# ESP-IDF ESP-IDF is Espressif's official IoT development framework and SDK for developing applications on Espressif SoCs, providing toolchains, APIs, components, workflows, and build tooling. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## ESP32-C5 Pico board follows Raspberry Pi Pico form factor, ships with on-board or external antenna DevFeed: [ESP32-C5 Pico board follows Raspberry Pi Pico form factor, ships with on-board or external antenna]() Original publisher: [Read original article]() Author: Jean-Luc Aufranc (CNXSoft) Published: 2026-09-09T07:00:50Z Content type: news Language: en Sources: [CNX Software - Embedded Systems News]() Topics: [ESP32-C5](), [Raspberry Pi](), [Espressif](), [cpu](), [RISC-V](), [SOC](), [Bluetooth](), [wifi 6](), [zigbee](), [Matter](), [Embedded Systems](), [ESP-IDF]() Tags: [802-15-4](), [arduino](), [battery](), [ble](), [bluetooth](), [bluetooth-le](), [boot](), [c-c-plus-plus](), [development-board](), [embedded-systems](), [esp-idf](), [esp32](), [esp32-c5](), [espressif](), [gpio](), [hardware](), [iot](), [matter](), [news](), [port](), [raspberry-pi](), [risc-v](), [thread](), [usb](), [waveshare](), [wifi-6](), [zigbee]() ### AI overview The Waveshare ESP32-C5 Pico is a development board in the Raspberry Pi Pico form factor. It uses an ESP32-C5-MINI-1 series module with a RISC-V processor, dual-band WiFi 6, Bluetooth LE, and 802.15.4 support for Zigbee, Thread, and Matter. The board includes GPIO headers, USB-C, buttons, LEDs, and Li-Ion battery support, with variants offering PCB or external antennas. ### Source excerpt Waveshare ESP32-C5 Pico board brings the ESP32-C5 dual-band WiFi 6, Bluetooth LE, and 802.15.4 (Zigbee/Thread) SoC to the Raspberry Pi Pico form factor. The board features an ESP32-C5-MINI-1 Series module with PCB or external antenna, two 20-pin GPIO headers, a USB-C port for power and programming, Reset and Boot buttons, and a few LEDs. It also supports Li-Ion battery charging and discharging. Waveshare ESP32-C5 Pico specifications: Wireless module - ESP32-C5-MINI-1 or ESP32-C5-MINI-1U Wireless MCU - Espressif Systems ESP32-C5HF4 CPU Single-core 32-bit RISC-V processor @ up to 240 MHz Low-power RISC-V core @ 48 MHz acting as the main processor for power-sensitive applications Memory - 384 KB SRAM on-chip Storage - 320 KB ROM, 4MB SPI flash Wireless Dual-band (2.4/5 GHz) 802.11ax WiFi 6, 802.11b/g/n WiFi 4 backward compatibility WiFi modes: Station mode, SoftAP mode, SoftAP + Station mode, and promiscuous mode Bluetooth 5.0 Low Energy (LE) with Mesh support, up [...] The post ESP32-C5 Pico board follows Raspberry Pi Pico form factor, ships with on-board or external antenna appeared first on CNX Software - Embedded Systems News. ## EU Cyber Resilience Act: Vulnerability Reporting Obligations DevFeed: [EU Cyber Resilience Act: Vulnerability Reporting Obligations]() Original publisher: [Read original article]() Author: John Lee Published: 2026-09-09T00:00:00Z Content type: article Language: en Sources: [Blog on Developer Portal]() Topics: [cyber resilience act](), [Vulnerabilities](), [Espressif](), [ESP32](), [ESP-IDF](), [Security](), [EN 18031]() Tags: [blog](), [cyber-resilience-act](), [en-18031](), [esp-idf](), [esp32](), [espressif](), [eu](), [iot](), [security](), [vulnerability]() ### AI overview This article explains that the Cyber Resilience Act's vulnerability-reporting obligations begin on 11 September 2026 for connected products sold in the EU, including products already on the market. It outlines Article 14 duties, reporting recipients and the role of Espressif's platform layer for products built on ESP32. ### Source excerpt The CRA's vulnerability reporting obligations start on 11 September 2026 and apply to products already on the market, including ones sold years ago. What Article 14 requires, which duties run to whom, how reporting works through the ENISA Single Reporting Platform, and where the Espressif platform layer fits. ## OpenTrailPaper transforms LILYGO T5 E-Paper S3 Pro devkit into a DIY e-paper bike computer DevFeed: [OpenTrailPaper transforms LILYGO T5 E-Paper S3 Pro devkit into a DIY e-paper bike computer]() Original publisher: [Read