Released Firmware

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It is recommended to use the lastest version of firmware. Currently, Espressif releases AT firmware for the following ESP32 series of modules.

Note

• If you are unsure which AT firmware your module should use, please read the ESP-AT Firmware Differences document first. This document compares the differences among different ESP32 AT firmwares in terms of supported command sets, hardware configurations, and module compatibility, helping you determine if there is a suitable firmware for your module’s hardware configuration.

• If you need to modify the following configurations, you can generate a new firmware by modifying the AT firmware using the at.py Tool.

  • Modify UART Configuration

  • Modify Wi-Fi Configuration

  • Modify Certificate and Key Configuration

  • Modify GATTS Configuration

Disclaimer

Before using the AT firmware below, please read the Disclaimer carefully and comply with its terms and precautions.

ESP32-WROOM-32 Series

• v3.4.0.0 ESP32-WROOM-32-AT-V3.4.0.0.zip (Recommended)

• v3.2.1.0 ESP32-WROOM-32-AT-V3.2.1.0.zip

• v3.2.0.0 ESP32-WROOM-32-AT-V3.2.0.0.zip

• v2.4.0.0 ESP32-WROOM-32-AT-V2.4.0.0.zip

• v2.2.0.0 ESP32-WROOM-32-AT-V2.2.0.0.zip

• v2.1.0.0 ESP32-WROOM-32-AT-V2.1.0.0.zip

• v2.0.0.0 ESP32-WROOM-32-AT-V2.0.0.0.zip

• v1.1.2.0 ESP32-WROOM-32-AT-V1.1.2.0.zip

• v1.1.1.0 ESP32-WROOM-32-AT-V1.1.1.0.zip

• v1.1.0.0 ESP32-WROOM-32-AT-V1.1.0.0.zip

• v1.0.0.0 ESP32-WROOM-32-AT-V1.0.0.0.zip

• v0.10.0.0 ESP32-WROOM-32-AT-V0.10.0.0.zip

ESP32-MINI-1 Series

• v3.4.0.0 ESP32-MINI-1-AT-V3.4.0.0.zip (Recommended)

• v3.2.1.0 ESP32-MINI-1-AT-V3.2.1.0.zip

• v3.2.0.0 ESP32-MINI-1-AT-V3.2.0.0.zip

• v2.4.0.0 ESP32-MINI-1-AT-V2.4.0.0.zip

• v2.2.0.0 ESP32-MINI-1-AT-V2.2.0.0.zip

ESP32-WROVER-32 Series

It is not recommended to use the ESP32-WROVER-B module due to hardware limit. Please use other WROVER series modules.

• v2.4.0.0 ESP32-WROVER-32-AT-V2.4.0.0.zip (Recommended)

• v2.2.0.0 ESP32-WROVER-32-AT-V2.2.0.0.zip

• v2.1.0.0 ESP32-WROVER-32-AT-V2.1.0.0.zip

• v2.0.0.0 ESP32-WROVER-32-AT-V2.0.0.0.zip

• v0.10.0.0 ESP32-WROVER-32-AT-V0.10.0.0.zip

ESP32-PICO Series

• v3.4.0.0 ESP32-PICO-D4-AT-V3.4.0.0.zip (Recommended)

• v3.2.1.0 ESP32-PICO-D4-AT-V3.2.1.0.zip

• v3.2.0.0 ESP32-PICO-D4-AT-V3.2.0.0.zip

• v2.4.0.0 ESP32-PICO-D4-AT-V2.4.0.0.zip

• v2.2.0.0 ESP32-PICO-D4-AT-V2.2.0.0.zip

• v2.1.0.0 ESP32-PICO-D4-AT-V2.1.0.0.zip

• v2.0.0.0 ESP32-PICO-D4-AT-V2.0.0.0.zip

ESP32-SOLO Series

• v3.4.0.0 ESP32-SOLO-AT-V3.4.0.0.zip (Recommended)

• v3.2.1.0 ESP32-SOLO-AT-V3.2.1.0.zip

• v3.2.0.0 ESP32-SOLO-AT-V3.2.0.0.zip

• v2.4.0.0 ESP32-SOLO-AT-V2.4.0.0.zip

• v2.2.0.0 ESP32-SOLO-AT-V2.2.0.0.zip

• v2.1.0.0 ESP32-SOLO-AT-V2.1.0.0.zip

• v2.0.0.0 ESP32-SOLO-AT-V2.0.0.0.zip

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Please refer to the Subscribe to AT Releases documentation to subscribe to our version release notifications and stay updated on the latest releases.

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