{"product_id":"kit-power-line-communication-demo","title":"Power Line Communication Demo Kit with Arduino Uno + LED","description":"\u003ch1\u003eSend Data Between Rooms Using Your Existing 230V Mains Wiring — Arduino Power Line Communication Demo Kit\u003c\/h1\u003e\n\n\u003cp class=\"value-summary\"\u003eEvery part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.\u003c\/p\u003e\n\n\u003cdiv class=\"specs-strip\"\u003e\n  \u003cspan\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Intermediate\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eBuild Time:\u003c\/strong\u003e 4-5 hrs\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 15-18\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Power line communication \u0026amp; embedded messaging\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You’ll Build\u003c\/h2\u003e\n\u003cp\u003eBy 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.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You’ll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHow power line communication modems modulate digital data onto AC mains using frequency‑shift keying\u003c\/li\u003e\n  \u003cli\u003eArduino UART serial communication with KQ‑330 PLC modules, including baud rate and packet framing\u003c\/li\u003e\n  \u003cli\u003eInterfacing 0.96‑inch OLED displays and tactile buttons across a noisy electrical channel\u003c\/li\u003e\n  \u003cli\u003eTroubleshooting real‑world issues like line noise, phase coupling, and signal attenuation in 230 V wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino Uno R3\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eKQ-330 PLC Module\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e0.96in OLED\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTactile Button\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10kΩ Resistors\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e100nF Caps\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e400-pt Breadboard\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM-M Wires\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e9V Battery Snap\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Buy This Kit Instead of Sourcing Parts Separately\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003cth\u003eSourcing Separately\u003c\/th\u003e\n\u003cth\u003eCompoden Kit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompatibility checks\u003c\/td\u003e\n\u003ctd\u003eYou verify every part\u003c\/td\u003e\n\u003ctd\u003ePre-tested as a system\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBuild support\u003c\/td\u003e\n\u003ctd\u003eForums and scattered tutorials\u003c\/td\u003e\n\u003ctd\u003eAI companion trained on this exact project\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTime to first working build\u003c\/td\u003e\n\u003ctd\u003eDays of debugging\u003c\/td\u003e\n\u003ctd\u003eHours, with step-by-step guidance\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eShipping coordination\u003c\/td\u003e\n\u003ctd\u003eMultiple sellers, multiple delays\u003c\/td\u003e\n\u003ctd\u003eOne shipment from Bengaluru in 3-5 days\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery 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.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWhat if I get stuck during the build?\u003c\/summary\u003e\u003cp\u003eScan 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.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan this kit work between rooms on different electrical phases?\u003c\/summary\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs 230 V AC safe for a student to handle?\u003c\/summary\u003e\u003cp\u003eOnly 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.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat data can I send over this PLC link?\u003c\/summary\u003e\u003cp\u003eThrough 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.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eKQ-330 PLC modem on Arduino sends data over 230V mains wiring between two rooms without RF.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/uno-r3-ch340g-atmega328p-board-arduino-compatible\"\u003eArduino Uno R3\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003eKQ-330 PLC Module x2\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/096in-oled-display-128x64-i2cspi-for-arduino-raspberry-pi\"\u003e0.96in OLED\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/tactile-button-pack-10x-6mm-switches-with-colored-caps-compoden\"\u003eTactile Button\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/resistor-variety-pack-100-pcs-10-values-14w-carbon-film\"\u003e10kΩ Resistors\u003c\/a\u003e x5\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/capacitor-variety-pack-6-values-100nf-to-470uf-30-pieces\"\u003e100nF Caps\u003c\/a\u003e x5\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/breadboard-standard-bundle-830400-tie-points-for-prototyping\"\u003e400-pt Breadboard\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003eM-M Wires x20\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/9v-battery-snap-connector-with-15cm-wires-compoden\"\u003e9V Battery Snap\u003c\/a\u003e x2\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is included in the Power Line Communication Demo Kit with Arduino Uno + LED?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Power Line Communication Demo Kit with Arduino Uno + LED includes all components needed: Arduino Uno R3, KQ-330 PLC Module, 0.96in OLED, Tactile Button, 10kΩ Resistors and more. Everything is pre-tested for compatibility and shipped from Bengaluru, India.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What skill level is required for the Power Line Communication Demo Kit with Arduino Uno + LED?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Intermediate level makers, suitable for ages 15-18. KQ-330 PLC modem on Arduino sends data over 230V mains wiring between two rooms without RF. Estimated build time is 4-5 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Power Line Communication Demo Kit with Arduino Uno + LED online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Power Line Communication Demo Kit with Arduino Uno + LED is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. 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