Wireless Sensor Data Bridge with Arduino & HC-05 Bluetooth Kit
Build a Wireless Sensor Data Bridge with Arduino & HC-05 Bluetooth Modules
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Send real-time temperature and humidity readings from one Arduino to another over a Bluetooth serial link-no wires, no Wi-Fi, just pure wireless UART. This intermediate kit transforms two Arduino Unos into a reliable sensor data bridge using HC-05 modules, perfect for ECE lab assignments and IoT prototyping. Master the same serial protocol that underpins countless embedded systems, then monitor the incoming data on a crisp 16x2 LCD. Everything you need comes pre-tested as a single system, so you spend your hours learning, not debugging component mismatches.
What You'll Build
A wireless sensor station that transmits DHT22 environment data from a remote Arduino to a base unit, where readings display on a 16x2 LCD. This is the foundation for wireless telemetry, remote monitoring, and IoT sensor networks-essential for modern electronics engineering. You'll walk away with a working demo that can be extended for college projects, hackathons, or your own home sensor dashboard.
What You'll Learn
- Configure HC-05 Bluetooth modules in master-slave mode for transparent UART communication
- Transmit sensor data wirelessly between two Arduinos using Serial.read() and write()
- Integrate an I2C LCD backpack for clear data display without complex wiring
- Debug serial communication issues and verify data integrity over Bluetooth
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 2 |
| HC-05 Bluetooth | 2 |
| DHT22 | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| USB Cable | 2 |
| Half Breadboard | 2 |
| M-M Wires | 30 |
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 is ideal for B.Tech ECE and EEE students tackling wireless communication labs, Smart India Hackathon teams building IoT prototypes, and CBSE Class 11-12 students exploring advanced Arduino projects. It suits anyone who's moved beyond blink sketches and wants to understand real-world serial protocols. ATL Tinkering Labs and NIT/VIT/BITS student clubs will also find it a ready-made module for group workshops.
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 on the kit box to access the AI companion that's been trained on every step of this wireless bridge setup, or ping us on WhatsApp for a human backup within hours.
Can I use this kit for a college project submission?
Absolutely-the Bluetooth serial data bridge is a complete working prototype that demonstrates core wireless communication concepts. You can extend it with additional sensors or a mobile app interface for a standout submission.
Do I need prior experience with Bluetooth modules?
No. The included guide walks you through AT commands and master-slave pairing; if you've worked with Arduino Serial Monitor before, you're ready.
What if a component fails during the first week?
Contact us within 7 days of delivery and we'll replace any manufacturing-defective part free. Your time is better spent building than waiting.
HC-05 Bluetooth module creates wireless UART bridge between two Arduinos - send sensor data without cables.
What's in this kit
- Arduino Uno R3 x2
- HC-05 Bluetooth x2
- DHT22
- 16x2 LCD
- I2C Backpack
- USB Cable x2
- Half Breadboard x2
- M-M Wires x30
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
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