Arduino-ESP32-SDK

This repository hosts specially recompiled libraries for the arduino-esp32 SDK. These libraries are compiled from the esp-arduino-libs/esp32-arduino-lib-builder.

Features

In comparison to the original arduino-esp32 SDK, this repository makes adjustments to certain sdkconfig configurations before compilation. If you need to change more configurations, you can modify the files in the configs folder of esp-arduino-libs/esp32-arduino-lib-builder and refer to its README for compilation details.

For SDKs suffixed with "-d"

The SDKs in the debug folder change the default log level to DEBUG by enabling CONFIG_LOG_DEFAULT_LEVEL_DEBUG=y and CONFIG_BOOTLOADER_LOG_LEVEL_INFO=y. This increases the number of log messages printed to the serial console to aid in debugging applications.

• esp32-2.0.13-d (Download Link: Github / Espressif)
• esp32-3.0.0-alpha3-d (Download Link: Github / Espressif)
• esp32-3.0.0-d (Download Link: Github / Espressif)
• esp32-3.0.2-d (Download Link: Github / Espressif)
• esp32-3.0.3-d (Download Link: Github / Espressif)

Important Note: The SDKs with the "-d" suffix are only for debugging. For production purposes, please use the official releases of arduino-esp32.

For SDKs suffixed with "-h"

The SDKs in the high_perf folder change some configurations and can achieve higher performance in some cases, especially for avoiding screen drifting when using RGB LCDs.

• For ESP32-S3 SoCs:

  • All:
    • It changes the optimization level from -Os to -O2 by enabling CONFIG_COMPILER_OPTIMIZATION_PERF=y.
    • It increases the size of the data cache line from 32 to 64 by enabling CONFIG_ESP32S3_DATA_CACHE_LINE_64B=y.
  • For ESP32-S3R8 (Octal PSRAM):
    • It enables the function XIP on PSRAM by enabling CONFIG_SPIRAM_FETCH_INSTRUCTIONS=y and CONFIG_SPIRAM_RODATA=y.

• esp32-3.0.0-alpha3-h (Download Link: Github / Espressif)

• esp32-3.0.0-h (Download Link: Github / Espressif)

• esp32-3.0.2-h (Download Link: Github / Espressif)

• esp32-3.0.3-h (Download Link: Github / Espressif)

How to Use

To use the SDKs from this repository in the Arduino IDE, follow these steps:

1. Check the version of the arduino-esp32 in use. It can be found in the Arduino IDE under Tools > Board > Boards Manager > esp32.
2. Ensure that the version of arduino-esp32 matches the version of the released SDKs in this repository.
3. If yes, download the released SDKs from this repository and replace the corresponding libraries in the arduino-esp32 SDK:
   • Step 1: Find the default root path of the arduino-esp32 SDK. It should be different for different operating systems:
     • For Windows, the default path is C:\Users\<user name>\AppData\Local\Arduino15\packages\esp32.
     • For Linux, the default path is ~/.arduino15/packages/esp32.
   • Step 2: Find the default path of the SDK libraries. It should be different for different versions of arduino-esp32:
     • For arduino-esp32 v2.x.x, the default path is hardware > esp32 > 2.x.x > tools > sdk.
     • For arduino-esp32 v3.x.x, the default path is tools > esp32-arduino-libs > idf-release_x.
4. If not, open an issue in this repository to request a new release or refer to the documentation for compilation instructions.