original article]() Author: Jean-Luc Aufranc (CNXSoft) Published: 2026-09-05T08:01:22Z Content type: news Language: en Sources: [CNX Software - Embedded Systems News]() Topics: [Embedded Systems](), [ESP32-S3](), [Open Source](), [Android](), [iOS](), [Bluetooth](), [ESP-IDF](), [GitHub](), [JavaScript](), [Python](), [web browser]() Tags: [android](), [bluetooth](), [browser](), [core](), [display](), [diy](), [e-ink](), [e-paper](), [epaper](), [esp-idf](), [esp32](), [esp32-s3](), [espressif](), [firmware](), [github](), [gps](), [hardware](), [ios](), [javascript](), [lilygo](), [lora](), [open-source](), [python]() ### AI overview OpenTrailPaper is an open-source DIY e-paper bike computer project for the LILYGO T5 E-Paper S3 Pro, using ESP32-S3 firmware alongside Android and iOS companion apps. It supports ride data, offline maps, GPX routes, FIT file recording, and Bluetooth sensor connections. ### Source excerpt OpenTrailPaper is an open-source, DIY e-paper bike computer project comprised of firmware for the ESP32-S3-based T5 E-Paper S3 Pro devkit and Android and iOS companion apps for maps, routes, and settings. It shows ride data and offline maps, follows standard GPX (GPS Exchange Format) routes, records FIT (Flexible and Interoperable Data Transfer used in Garmin devices) files, and connects to Bluetooth (and soon ANT/ANT+) heart rate, power, and cadence sensors. Before looking into the project's details, let's check out the LILYGO T5 E-Paper S3 Pro specifications: ESP32-S3-WROOM-1 wireless module SoC - ESP32-S3N16R8 dual-core Tensilica LX7 microcontroller @ up to 240 MHz with 2.4 GHz 802.11n WiFi 4 and Bluetooth 5.0 LE connectivity Memory - 8MB PSRAM Storage - 16MB SPI flash PCB antenna Storage - MicroSD card slot Display - 4.7-inch e-Paper display with 960x540 resolution, 16 shades of gray, capacitive touch (GT911); ED047TC1 drive IC Wireless 2.4 GHz 802.11n [...] The post OpenTrailPaper transforms LILYGO T5 E-Paper S3 Pro devkit into a DIY e-paper bike computer appeared first on CNX Software - Embedded Systems News. ## Build connected lighting systems with the ESP DALI component DevFeed: [Build connected lighting systems with the ESP DALI component]() Original publisher: [Read original article]() Author: John Lee Published: 2026-08-28T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [Espressif](), [Embedded Software Dev](), [Internet of things](), [Protocol (disambiguation)](), [API](), [Matter](), [Home Assistant]() Tags: [api](), [architecture](), [blog](), [bridge](), [caching](), [dali](), [esp-idf](), [esp-iot-solution](), [espressif](), [firmware](), [lighting](), [matter](), [mqtt](), [ota](), [security]() ### AI overview This tutorial introduces the ESP DALI component, which implements an IEC 62386 master on Espressif SoCs using the RMT peripheral. It covers DALI control, commissioning, sensors, DT8 color gear, and a Matter-to-DALI bridge. ### Source excerpt The ESP DALI component implements an IEC 62386 master on the RMT peripheral, with support for commissioning, dimming, color control, sensors, and Matter-to-DALI bridges. ## ESP-IDF tutorial series: PWM DevFeed: [ESP-IDF tutorial series: PWM]() Original publisher: [Read original article]() Author: John Lee Published: 2026-08-03T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [Tutorial](), [Espressif](), [configuration]() Tags: [article](), [blog](), [channel](), [configuration](), [conversion](), [devkit](), [esp-idf](), [espressif](), [generate](), [ledc](), [peripheral](), [pwm](), [signal](), [speed](), [tutorial]() ### AI overview This ESP-IDF tutorial explains pulse-width modulation, including duty cycle, switching frequency, and average voltage. It demonstrates PWM generation with the LEDC peripheral on Espressif devices and describes converting PWM to DC with an RC filter, including ripple and response-speed tradeoffs. ### Source excerpt This article explains what a PWM signal is, and how to generate PWM signal using the ledc peripheral on Espressif devices. It covers the LEDC timer and channel configuration, and shows how to convert a PWM signal into a clean DC value using an RC filter, including the tradeoffs between ripple and response