ESP32 Camera Streamer

This example shows a BoxLang script calling native Rust functions for cameraInit(), cameraTake(), and serialWrite(). The script sends ten byte arrays over the serial interface.

[!warning] Camera capture is simulated The current Rust implementation does not initialize an ESP32 camera or capture real frames. cameraInit() reports simulated success, and cameraTake() returns a fixed ten-byte sample. Only serialWrite() writes the supplied bytes to UART0.

The example is useful for exploring how a Rust runner can register native BIFs for BoxLang code. It is not a working camera firmware project.

Build

A native/ directory next to the entry script makes MatchBox build a Native Fusion runner for the board. That runner executes the compiled script directly instead of serving routes:

source /path/to/esp-idf/export.sh
export RUSTUP_TOOLCHAIN=esp
matchbox main.bxs --target esp32 --chip esp32s3 --full-flash

The native code calls esp_idf_sys, so the project needs the ESP toolchain from the ESP32 guide. That guide also covers the routed app model and the real camera functions (esp32CameraCapture() on esp32s3). For a project that serves pages, start from the regular ESP32 example.