Screw this light bulb in and it serves banned books

Connect to an open WiFi network, and a captive portal opens a shelf of banned ebooks. The access point is a smart light bulb. Rick Osgood reflashed the ESP32 chip inside with custom firmware, rewrote the partition table to carve out 2MB of the 4MB flash for storage, and built a web server that runs entirely off the bulb's power. — Read the rest

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