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Detailed referenceWendy Lite

Wendy Lite Repository

The wendy-lite source code lives in wendylabsinc/wendy-lite — the Swift SDK, Rust crate, C headers, and ESP-IDF firmware component all live in this single repo.

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Wendy Lite Repository

The wendy-lite source code lives in wendylabsinc/wendy-lite — the Swift SDK, Rust crate, C headers, and ESP-IDF firmware component all live in this single repo.

Repository Layout

wendy-lite/
  Sources/
    CWendyLite/
      include/wendy.h        Host-function declarations (WASM import attributes)
      shim.c                 Thin C shim for Swift interop
    WendyLite/               Swift SDK (SwiftPM library target)
      WendyLite.swift        Re-exports CWendyLite
      WendyLiteApp.swift     @main protocol + async runtime bootstrap
      WendyClock.swift       Embedded-Swift async clock + TimerHub
      CallbackDispatch.swift Handler registry + wendy_handle_callback export
      GPIO.swift             GPIO types and wrapper enum
      I2C.swift              I2C wrapper
      SPI.swift              SPI wrapper
      UART.swift             UART wrapper
      RMT.swift              RMT (remote control) wrapper
      NeoPixel.swift         NeoPixel/WS2812 wrapper
      Timer.swift            Low-level timer wrapper
      Network.swift          WiFi, Net (sockets), DNS, TLS wrappers
      BLE.swift              BLE, GATTS, GATTC wrappers
      OTel.swift             OpenTelemetry log/metrics/tracing wrapper
      Storage.swift          NVS key-value wrapper
      System.swift           System + Console wrappers
      USB.swift              USB CDC + HID wrapper
  src/lib.rs                 Rust crate (no_std FFI + safe wrappers)
  CMakeLists.txt             ESP-IDF component CMake (firmware build)
  Package.swift              SwiftPM package (Swift SDK)
  Cargo.toml                 Cargo package (Rust crate)
  .github/workflows/
    build.yml                Matrix firmware build + nightly/release publishing

CI and Releases

Wendy publishes installable firmware variants through its stable and nightly release channels. wendy install reads the current firmware catalog and only presents board variants that have a published binary for the selected channel.

Native Apps for Wendy Lite

Wendy Lite is a runtime for Espressif ESP32 microcontrollers. It handles your device's connectivity and lets you write your own native applications, build them, and deploy them to

Wendy Lite StdIO

On Wendy Lite, a WASM app can print data to the standard output. When developed in Swift, the app typically uses print() to do so.

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Wendy Lite RepositoryRepository LayoutCI and Releases