@corbinneville84: One of the SMALLEST spectrum analyzers out there 👀. Raspberry Pi Zero 2 W + RTL-SDR + Adafruit 1.3” TFT bonnet + PiSugar 1200 mAh = a fully self-contained RF scanner. On boot it auto-launches a custom Python script, grabs I/Q from the RTL-SDR, does an FFT, and draws a live spectrum + mini waterfall on that tiny OLED. Controls: D-pad = slide left/right across the band in real time. Bottom-right button = cycle band presets (FRS/GMRS, 2m ham, airband, NOAA WX, etc.). Top-right button = peak-hold toggle so strong signals leave a trace. Top-right corner = live PiSugar battery % pulled over I²C. So I can walk around and instantly see who’s talking: GMRS repeaters popping up as tall spikes, 2m noise floor shifting as I move, airband carriers, weather radio, all without a laptop or internet connection. Just the Pi, a battery, and an antenna. This is basically a pocket RF radar for field work, off-grid comms, and quick interference hunts and it lives on a 1.3” screen. #raspberrypi #pizero #rtlsdr #spectrumanalyzer #rfscanner

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Wednesday 26 November 2025 14:51:48 GMT