Power Line Communication Demo Kit with Arduino Uno + LED
Send Data Between Rooms Using Your Existing 230V Mains Wiring — Arduino Power Line Communication Demo Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This kit turns any two power sockets in your home into a private data channel, demonstrating exactly how power line communication (PLC) works. Using two Arduino Unos and a pair of KQ-330 PLC modules, you will transmit messages or sensor readings across rooms on the same mains phase — no additional wiring or radio signals required. It’s a hands‑on way to explore the backbone technology behind smart meters, home automation, and industrial communication over existing electrical infrastructure.
What You’ll Build
By the end, you’ll have a fully functional point‑to‑point PLC link. Press a button on the transmitter Arduino in one room, and a message appears on the OLED display connected to the receiver Arduino in another — confirming that data traveled over the 230 V AC line. You can then extend the setup to send temperature sensor values, simple on/off commands, or short text strings, gaining real insight into how PLC modems handle noise and phase coupling in a residential environment.
What You’ll Learn
- How power line communication modems modulate digital data onto AC mains using frequency‑shift keying
- Arduino UART serial communication with KQ‑330 PLC modules, including baud rate and packet framing
- Interfacing 0.96‑inch OLED displays and tactile buttons across a noisy electrical channel
- Troubleshooting real‑world issues like line noise, phase coupling, and signal attenuation in 230 V wiring
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 2 |
| KQ-330 PLC Module | 2 |
| 0.96in OLED | 2 |
| Tactile Button | 2 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 2 |
| M-M Wires | 20 |
| 9V Battery Snap | 2 |
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 designed for CBSE Class 11–12 students exploring communication systems, B.Tech ECE/EEE undergraduates seeking a ready‑made PLC mini‑project, and participants in Smart India Hackathon or college robotics events who need reliable data transfer over existing power lines without adding wireless modules. ATL tinkerers and hobbyists from IIT/NIT/VIT/BITS will also find it a satisfying challenge that demystifies how smart meters and home automation use mains wiring.
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 box to open your AI companion, which walks you through each connection, code upload, and test. If you need a human touch, our WhatsApp support is also included at no extra cost.
Can this kit work between rooms on different electrical phases?
The KQ‑330 modules are designed for single‑phase communication. If both sockets are on the same phase, the link works reliably. Cross‑phase coupling can sometimes succeed but introduces strong attenuation; the build guide shows how to test phasing safely.
Is 230 V AC safe for a student to handle?
Only the KQ‑330 module’s factory‑isolated coupling transformer interfaces with the mains; the rest of your circuit runs on low‑voltage DC from the Arduino. The guide includes strict safety notes, and the module itself is sealed — you never touch the high‑voltage side.
What data can I send over this PLC link?
Through the Arduino’s serial monitor, you can transmit text strings, sensor readings (temperature, light), or control commands. The demo code sends button‑press events that instantly appear on the receiver’s OLED. You can easily adapt it to build a home automation control panel or a remote sensor network.
KQ-330 PLC modem on Arduino sends data over 230V mains wiring between two rooms without RF.
What's in this kit
- Arduino Uno R3 x2
- KQ-330 PLC Module x2
- 0.96in OLED x2
- Tactile Button x2
- 10kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard x2
- M-M Wires x20
- 9V Battery Snap x2
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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