speed. ## Recovery Bootloader DevFeed: [Recovery Bootloader]() Original publisher: [Read original article]() Author: John Lee Published: 2026-07-27T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [ESP32-C5](), [Boot Process](), [Security]() Tags: [blog](), [bootloader](), [embedded-systems](), [esp-idf](), [esp32-c5](), [flash](), [ota](), [updates](), [vulnerability]() ### AI overview This article explains how to safely perform bootloader OTA updates with the recovery bootloader feature. It describes keeping a known-good bootloader image in a separate flash location so the device can recover if the primary bootloader becomes invalid. Examples use ESP-IDF v6.1 and ESP32-C5. ### Source excerpt In this article, we will explore how to safely perform OTA updates for the bootloader using the recovery bootloader feature. ## Creating an environmental logger - Part 1 DevFeed: [Creating an environmental logger - Part 1]() Original publisher: [Read original article]() Author: John Lee Published: 2026-07-15T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP32](), [ESP-IDF](), [Logging](), [Terminal](), [Internet of things](), [data](), [Library]() Tags: [article](), [blog](), [esp-idf](), [esp32](), [filesystem](), [how-to](), [i2c](), [iot](), [logging](), [sensor](), [vs-code]() ### AI overview This tutorial explains how to build an environmental logger with an ESP32-C61-Devkit-C, a DHT20 temperature and humidity sensor, and ESP-IDF. Part 1 covers reading the sensor over I2C and storing measurements in a little_fs filesystem on the module's flash memory. ### Source excerpt This article shows how to create a simple environmental logger using the DHT20 sensor and store the data on a little_fs filesystem on the module's flash memory. ## ESPHome 2026.7.0: Native toolchains by default DevFeed: [ESPHome 2026.7.0: Native toolchains by default]() Original publisher: [Read original article]() Author: Jesse Hills Published: 2026-07-15T00:00:00Z Content type: release Language: en Sources: [ESPHome - Smart Home Made Simple - Blog]() Topics: [esphome](), [toolchains](), [ESP32](), [Modbus](), [Security](), [ESP-IDF](), [SDK]() Tags: [2026](), [esp-idf](), [esp32](), [esphome](), [modbus](), [native](), [release](), [releases](), [security](), [toolchains]() ### AI overview ESPHome 2026.7.0 makes native ESP32 and nRF52 toolchains the default, adds security infrastructure including NVS encryption and OTA downgrade protection, and introduces a transport-agnostic provisioning component. The release also overhauls Modbus and includes performance, memory, LVGL, Ethernet, ESP-NOW, Zigbee, and component updates. ### Source excerpt ESPHome 2026.7.0 makes native toolchains the default on ESP32 and nRF52, adds EN18031 security groundwork, and overhauls Modbus. ## ESP-BSP Generator helps create custom-board BSP components from Espressif development kits DevFeed: [ESP-BSP Generator helps create custom-board BSP components from Espressif development kits]() Original publisher: [Read original article]() Author: John Lee Published: 2026-06-30T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [Espressif](), [ESP-IDF](), [Hardware](), [Web](), [Development](), [ESP32-C3](), [ESP32-S3](), [m5stack]() Tags: [apis](), [blog](), [bsp](), [configuration](), [dependency](), [devkit](), [drivers](), [esp-bsp](), [esp-idf](), [esp32](), [esp32-c3](), [espressif](), [hardware](), [m5stack](), [web]() ### AI overview The ESP-BSP Generator is a web tool that helps developers create an ESP-IDF BSP component for a custom board. Users can start from an esp-bsp development kit, customize hardware details such as pins and features, and download a reusable BSP component. ### Source excerpt Start from an esp-bsp dev kit, customize pins and features in a web form, and download a production-style BSP component for your custom PCB - same APIs, less manual work. ## AES67 audio-over-IP on the ESP32-P4 DevFeed: [AES67 audio-over-IP on the ESP32-P4]() Original publisher: [Read original article]() Author: John Lee Published: 2026-06-24T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP32-P4](), [ESP-IDF](), [Ethernet](), [Latency](), [RISC-V](), [Protocol (disambiguation)](), [Toit](), [Raspberry