Build a Cognitive Radio Spectrum Sensing System with Raspberry Pi 4

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 secondary user transmitter that autonomously scouts the 433 MHz spectrum for white spaces using RTL-SDR and Raspberry Pi 4, then transmits data only when channels are idle—a foundational cognitive radio concept. For final-year engineering projects, hackathon prototypes, or research in dynamic spectrum sharing, this kit gives you a fully functional baseline to explore opportunistic communication without causing interference.

What You'll Build

An autonomous spectrum sensing station that scans the 433 MHz ISM band, identifies unused channels via energy detection, and triggers ESP32-based transmitters to send packets only on detected idle frequencies. You’ll have a real-time dashboard on the Raspberry Pi showing spectrum occupancy and a secondary link that adapts to primary user activity.

What You'll Learn

• Implement energy detection spectrum sensing algorithms using Python and GNU Radio on Raspberry Pi 4
• Configure RTL-SDR for broadband spectrum capture and real-time FFT analysis
• Program ESP32 nodes to act as secondary users with channel switching logic based on sensing inputs
• Evaluate cognitive radio performance metrics like detection probability and false alarm rate

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Final-year B.Tech ECE/EEE students tackling communication or networking capstone projects who need a ready-to-run cognitive radio testbed. Smart India Hackathon teams prototyping dynamic spectrum access solutions for 5G or IoT coexistence. Researchers at IITs, NITs, VIT, or BITS Pilani requiring a reproducible experimental setup for spectrum sensing papers.

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.