JARU IDE - IoT Development Environment | JARU

The software provides an all‑in‑one development environment for ESP32‑based IoT projects, featuring a custom language called JARU. It includes a code editor with autocomplete, a project explorer, and dockable panels, allowing users to write, compile, and manage code within a single window. A visual debugger offers breakpoints, step‑by‑step execution, and a watch window, while a one‑click flash tool and integrated serial monitor handle deployment to ESP32 devices without requiring command‑line interaction.

In addition to code editing, the IDE bundles graphical tools such as a sprite and image editor, enabling creation of visual assets directly in the environment. Built‑in modules expose common hardware interfaces—GPIO, Wi‑Fi, MQTT, I²C, displays, and more—alongside a GPIO simulator that emulates LEDs, potentiometers, signal generators, oscilloscopes, and temperature sensors on Windows.

The JARU language follows a clean syntax with support for classes, closures, a garbage collector, and type inference, aiming for familiarity and practicality. The project targets hobbyists and developers who enjoy experimenting with hardware and prefer a lightweight, integrated toolchain over more complex professional suites. It is distributed for free and runs on Windows, with the ESP32 as the deployment target.