ESP32 Solar Powered Field Sensor Kit with ESP32 + DHT22
ESP32 Solar Powered Field Sensor Kit: Build a Self-Sustaining Environmental Monitor
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine placing a field sensor in a remote location—monitoring soil moisture and ambient temperature without ever changing batteries. This kit guides you through building a solar-charged ESP32 device that deep sleeps between readings, waking only to transmit DHT22 and soil moisture data to an MQTT server. Perfect for agricultural drone projects, environmental science fair entries, or Smart India Hackathon prototypes, you’ll create a low-power sensing node that runs indefinitely on sunlight.
What You'll Build
You'll assemble a complete, field-deployable monitoring station. On wake, the ESP32 reads DHT22 temperature and humidity along with soil moisture levels, publishes the data to an MQTT broker, and then returns to deep sleep to conserve battery. The result is a rugged sensor unit that can sit in a farm or garden, feeding real-time environmental data to a cloud dashboard.
What You'll Learn
- Configuring ESP32 deep sleep and wake-up timers for ultra-low-power operation
- Interfacing DHT22 and a resistive soil moisture sensor via analog input
- Charging 18650 batteries with a TP4056 module and solar panel, including diode protection circuits
- Publishing sensor data to an MQTT broker over Wi-Fi and monitoring remotely
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| Soil Moisture Sensor | 1 |
| Solar Panel 6V 2W | 1 |
| TP4056 Module | 1 |
| 18650 Cell | 2 |
| 18650 Holder | 1 |
| 10kΩ Resistors | 5 |
| 1N5819 Diode | 3 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
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
Ideal for CBSE Class 11–12 students building IoT-based agriculture projects, B.Tech ECE/EEE undergraduates prototyping for Smart India Hackathon, and ATL tinkering lab members exploring renewable energy and sensor networks. If you've worked with Arduino and want to step up to ESP32 with power management and MQTT, this kit provides the exact hardware and guidance you need.
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, and if you need a human, our WhatsApp support replies within hours.
Can I use this kit for a remote farm without Wi-Fi?
While the ESP32 uses Wi-Fi for MQTT, the build teaches core sensor node principles; you can later adapt it with a GSM module or log data locally to an SD card (not included).
How do I view the sensor data on my phone?
Once the data reaches an MQTT broker, any MQTT client app or dashboard like Node-RED can display graphs; the companion covers basic broker setup.
Does the kit include a waterproof enclosure?
No, the breadboard and electronics are not weatherproof. We recommend using a 3D printed or IP65 box and extending the sensor leads for outdoor field use.
Solar charged ESP32 deep sleeps between readings. DHT22 + soil moisture posted to MQTT on wake.
What's in this kit
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