Pi]() Tags: [aes67](), [audio](), [blog](), [esp-idf](), [esp32](), [esp32-p4](), [ethernet](), [hardware](), [ip](), [latency](), [low-latency](), [network](), [networking](), [protocol](), [ptp](), [ravenna](), [risc-v](), [rtp](), [sync]() ### AI overview This article describes implementing a working, PTP-synchronized AES67/RAVENNA audio endpoint on the ESP32-P4 as an ESP-IDF component. It covers clock synchronization, low-latency packet reception, and I2S playout, reporting best-case end-to-end latency of about 0.7 ms and noting which parts are solid or still limited. ### Source excerpt AES67/RAVENNA is the audio transport behind a lot of broadcast and live-sound infrastructure, and it normally runs on dedicated silicon or Linux boxes. This article is about getting a working, PTP-synchronized AES67 endpoint onto an ESP32-P4 -- how the clock sync, the low-latency receive path, and the I2S playout fit together, what the measured latency is, and where the edges are. ## Rust smoltcp as an alternative TCP/IP stack for ESP-IDF DevFeed: [Rust smoltcp as an alternative TCP/IP stack for ESP-IDF]() Original publisher: [Read original article]() Author: John Lee Published: 2026-06-19T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [Rust](), [networking](), [ESP32](), [ESP32-P4](), [HTTP](), [MQTT]() Tags: [blog](), [c](), [concurrency](), [esp-idf](), [esp32-p4](), [ethernet](), [firmware](), [http](), [http-server](), [ipv4](), [ipv6](), [lwip](), [mqtt](), [networking](), [rust](), [smoltcp](), [tcp-ip](), [tls]() ### AI overview This article explains how to run the Rust smoltcp TCP/IP stack as an alternative IPv4/IPv6 data plane under ESP-IDF. It describes a GNU linker --wrap shim that preserves compatibility with ESP-IDF networking components such as esp_http_server, esp-tls and esp-mqtt, along with the single-task poll architecture, measured ESP32-P4 throughput, and known limitations. ### Source excerpt A set of ESP-IDF components that run the Rust smoltcp stack as the IPv4/IPv6 data plane, while keeping esp_http_server, esp-tls and esp-mqtt working without source changes. This article explains the linker -wrap shim that makes it compatible, the single-task poll architecture, the throughput I measured on an ESP32-P4 (91.15 Mbit/s on a 100 Mbit link), and the limitations to be aware of. ## Introducing the esp\_trace component DevFeed: [Introducing the esp\_trace component]() Original publisher: [Read original article]() Author: John Lee Published: 2026-06-01T00:00:00Z Content type: article Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [tracing](), [Instrumentation](), [API]() Tags: [api](), [blog](), [debugging](), [esp-idf](), [freertos](), [instrumentation](), [integration](), [tracing]() ### AI overview This post introduces esp_trace, a new ESP-IDF component for application-level tracing. It separates trace encoding from data transport, allowing trace libraries and supported links to be combined through pluggable components without kernel patches. ### Source excerpt esp_trace is a new ESP-IDF component that splits application-level tracing into pluggable encoders and transports, so adding a new trace library no longer means patching the kernel. This post gives a high-level tour and walks through the example that demonstrates the integration. ## ESP-IDF tutorial series: Wi-Fi Provisioning DevFeed: [ESP-IDF tutorial series: Wi-Fi Provisioning]() Original publisher: [Read original article]() Author: John Lee Published: 2026-05-29T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [Provisioning](), [Wi-Fi](), [Internet of things](), [ESP-IDF](), [Security](), [Authorization](), [Android](), [iOS]() Tags: [android](), [app](), [authorization](), [blog](), [esp-idf](), [ios](), [iot](), [network](), [provisioning](), [security](), [tutorial](), [wi-fi]() ### AI overview This tutorial explains Wi-Fi provisioning for IoT devices using an ESP device. It covers the basic SoftAP flow, including an HTTP server for collecting network credentials through a smartphone, and introduces Espressif's network_provisioning component and ESP SoftAP Prov app. ### Source excerpt This article explains what Wi-Fi provisioning is, introduces