Digital Twin Sensor Shadow Kit with ESP32 + DHT22
ESP32 Digital Twin Sensor Shadow Kit: Sync Device State to AWS IoT in 500ms
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
You'll assemble a sensor station that mirrors environmental data to AWS IoT Core and responds to desired shadow state changes — such as toggling relays — within half a second. Engineers and advanced makers building industrial monitoring prototypes or Smart India Hackathon solutions will find a ready stack of hardware and cloud logic, eliminating days of integration guesswork.
What You'll Build
A fully functional IoT node that publishes temperature, humidity, and pressure readings to AWS IoT and subscribes to shadow updates to drive a 4‑channel relay module. The OLED display shows live sensor values and the current shadow state. When you update the desired state in the AWS cloud, the onboard relay snaps to position in under 500ms, creating a true digital twin that mirrors intent to hardware in real time.
What You'll Learn
- Provisioning an ESP32 with AWS IoT Core using MQTT and X.509 device certificates
- Implementing device shadow documents to synchronize desired and reported states
- Reading multiple sensors (DHT22, BMP280) and timestamping data with a DS3231 RTC
- Designing a regulated 5V supply with a buck converter and integrating relay control logic
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | x1 |
| DHT22 | x1 |
| BMP280 | x1 |
| 4-ch Relay Module | x1 |
| DS3231 RTC | x1 |
| LM2596 Buck Converter | x1 |
| 0.96in OLED | x1 |
| 100nF Caps | x10 |
| 4.7kΩ Resistors | x5 |
| PCB Prototype Board | x2 |
| Enclosure Box | x1 |
| 5V 2A PSU | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
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 kit targets B.Tech ECE and EEE students building final‑year IoT demonstrators, industry engineers prototyping AWS‑connected devices for startups, and participants of Smart India Hackathon who need a reliable digital twin base station. If you've worked with ESP32 basics and want to move to production‑style cloud‑synced hardware, this kit removes the integration barrier and lets you focus on the application logic.
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 provides step‑by‑step troubleshooting tailored to this kit's wiring and firmware. If you need human help, our WhatsApp team responds within a few hours.
Do I need an AWS account and prior cloud experience?
Some familiarity helps, but the AI companion walks you through creating an AWS IoT Core thing, generating certificates, and attaching policies. You'll learn as you build.
How fast is the device shadow sync? Can I see it working immediately?
Our pre‑flashed firmware reflects desired state changes on hardware within 500ms. The OLED display updates instantly, so you can watch a relay toggle when you change a value in the AWS console.
Can I integrate this kit with custom dashboards or mobile apps?
Yes. The device shadow is accessible via AWS SDKs and REST APIs. The AI companion includes sample code for a simple Node‑RED dashboard and an Android app front‑end that subscribes to shadow topics.
ESP32 device state synced to AWS IoT Device Shadow. Shadow desired state changes reflected in hardware within 500ms.
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