our support team for a same‑day reply.
Do I need a separate Thread border router or Matter hub?
No. This device communicates directly over WiFi. Matter commission it from the Apple Home, Google Home, or Alexa app on your smartphone; no extra hub or bridge is required.
Is the enclosure suitable for mains voltage wiring?
The relay module can switch up to 10A at 250V, but the AC connections must be made by a qualified electrician. The enclosure safely houses the low‑voltage electronics; the included 5V PSU powers the circuit separately from the switched load.
What microcontroller programming experience is required?
Some familiarity with Arduino IDE or PlatformIO helps you verify the firmware, but you don’t need to write code. The AI companion provides a pre‑compiled Matter binary and step‑by‑step flashing instructions for the ESP32.
ESP32 Matter SDK device exposes temperature and relay to Apple Home, Google Home and Amazon Alexa natively.
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.
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