ESP-IDF v4.0-rc 的相关文档已发布至 https://docs.espressif.com/projects/esp-idf/en/v4.0-rc/ ESP-IDF v4.0-rc 是 ESP-IDF v4.0 的预发布版本，在 ESP-IDF v3.x 基础上做了重大更新。 ESP-IDF v4.0-rc 兼容大部分基于 ESP-IDF v3.x 的应用，但也存在一些重大变更（请参阅 GitHub 上的发布界面）并移除了废弃的功能，因此用户在升级 IDF 时需要更新对应的代码。 截至发稿时， v3.3.1 是当前最新的稳定版本。 如您想获取新功能、发布说明、已知问题及安装指导等...

Hi gpezzella,

For reviewing of the PCB hardware or schematic, you could refer to the link here https://github.com/espressif/esp-idf/issues/new/choose and choose hardware-related service, thanks.

Hi louislewis2, An issue I have encountered, is when trying to select the correct chip, I cannot seem to find the correct part to order, then once found would like to find the correct reference design. If it is possible, I would like to aim for a chip which allows for at least 8mb of flash, 16mb wou...

Hi bmbouter,

Thanks for the post, we would look into. Thanks.

Alvin

Hi Alex, Thanks for your suggestion. The Datasheet has been updated, please refer to the updated versions at https://www.espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_cn.pdf https://www.espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_en.pdf Thanks. A...

Hi binhla,

Thanks for the post, we will look into, thanks.

Alvin

Hi 2551558,

dl.espressif.com is back up now, please help check, thanks.

Alvin

Hi 2551558,

Thanks for reporting, we will look into soon. Thanks.

Alvin

Hi Dreamer_mos,

Thanks for the post. Would you please help share what board you are using? Could you help share the name of the board? Thanks.

Alvin

Hi Kevin Brant,

Thanks for the details, we will look into. Thanks.

Alvin
Best Regards