ESPNOW Star Network Kit - Build 5-Node Sensor System with ESP32 & TFT
Build a Live 5-Node ESP-NOW Sensor Dashboard with ESP32 and TFT Display
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Deploy a real-time wireless sensor network that monitors temperature, humidity, and soil moisture across five distinct zones - all visible on a single TFT dashboard. This advanced kit gives you everything to build a true star topology using ESP-NOW, the low-latency protocol that leaves Bluetooth and Wi-Fi behind for sensor arrays. It's the ideal backbone for smart agriculture prototypes, campus IoT projects, or mastering mesh communication at the packet level.
What You'll Build
You'll create five battery-powered ESP32 sensor nodes, each transmitting DHT22 temperature/humidity and soil moisture readings over ESP-NOW to a central gateway. The gateway ESP32 aggregates this multi-source data and updates all 10+ live sensor values on a crisp 1.8-inch TFT screen. The entire network is peer-to-peer, with no router required, and can be deployed indoors or across a field.
What You'll Learn
- ESP-NOW communication protocol, packet structure, and MAC-based addressing
- Designing a robust star network topology with one-to-many data flow
- Precision interfacing of DHT22, capacitive soil moisture sensors, and TFT displays on ESP32
- Power management for 18650-powered edge nodes and data aggregation techniques
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 6 |
| DHT22 | 5 |
| Soil Moisture Sensor | 3 |
| 1.8in TFT ST7735 | 1 |
| 4.7k? Resistors | 10 |
| 100nF Caps | 20 |
| 18650 Cell | 5 |
| 18650 Holder | 5 |
| PCB Prototype Board | 6 |
| 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
B.Tech ECE/EEE students taking on IoT lab assignments or Smart India Hackathon challenges will find this kit exactly matches advanced wireless sensor requirements. ATL Tinkering Lab mentors guiding college-level projects and IIT/NIT/VIT/BITS research interns prototyping data-acquisition networks will appreciate the ready-to-assemble, node-specific components and AI-powered troubleshooting.
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 inside the box to launch the AI build companion, which provides step-by-step guidance and real-time code checks. You can also send photos to our WhatsApp support, where a Compoden engineer often responds within a few hours.
Can I expand this network to more than five sensor nodes?
Yes, the ESP-NOW star topology supports up to 20 peers. The gateway code is structured with a static array that you can extend by adding MAC addresses and sensor IDs; the AI companion will walk you through the modification.
Does the kit include code for the nodes and gateway?
Absolutely. The AI companion delivers a fully commented Arduino sketch for both the sensor nodes and the central TFT gateway, pre-configured for all six ESP32 boards. You can tweak parameters like transmission intervals directly inside the companion or IDE.
What if I want to log data instead of just displaying it on the TFT?
The gateway firmware includes a serial-out option that streams all received sensor data via UART. The AI companion shows how to capture this data on a connected laptop or add an SD card module (not included) for local logging.
Five ESP32 sensor nodes transmit to one gateway node over ESP-NOW. Gateway aggregates and displays all readings on TFT.
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