Greenhouse Climate Monitor Kit with ESP32 + DHT22 v16
Build a Remote Greenhouse Climate Alert System Using ESP32-C3 and BLE Sensor Tags
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Growers know that a few degrees of unexpected heat or a humidity spike can damage an entire crop. With this kit, you prototype a wireless monitoring solution that puts real-time greenhouse climate data in your hands—no subscription required. Four standalone sensor tags, each with a DHT22, use Bluetooth Low Energy to push readings to one central ESP32-C3 gateway. That gateway posts everything to an MQTT broker over Wi-Fi, so you can check conditions on a phone dashboard from anywhere.
What You'll Build
You will assemble four battery-powered sensor nodes that measure temperature and humidity, mount them inside small ABS enclosures, and program a fifth ESP32-C3 to act as a BLE scanner and MQTT client. The gateway collects data packets from each tag, timestamps them, and publishes to your chosen MQTT topic. By the end, you’ll have a working, scalable sensor mesh that mirrors the layout of a small polyhouse or indoor farm—ready to extend with light, soil moisture, or CO2 sensors later.
What You'll Learn
- Program BLE advertising and scanning on ESP32-C3 microcontrollers
- Configure MQTT publish/subscribe over Wi-Fi for remote telemetry
- Interface DHT22 digital temperature-humidity sensors and interpret data
- Solder and wire TP4056 charging modules with LiPo batteries for portable power
- Design modular electronics in PCB prototype boards and enclosures
Kit Contents
| Component | Quantity |
|---|---|
| ESP32-C3 Super Mini | 5 |
| DHT22 | 4 |
| 3.7V LiPo 500mAh | 4 |
| TP4056 Module | 4 |
| 10kΩ Resistors | 15 |
| ABS Enclosure Box | 5 |
| PCB Prototype Board | 5 |
| Micro USB Cable | 5 |
| 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
This intermediate project fits CBSE Class 11-12 students preparing IoT practicals, B.Tech ECE/EEE undergraduates working on agriculture automation assignments, and Smart India Hackathon teams prototyping for the smart farming track. ATL Tinkering Lab mentors also use it to demonstrate BLE mesh concepts, and hobbyists at institutions like VIT, BITS, or NIT find it a solid foundation for precision agriculture sensor networks.
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 walks you through each wiring and coding step. You can also message us on WhatsApp for a direct engineer reply.
Do I need soldering experience to build the sensor nodes?
Basic through-hole soldering is required for the TP4056 charging circuit and sensor connections. The included iron and solder wire are enough for a beginner to learn; the AI guide includes clear soldering videos for each joint.
Can I view the greenhouse data on my phone?
Yes. Once the gateway ESP32 publishes to an MQTT broker, you can subscribe with any MQTT dashboard app (like IoT MQTT Panel) on Android or iOS. The AI companion shows you how to set up topics and display gauges.
What MQTT broker should I use, and is the internet required all the time?
The kit works with free public brokers like test.mosquitto.org or a local broker on your home network. Wi-Fi is needed only for the gateway; sensor tags run on BLE and LiPo batteries, so they continue logging even if internet drops temporarily.
Greenhouse — Four ESP32-C3 sensor tags send BLE data to one ESP32-C3 gateway which posts all to MQTT over WiFi.
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.
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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