# Wio Link

Contents

- Wio Link

  - Hardware

  - Configuration

  - Uploading

  - Debugging

  - Frameworks

## Hardware

Platform Espressif 8266: Espressif Systems is a privately held fabless semiconductor company. They provide wireless communications and Wi-Fi chips which are widely used in mobile devices and the Internet of Things applications.

Microcontroller | ESP8266
Frequency | 80MHz
Flash | 4MB
RAM | 80KB
Vendor | SeeedStudio

## Configuration

Please use `wio_link` ID for board option in “platformio.ini” (Project Configuration File):

    [env:wio_link]
    platform = espressif8266
    board = wio_link

You can override default Wio Link settings per build environment using `board_***` option, where `***` is a JSON object path from board manifest wio_link.json. For example, `board_build.mcu`, `board_build.f_cpu`, etc.

    [env:wio_link]
    platform = espressif8266
    board = wio_link

    ; change microcontroller
    board_build.mcu = esp8266

    ; change MCU frequency
    board_build.f_cpu = 80000000L

## Uploading

Wio Link supports the next uploading protocols:

- `espota`

- `esptool`

Default protocol is `esptool`

You can change upload protocol using upload_protocol option:

    [env:wio_link]
    platform = espressif8266
    board = wio_link

    upload_protocol = esptool

## Debugging

PIO Unified Debugger currently does not support Wio Link board.

## Frameworks

Name | Description
--- | ---
Arduino | Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.
ESP8266 Non-OS SDK | The non-OS SDK provides a set of application programming interfaces (APIs) for core ESP8266 functionalities such as data reception/transmission over Wi-Fi, TCP/IP stack functions, hardware interface functions and basic system management functions.
ESP8266 RTOS SDK | ESP8266 SDK based on FreeRTOS, a truly free professional grade RTOS for microcontrollers