Espressif Esp Component Registry

Discover, download and publish components and examples for ESP-IDF The IDF Component Manager is a tool that allows developers to manage components for the ESP-IDF development framework. The tool is compatible with ESP-IDF versions 4.1 and later, and is included by default starting with ESP-IDF version 4.4. The ESP Component Registry is a central repository for components that can be used with the ESP-IDF. It is hosted at https://components.espressif.com and provides a convenient way for developers to discover and download components for their projects. With the IDF Component Manager, developers can easily install components from the ESP-IDF Component Registry, streamlining the process of adding new functionality to their projects.

© Copyright 2023, Espressif Systems (Shanghai) Co., Ltd.. Revision e840b18c. October 12, 2024 | Michael Kellner, Embedded Engineer The ESP Component Registry is a central repository of components designed for the ESP‑IDF. Hosted by Espressif, creator of the ESP32, the Registry contains a wealth of ready-to-go software components for the ESP32 family of microcontrollers. You can easily embed components from the Registry in your Embedded JavaScript projects by adding it to your project's Moddable SDK manifest.

This accelerates the process of integrating new software capabilities for Embedded JavaScript developers on ESP32. This article walks you through adding a component from the Registry to your project and explains how to wrap a JavaScript API around the component. The Moddable SDK port for ESP32 is implemented using components built into the ESP‑IDF. For example, support for SPI, I²S, and timers are necessary to draw graphics to the display, play audio, and animate sprites. Additional components from Espressif and community supplied components are available to the ESP‑IDF through the ESP Component Registry. JavaScript APIs in the Moddable SDK are provided by standard JavaScript modules.

JavaScript modules in the Moddable SDK are implemented using JavaScript or C. Implementing in C allows us to integrate existing native code into the Moddable runtime. However, in the past it has been complex to add existing native code to Moddable SDK builds on ESP32, oftentimes requiring the modification of makefiles and build scripts. This has been an impediment to integrating some capabilities. This documentation covers the IDF Component Manager and the ESP Component Registry. The Component Manager integrates with ESP-IDF to download and manage components from the Registry, and it also provides the compote CLI for advanced workflows.

The ESP Component Registry (components.espressif.com) is the central repository for ESP-IDF-compatible components. © Copyright 2023-2025, Espressif Systems (Shanghai) Co., Ltd.. When starting a new project, we often reuse existing code, for example from libraries and drivers. This not only saves time but also makes your project easier to maintain. In this article, we will explore what the ESP Component Registry is and the key concepts of components, making it easy to understand not only how to use components but also how to contribute. The architecture of ESP-IDF is modular, making it easier to understand and maintain.

Such modules are called components, as opposed to libraries, because they are self-contained and can also communicates with other components. Components are used on top of the ESP-IDF core. There are three concepts that we need to introduce in order to understand the complete solution: component, component manager, and component registry. Let’s go through them one by one. As mentioned above, a component is a self-contained piece of code that offers new functionality and can be added to an application. In most cases, components are used in multiple applications, making it easy to reuse code, improve the efficiency, and reduce development complexity.

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