Handheld Sub-GHz RF Multi-Tool - Custom Embedded Spectrum Analyzer
A live demo of a custom-built handheld RF multi-tool engineered in-house for sub-GHz diagnostics and embedded development. The device pairs an ESP32 microcontroller with a CC1101 sub-GHz transceiver and an SMA antenna, all housed in a compact 3D-printed case with a colour TFT display and a carousel UI. From the RF menu it offers a real-time spectrum analyser, Scan/Copy, Simulate, Custom Sub-GHz and SquareWave tools. In the clip the spectrum view is centred on the 433.92 MHz ISM band (432.9-434.9 MHz) and the live waveform reacts as a 433 MHz remote is exercised nearby - letting an engineer see exactly which frequency a device transmits on and how clean its signal is. It's a practical bench instrument for testing remotes, sensors and IoT radios, and a showcase of our hardware capability: custom PCBs, RF front-ends, firmware and enclosure design delivered as one integrated product.