ESP32-C3 Ultra Low Power Node Kit with ESP32 + DHT22
ESP32-C3 Ultra Low Power Node Kit with DHT22 — Build a 6-Month Coin Cell Battery Life Sensor Node
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 room temperature logger that runs for six months on a single charge, waking only to sample and transmit. Ideal for school science projects, smart agriculture monitoring, or learning ESP32 low-power techniques. You'll build a functional IoT node with genuine industrial-grade components, no soldering required.
What You'll Build
You'll assemble a compact sensor node that reads temperature and humidity using the DHT22, then transmits data wirelessly before returning to deep sleep. The result is a fully operational IoT device that can be deployed in a classroom, greenhouse, or home, demonstrating real-world power efficiency. The circuit fits neatly on the breadboard, with charging and battery protection built in.
What You'll Learn
- Program the ESP32-C3's ULP co-processor to manage deep sleep wake cycles
- Interface the DHT22 digital sensor over a single-wire communication protocol
- Design a low-power circuit with LiPo battery, charging module, and voltage regulation
- Optimize power consumption for months-long battery-operated IoT deployments
Kit Contents
| Component | Quantity |
|---|---|
| ESP32-C3 Super Mini | 1 |
| DHT22 Temperature & Humidity Sensor | 1 |
| 3.7V LiPo Battery 500mAh | 1 |
| TP4056 Li-Ion Charger Module | 1 |
| 10kΩ Resistors | 5 |
| 400-Point Breadboard | 1 |
| M-M Jumper Wires | 15 |
| Micro USB Cable | 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 kit suits CBSE Class 11-12 students pursuing electronics or computer science projects, B.Tech ECE/EEE undergraduates exploring embedded systems, and ATL Tinkering Lab participants working on IoT solutions. It also helps those preparing for Smart India Hackathon prototypes that need months-long battery life.
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 access the AI companion trained on this exact project, or message us on WhatsApp for direct build support in English, Hindi, or Kannada.
Can I use this sensor node outdoors?
Yes, the DHT22 functions from -40°C to 80°C. Enclose the circuit in a weatherproof case and the battery lasts months for remote sensing applications.
How do I extend battery life beyond 6 months?
The kit uses ULP deep sleep by default. You can push wake-up intervals further in code, or switch to a larger mAh LiPo; the AI companion includes example sketches for both.
Is this kit suitable for a science fair project?
Absolutely. Its clear learning path and real-world power metrics make it a standout entry for CBSE science exhibitions, ATL marathons, and college-level hackathons.
ESP32-C3 reads DHT22 in deep sleep wake cycle using ULP co-processor. 6 month coin cell battery life.
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