ESP32 latest SDK released

Please refer to 如何为 ESP 系列模组烧录固件 to download the programming tutorial

Espressif

Espressif's original SDK download https://github.com/espressif/esp-idf/releases

ESP32-S factory default AT firmware download

ai-thinker_esp32-s_dio_32mbit_v1.0_2020_02_14.rar

ESP32-S factory update AT firmware download （UART0）

esp32-s_at2.2-sdk4.0.1_UART0

ESP-12K factory default AT firmware download

ai-thinker_esp-12k_dio_32mbit_at_v2.1.0.0_20200507.zip

ESP32-SL factory default AT firmware download

1084_ai-thinker_esp32-sl_dio_32mbit_v2.1.0.0_20200420.rar

NodeMCU-32S factory firmware download

ai-thinker_nodemcu-32s_dio_32mbit_20170705.7z Please refer to the tutorial https://nodemcu.readthedocs.io/en/dev-esp32/

Bluetooth distribution network firmware download

blufi_firmware.7z For the tutorial, please refer to http://mp.weixin.qq.com/s/wlUWk-IXG-rLjkj_rQgIeA