the network_provisioning component, and walks through a complete SoftAP-based provisioning example using the ESP SoftAP Prov app. ## ESP-WHO: Get started DevFeed: [ESP-WHO: Get started]() Original publisher: [Read original article]() Author: John Lee Published: 2026-05-28T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [Tutorial](), [Computer vision](), [Image processing](), [ESP32-S3](), [ESP-IDF](), [Inference](), [Hardware](), [Framework](), [Development]() Tags: [blog](), [camera](), [computer-vision](), [dl](), [esp-idf](), [esp-who](), [esp32](), [esp32-s3](), [face-recognition](), [hardware](), [image-processing](), [inference](), [led](), [tutorial]() ### AI overview This tutorial explains how to set up ESP-WHO on the ESP32-S3-EYE board, run a face recognition example, and extend it with custom detection callbacks. It covers the platform architecture, component pipeline, hardware abstraction, prerequisites, and an LED response when a face is detected. ### Source excerpt In this article, we will set up ESP-WHO on the ESP32-S3-EYE board, running a face recognition example, and extending it with custom detection callbacks. ## Building Svitgrid, a Solar Monitoring Platform for Home Systems DevFeed: [Building Svitgrid, a Solar Monitoring Platform for Home Systems]() Original publisher: [Read original article]() Author: Ivan Ursul Published: 2026-05-21T00:00:00Z Content type: article Language: en Sources: [Ivan Ursul]() Topics: [Monitoring](), [dashboards](), [real-time](), [Fastify](), [Flutter](), [Modbus](), [TypeScript](), [Cloud Run](), [ESP-IDF](), [ESP32-S3](), [Firestore](), [Mobile]() Tags: [android](), [battery](), [cloud-run](), [energy-monitoring](), [esp-idf](), [esp32](), [esp32-s3](), [firestore](), [flutter](), [gcp](), [iot](), [java](), [migrations](), [mobile](), [modbus](), [mongodb](), [monitoring](), [real-time](), [side-project](), [solar](), [typescript](), [web]() ### AI overview This article explains how Svitgrid, a solar monitoring platform for residential systems, was built. It covers the product's goals, cross-platform clients, cloud backend, ESP32-S3 edge hardware, inverter data paths, and support for multiple inverter systems over Modbus TCP. ### Source excerpt Svitgrid dashboard: real-time power flow from PV to battery, home, and grid ## ESP-IDF Tools Local MCP Server: Build, Flash, and Manage Projects from Your AI Assistant DevFeed: [ESP-IDF Tools Local MCP Server: Build, Flash, and Manage Projects from Your AI Assistant]() Original publisher: [Read original article]() Author: John Lee Published: 2026-04-28T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [MCP Server](), [Model Context Protocol](), [Claude Code](), [cursor](), [ESP32]() Tags: [ai](), [blog](), [claude-code](), [cursor](), [eim](), [esp-idf](), [firmware](), [flash](), [how-to](), [idf-py](), [mcp](), [mcp-server](), [terminal]() ### AI overview Espressif's ESP-IDF Tools local MCP server lets MCP-capable AI clients perform project actions such as setting targets, building firmware, listing connected devices, flashing, and checking project state. The article explains how it complements the remote Documentation MCP server and provides setup and startup instructions. ### Source excerpt ESP-IDF v6.0 introduces the Tools local MCP server, a feature that lets AI clients like Cursor and Claude Code control your projects - setting targets, building, flashing, and checking status. This article explains how it works and walks you through setup step by step. ## ESP-IDF: Propagating compiler flags to ExternalProject builds DevFeed: [ESP-IDF: Propagating compiler flags to ExternalProject builds]() Original publisher: [Read original article]() Author: John Lee Published: 2026-04-27T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [CMake](), [Compiler]() Tags: [blog](), [build](), [build-system](), [cmake](), [compiler](), [compiler-flags](), [esp-idf]() ### AI overview This ESP-IDF post explains why compiler options driven by Kconfig and components do not automatically propagate to ExternalProject_Add() builds. It describes using response files tied to the appropriate build context to keep compiler flags aligned between the outer and