Introducing MicroEJ SDK
MicroEJ SDK provides tools based on Eclipse to develop software applications for MicroEJ-ready devices. MicroEJ SDK allows application developers to write MicroEJ Applications and run them on a virtual (simulated) or real device.
This document is a step-by-step introduction to application development with MicroEJ SDK. The purpose of MicroEJ SDK is to develop for targeted MCU/MPU computers (IoT, wearable, etc.) and it is therefore a cross-development tool.
Unlike standard low-level cross-development tools, MicroEJ SDK offers unique services like hardware simulation and local deployment to the target hardware.
Application development is based on the following elements:
- MicroEJ SDK, the integrated development environment for writing
applications. It is based on Eclipse and is relies on the integrated
Java compiler (JDT). It also provides a dependency manager for
managing MicroEJ Libraries (see MicroEJ Module Manager).
The current distribution of MicroEJ SDK (
19.05) is built on top of Eclipse Oxygen (https://www.eclipse.org/oxygen/).
- MicroEJ Platform, a software package including the resources and tools required for building and testing an application for a specific MicroEJ-ready device. MicroEJ Platforms are imported into MicroEJ SDK within a local folder called MicroEJ Platforms repository. Once a MicroEJ Platform is imported, an application can be launched and tested on Simulator. It also provides a means to locally deploy the application on a MicroEJ-ready device.
- MicroEJ-ready device, an hardware device that will be programmed with a MicroEJ Firmware. A MicroEJ Firmware is a binary instance of MicroEJ runtime for a target hardware board.
Starting from scratch, the steps to go through the whole process are detailed in the following sections of this chapter :
- Download and install a MicroEJ Platform
- Build and run your first application on Simulator
- Build and run your first application on target hardware