| ArduTest | Minimal Arduino-side real-device test and observation library. |
| AssocTree | Static-memory associative tree storage for Arduino/ESP32. |
| efont Unicode Font Data | Arduino Unicode Font libraries. |
| EmbedFS | Read-only embedded virtual filesystem for Arduino/ESP32 (embed files in flash) |
| EspEasyUtils | ESP32 Easy Utils |
| EspHelper | Thin Arduino-friendly wrappers around ESP-IDF components for ESP32 boards. |
| EspHttpServer | Lightweight esp_http_server-based helper library for ESP32 Arduino sketches. |
| EspNowBus | Lightweight group-oriented ESP-NOW message bus for ESP32 (secure by default). |
| EspUsbHost | This is a library for using USB Host with ESP32. |
| ESP32AutoTask | Helper library to run FreeRTOS tasks easily on ESP32 Arduino with simple hooks. |
| ESP32CertBundle | ESP32 certificate bundle generated from the ESP-IDF root store. |
| ESP32 Lite Pack Library | ESP32LitePack, M5Lite, A lightweight compatibility library. Support Devices:M5StickC, M5StickC Plus, M5Stack BASIC, M5Stack GRAY, M5Stack FIRE, M5Stack Core2, M5Stack ATOM Lite, M5Stack ATOM Matrix, M5Stack ATOM ECHO |
| ESP32PsramLock | Library to control ESP32 PSRAM |
| ESP32SerialCtl | Minimal serial CLI helper for ESP32 Arduino projects. |
| ESP32SyncKit | Header-only C++ wrappers for FreeRTOS sync primitives on ESP32 (Arduino). |
| ESP32TaskKit | Task management kit for ESP32 (Arduino) with C++ class and configs. |
| ESP32 ULP Debugger | Arduino ESP32 ULP Debugger libraries. |
| I2C AXP192 Power management | This is a library of AXP192, the Power Management for I2C connectivity. |
| I2C BM8563 RTC | Library to control I2C RTC |
| I2C MPU6886 IMU | Library to control I2C MPU6886 |
| I2C SLG | Library to control I2C GreenPAK SLG46826 |
| LGFXScreenBuilder | Authoring and generated screen runtime for LovyanGFX and M5GFX. |
| LGFXVirtualCanvas | Virtual full-screen canvas over LovyanGFX / M5GFX via vertical tiling. |
| LinxESP32 | LINX - Digilent/LabVIEW MakerHub for ESP32 |
| PCMFlow | Lightweight audio decode and PCM flow library for Arduino. |
| PCMFlowDevice | Device I/O helpers for PCMFlow, starting with buffered M5Unified speaker playback. |
| PCMFlowG711 | G.711 (mu-law / A-law) codec add-on for PCMFlow, focused on real-time voice (VoIP, ESP-NOW transceivers). |
| PCMFlowG722 | G.722 wideband (HD voice) codec add-on for PCMFlow, focused on real-time voice (VoIP, ESP-NOW transceivers). |
| PCMFlowOpus | Opus codec add-on for PCMFlow, focused on real-time voice (VoIP, ESP-NOW transceivers). |
| PCMFlowUDP | UDP transport adapter for PCMFlow. Raw UDP, VBAN PCM, and RTP (PCMU / PCMA / G722 / L16 / Opus payload types) for streaming audio between Arduino devices and PCs. |
| TensorFlowLite_ESP32 | Allows you to run machine learning models locally on your ESP32 device. |
| variants_collector | Header-only library that exposes Arduino board variant pin definitions. |