Banned Book Library hacks smart bulbs
Banned Book Library is an open-source hardware hacking project by Rick Osgood that transforms cheap, off-the-shelf Wi-Fi smart light bulbs into localized digital libraries. By flashing custom ESP32 firmware and using captive portal redirection, the hacked bulbs host and serve a curated collection of ebooks locally without requiring an internet connection.
A brilliant, low-cost fusion of hardware hacking and cyberpunk activism that turns ordinary household items into stealthy censorship-circumvention tools, although restricted by physical storage constraints.
* Hacking the ESP32-C3 partition table dynamically allows repurposing limited embedded flash for user-accessible file storage without needing physical serial connections or soldering.
* The integration of captive portal redirection solves the UX hurdle of offline discovery, automatically presenting the library UI upon Wi-Fi connection.
* Erasing the non-volatile storage (NVS) partition mitigates the security risk of leaking the creator's home Wi-Fi credentials in plaintext.
* The 4MB total flash restriction acts as a forcing function, turning each physical deployment into a curated, personal collection reflective of its creator.
DISCOVERED
2h ago
2026-06-16
PUBLISHED
3h ago
2026-06-15
RELEVANCE
AUTHOR
sohkamyung