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JSON Paper wiki

JSON Paper displays server-generated JSON on a four-color, 792 × 272 e-paper display. The firmware and desktop emulator share drawing handlers; PHP and Java libraries build the JSON documents.

Start here

1. Follow Hardware and Setup to wire and flash the ESP32-C5.
2. Configure WiFi, the JSON endpoint, and a refresh schedule using Arduino Overview.
3. Serve a document from Examples, or generate one with the PHP Library or Java Library.
4. Preview an endpoint with the Emulator.

Protocol reference

• Protocol Overview and Protocol Structure
• Command Reference
• Draw Text and Fonts
• Color Palette and Image Encoding
• Renderer Notes

Implementation references

• Arduino/src/e-paper/paper_command.cpp
• Server/hello-world.json