nested CMake projects. ### Source excerpt When an ESP-IDF project uses ExternalProject_Add(), compiler options driven by Kconfig and components do not flow into the nested build on their own. This post walks through why that happens and how to keep the outer and inner CMake worlds aligned. ## ESPHome 2026.4.0: Faster ESP32 defaults and signed OTA DevFeed: [ESPHome 2026.4.0: Faster ESP32 defaults and signed OTA]() Original publisher: [Read original article]() Author: Jesse Hills Published: 2026-04-15T00:00:00Z Content type: release Language: en Sources: [ESPHome - Smart Home Made Simple - Blog]() Topics: [ESP32](), [ESP8266](), [Logging](), [benchmarking](), [ESP-IDF](), [Lvgl]() Tags: [2026](), [benchmarking](), [cpu](), [esp-idf](), [esp32](), [esp8266](), [logging](), [lvgl](), [ota](), [release](), [releases](), [security](), [yaml]() ### AI overview ESPHome 2026.4.0 increases ESP32 CPU frequency by default, adds signed OTA verification and custom partition tables, and improves performance across logging, configuration loading, Bluetooth proxying, Ethernet, and GPIO expanders. The release also adds an ESP8266 crash handler, LVGL 9.5.0, new components, and migration requirements for deprecated features. ### Source excerpt ESPHome 2026.4.0 raises ESP32 CPU frequency by default, adds signed OTA and an ESP8266 crash handler, and speeds up state logging and config loading. ## C++ Components for ESP-IDF DevFeed: [C++ Components for ESP-IDF]() Original publisher: [Read original article]() Author: John Lee Published: 2026-04-13T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [C++](), [ESP-IDF](), [ESP32](), [Wi-Fi](), [Networks](), [Development]() Tags: [beginner](), [blog](), [c-plus-plus](), [components](), [configuration](), [esp-idf](), [esp32](), [flash](), [guide](), [how-to](), [interface](), [wifi]() ### AI overview This tutorial explains how to structure and use C++ components for ESP-IDF on ESP32 systems. It demonstrates a Wi-Fi manager that connects to a local network through a setup access point and stores credentials in flash, and introduces a Deep Sleep component with step-by-step examples. ### Source excerpt This article presents two C++ ESP32 components: wifi_manager for seamless network connection and Deep Sleep for power-saving operation, both easily integrated using provided code examples. It also lists additional ESP-IDF components to streamline development. ## ESP-IDF v6.0: Default libc Switches from Newlib to PicolibC DevFeed: [ESP-IDF v6.0: Default libc Switches from Newlib to PicolibC]() Original publisher: [Read original article]() Author: John Lee Published: 2026-04-02T00:00:00Z Content type: article Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [C](), [Embedded Systems](), [migration](), [Streams](), [Library](), [POSIX]() Tags: [apis](), [architectures](), [blog](), [c](), [compatibility](), [embedded](), [embedded-systems](), [esp-idf](), [firmware](), [libc](), [libraries](), [memory](), [migration](), [newlib](), [performance](), [picolibc](), [posix](), [streams](), [systems](), [toolchains]() ### AI overview ESP-IDF v6.0 changes its default C library from Newlib to PicolibC. The article compares the libraries' memory usage, standard I/O behavior, compatibility, and migration considerations, including measurements on ESP32-C3. ### Source excerpt ESP-IDF v6.0 switches the default C library from Newlib to PicolibC. This article compares both libraries in terms of memory usage, stdio behavior, compatibility, and migration tradeoffs, and explains when keeping Newlib still makes sense. ## Introducing the SPIFFS component DevFeed: [Introducing the SPIFFS component]() Original publisher: [Read original article]() Author: John Lee Published: 2026-03-23T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [Filesystems](), [Streams](), [C](), [POSIX](), [ESP32]() Tags: [article](), [beginner](), [blog](), [c](), [esp-idf](), [filesystem](), [guide](), [posix](), [spiffs](), [storage](), [tutorial]() ### AI overview This practical guide introduces the SPIFFS component bundled with ESP-IDF for storing files on SPI NOR flash. It explains how SPIFFS works with the VFS layer and standard C and POSIX file APIs, describes