I Built a Radio That Turns Signals Into Pictures

Fennec started because every SI4732 radio project I looked at did the exact same thing. Small screen, a dial, maybe an encoder. Fine radios. All of them stopping at “tune and listen.” I wanted mine to actually do something with what it hears. Pull pictures out of shortwave. Read Morse off the air. Point me toward a transmitter using nothing but a signal meter and my own two feet. This post is the complete rundown. Hardware, flashing, every tool, and what’s still coming. The Hardware At the center is the SI4732-A10, talking to the main chip over I2C. It covers long wave and medium wave from 153kHz up through 27.9MHz on AM, and 64 to 108MHz on FM. That’s the whole broadcast world, plus amateur shortwave stretches and CB. It doesn’t do airband, weather radio, VHF, UHF, or anything above 28MHz, that’s outside what this chip was built for. Running everything is an ESP32-S3, handling the UI, all five decoder tools, and the web server, all at once. • ILI9341 TFT with XPT2046 touch, run in…