ESP32 HTTP REST API Server Kit with ESP32 + DHT22
ESP32 REST API Server Kit: Build WiFi JSON Endpoints for Sensor Data
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This kit transforms your ESP32 into a local WiFi server that delivers real-time temperature, humidity, distance, and light readings as structured JSON over HTTP. Any device on the same network—laptop, phone, or another microcontroller—can query the endpoints. Ideal for prototyping IoT dashboards, automating lab data collection, or building a personal weather station that integrates with school projects.
What You'll Build
You'll assemble a sensor node powered by an ESP32, write the firmware to handle GET requests, and watch your browser display live environmental data as JSON. Once built, you can expand the API with additional endpoints or connect it to a database—laying the foundation for full-stack IoT applications.
What You'll Learn
- Configure ESP32 as a WiFi station and set up a lightweight HTTP server
- Read DHT22 temperature/humidity, HC-SR04 ultrasonic distance, and LDR light intensity
- Parse sensor values into JSON and define RESTful GET endpoints
- Test and debug APIs using a browser or tools like Postman, and handle concurrent client requests
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 Temperature & Humidity Sensor | 1 |
| HC-SR04 Ultrasonic Distance Sensor | 1 |
| LDR (Light Dependent Resistor) | 2 |
| 10kΩ Resistors (1/4W) | 10 |
| 4.7kΩ Resistors (1/4W) | 5 |
| 400-Point Solderless Breadboard | 1 |
| Male-to-Male Jumper Wires | 20 |
| Micro USB Cable (Data+Power) | 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 intermediate makers: CBSE Class 11-12 students exploring IoT in their computer science projects, B.Tech ECE/EEE undergraduates building API-driven sensor networks, and ATL Tinkering Lab participants preparing for the Smart India Hackathon. If you’ve already worked with Arduino and want to step into connected devices, this kit bridges that gap with hands-on REST API development.
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 to open the AI companion trained on this exact kit; you can ask code-level questions, get wiring diagrams, and troubleshoot step-by-step. You can also reach us on WhatsApp for human support.
How do I access the JSON endpoints once the server is running?
After uploading the provided firmware, the ESP32 prints its IP address on the serial monitor. Open a browser on any device connected to the same WiFi, navigate to http://[ESP32_IP]/api/sensors, and you’ll see live JSON output.
Can I add more sensors or endpoints later?
Absolutely. The kit’s modular design and the AI companion include guidance on expanding the API—adding an LDR endpoint, a POST route for controlling outputs, or integrating an OLED display. The breadboard gives you space to prototype.
Is this suitable for a Smart India Hackathon or ATL competition?
Yes, many participants use our kits to quickly prototype IoT solutions. The REST API approach is highly relevant for dashboard and mobile app integration, a common requirement in hackathons.
ESP32 serves a REST API with GET endpoints returning sensor JSON. Any client can query over local WiFi.
What's in this kit
- ESP32 Dev Board
- DHT22
- HC-SR04
- LDR x2
- 10kΩ Resistors x10
- 4.7kΩ Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- Micro USB Cable
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