features such as wear levelling, consistency checks, and format-on-mount, and outlines a basic flow for mounting, writing, renaming, and reading files. It also points to SPIFFSgen and an official working example. ### Source excerpt Learn what the ESP-IDF SPIFFS component is, how it works with the VFS layer and standard C file APIs, and how to use the SPIFFSgen tool to embed files. This article is a practical guide with references to the official example. ## Announcing ESP-IDF v6.0 DevFeed: [Announcing ESP-IDF v6.0]() Original publisher: [Read original article]() Author: John Lee Published: 2026-03-20T00:00:00Z Content type: release Language: en Sources: [Blog on Developer Portal]() Topics: [ESP-IDF](), [Developer experience](), [Tooling](), [Embedded Software Dev](), [CI/CD]() Tags: [blog](), [developer-experience](), [esp-idf](), [github-actions](), [iot](), [migration-guide](), [newlib](), [picolibc](), [release](), [tooling]() ### AI overview Espressif's ESP-IDF 6.0 release updates the development workflow with the cross-platform ESP-IDF Installation Manager, changes the default C library from Newlib to Picolibc, and introduces security, tooling, library, and hardware-support updates. The release includes breaking changes for users upgrading from v5.x. ### Source excerpt We're excited to announce the long-awaited release of ESP-IDF 6.0! This article highlights the key changes and improvements not only to ESP-IDF itself, but also to the broader ESP-IDF tooling ecosystem, all designed to enhance your developer experience. ## RED DA Assessment Tool for ESP-IDF EN 18031 Self-Assessment DevFeed: [RED DA Assessment Tool for ESP-IDF EN 18031 Self-Assessment]() Original publisher: [Read original article]() Author: John Lee Published: 2026-03-17T00:00:00Z Content type: tutorial Language: en Sources: [Blog on Developer Portal]() Topics: [EN 18031](), [ESP32](), [ESP-IDF](), [Internet of things]() Tags: [blog](), [compliance](), [en-18031](), [esp-idf](), [esp32](), [iot](), [red-directive](), [regulatory](), [sbom]() ### AI overview This tutorial explains Espressif's RED DA Assessment Tool for ESP-IDF projects. The web application reads configuration files, scans an SBOM for known vulnerabilities, pre-fills a security questionnaire, and generates documentation for RED Delegated Act EN 18031 self-assessment. ### Source excerpt The RED DA Assessment Tool simplifies the process of achieving cybersecurity compliance for ESP32 devices in line with the EU's EN 18031 standards. This article explains how the tool helps you gather, validate, and generate all necessary documentation for RED Delegated Act self-assessment, including uploading configuration and SBOM files, completing risk assessments, mapping technical requirements, and preparing a declaration of conformity--making self-declaration fast, accurate, and accessible for IoT developers. ## Staying Ahead with ESP32 Security Updates DevFeed: [Staying Ahead with ESP32 Security Updates]() Original publisher: [Read original article]() Author: John Lee Published: 2026-03-05T00:00:00Z Content type: article Language: en Sources: [Blog on Developer Portal]() Topics: [ESP32](), [Security](), [vulnerability management](), [cyber resilience act](), [dashboards](), [ESP-IDF](), [Espressif](), [software bill of materials]() Tags: [blog](), [cyber-resilience-act](), [dashboards](), [esp-idf](), [esp32](), [espressif](), [iot](), [lts](), [ota](), [sbom](), [security](), [vulnerability]() ### AI overview This article explains how the ESP32 ecosystem supports long-term firmware security and compliance under regulations such as the EU Cyber Resilience Act. It covers vulnerability management, secure OTA updates, Long-Term Support branches, the ESP-IDF Security Dashboard, and SBOMs for tracking affected components and patched versions. ### Source excerpt This article explains how manufacturers can use the ESP32 ecosystem to build and maintain secure firmware over time, especially in light of new regulations like the EU Cyber Resilience Act. It highlights tools such as vulnerability dashboards, Long-Term Support branches, and secure OTA updates to ensure ongoing compliance and device security. [Next page]()