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Title Body Platform Version Release Datesort descending Download
ESP-Launcher Data Send and Receive Operation Power Consumption Tests

The power consumption of the ESP8266 depends on the PHY mode employed for sending or receiving data. In power critical applications, it is important to balance the average or burst data transfer rate as well as overall power consumption of the system.This test demonstration is intended to demonstrate the results of various power consumption tests on the ESP8266. Based on this guide, users can choose the appropriate PHY mode and data transmission scheme for their application.

ZIP V1.0 2016.10.10
TCP/UDP UART Passthrough Test Demonstration

The UART passthrough mode has been provided with the AT firmware to facilitate sending of data blocks of large size and for continuous transmission of small packets of data. In the passthrough mode, the data sent by the main application processor is directly forwarded to the target networking device via a TCP or UDP connection. Here, the ESP8266 AT firmware handles the networking tasks involved. This guide is intended to help users run TCP & UDP passthrough test on the ESP8266 IOT Platform quickly to evaluate the feature with various networking configurations of the ESP8266.

ZIP V1.0 2016.10.10
ESP8266 FOTA Demonstration

Espressif provides guidelines and a sample implementation of FOTA (Firmware Over-The-Air) function to upgrade the firmware on devices powered by the ESP8266. ESP8266 device will download a new version of firmware from the update server over Wi-Fi and run it. This guide is intended to help you run a FOTA demonstration on the ESP8266 easily and quickly, with a PC acting as the local update server. The FOTA test has been demonstrated and run on the ESP-Launcher, an ESP8266 evaluation board designed by Espressif. However, with appropriate build settings based on your application flash configuration, the test can be made to run on any ESP8266-based system. The demonstration initially runs the user1.bin as the primary firmware. The user1.bin, when executed, connects to the update server and downloads user2.bin (updated firmware) into the flash memory. When a system restart is triggered, the ESP8266 boots into the updated user2.bin, which now becomes the primary firmware binary file until another update is available for download. This new update is downloaded as user1.bin. This cycle is repeated for every subsequent update.

ZIP V1.0 2016.10.11
ESP8266 FOTA Demonstration with Phone App

This guide demonstrates the FOTA (Firmware-Over-The-Air) function for ESP8266-based devices. In particular, the guide outlines the process of upgrading ESP8266 firmware from Espressif Cloud over Wi-Fi by using our Android app. This process requires no technical skills and does not involve a PC or UART based tools. Therefore this process can be carried out by any user, including end users of ESP8266 based products. The FOTA test has been demonstrated and run on the ESP-Launcher, an ESP8266 evaluation board designed by Espressif. However, with appropriate build settings based on your application flash configuration, the test can be made to run on any ESP8266 based system.

ZIP V1.0 2016.10.23
ESP8266 RTOS SDK V1.5.0

Added features:

1. SPI flash erase protection mechanism (With this mechanism, boot.bin and current running user.bin cannot be erased.)
2. user_rf_cal_sector_set, an interface the user program MUST have
3. MemLeak debugging feature
4. SNTP support
5. Vendor IE support
6. Weak function wifi_set_backup_mac for setting user MAC
7. mbedTLS support

Improved features:

1. Updated SmartConfig to v2.5.4
2. Updated open freedom to support sending beacon packets
3. Updated libphy.a to v1055
4. Updated secondary bootloader to v1.6
5. Updated esp_init_data_default.bin
6. Optimized socket mechanism
7. Optimized sleep strategy

Fixed problems:

1. lwIP problem
2. PWM problem
3. SPI overlap problem
4. DNS problem with some routers
5. The maximum value of os_timer_arm
6. Exceptional RF failure after external reset;
7. Huawei X4’s failure to connect to Soft-AP
8. A problem in libpp.a that causes system assert
9. System crash when setting opmode from Station to Soft-AP in scan done callback
10. Status error by calling wifi_station_get_connect_status when the password is wrong
11. Disconnect event is prevented from entering twice when calling wifi_station_disconnect.
12. The SPI flash erase / write processes are modified. Before erasing or writing SPI flash, write-protected status will be cleared if need be.
13. Some cases where the RF_Init_data system parameter sector could be corrupted are fixed.
14. Fixed the problem of corrupted system parameter sector due to frequent power-on / power-off.
15. Other bugs.
RTOS SDK V1.5.0 2016.11.11
ESP8266 NONOS SDK V2.1.0 20170505

ESP8266 Non OS SDK V2.1.0.

NON-OS SDK V2.1.0 2017.05.05
ESP-WROOM-32 AT Bin V0.10

This is the first release of ESP32 AT firmware, which supports AT commands through UART. 

Please note that only Wi-Fi related functions are supported in this version. BLE-related functions will be supported in future release.

Bin V0.10 2017.06.14
ESP32-WROVER AT Bin V0.10

The ESP32 sends AT commands through UART1 by default, for ESP32-WROVER, it is:

* GPIO19 is RXD

* GPIO22 is TXD

* GPIO14 is RTS

* GPIO15 is CTS

Bin V0.10 2017.09.18
ESP8266 AT Bin V1.5.1

*Note:

When developing new products with ESP8266, it is recommended that you use ESP8266 AT Bin V2.0.0.0 and/or later versions. Previous AT versions were based on the ESP8266 NONOS SDK, to which no new features will be added in the future. ESP8266 AT Bin V2.0.0.0 and/or later versions will be developed according to the ESP8266 RTOS SDK, which will continue being updated.

Version Description:
Based on ESP8266_NonOS_SDK V2.1.

1. Fixed the WPA2 KRACK issue.

2. Fixed the issue of wrong messages being displayed after upgrading the firmware. 

Bin V1.5.1 2017.11.06
ESP-WROOM-32 AT Bin V1.0

Release note: https://github.com/espressif/esp32-at/releases

Bin V1.0.0 2017.11.17
ESP8266 AT Bin V1.6

*Note:

When developing new products with ESP8266, it is recommended that you use ESP8266 AT Bin V2.0.0.0 and/or later versions. Previous AT versions were based on the ESP8266 NONOS SDK, to which no new features will be added in the future. ESP8266 AT Bin V2.0.0.0 and/or later versions will be developed according to the ESP8266 RTOS SDK, which will continue being updated.

Version Description:
1. Update AT version to 1.6.0.0;

2. Add a new command `AT+SYSMSG` to enable some report information;

3. Add a new command `AT+CWCOUNTRY`;

    - `AT+CWCOUNTRY=<country_policy>,"country_code",<start_channel>,<total_channel_number>`

4. Add new command `AT+CIPSERVERMAXCONN`;

    - `AT+CIPSERVERMAXCONN=<num>`

5. Update command `AT+CWLAP`;

    - `AT+CWLAP =<ssid>[,<mac>,<ch>,<scan_type>,<scan_time_min>,<scan_time_max>]`

6. Update command `AT+CWLAPOPT`;

    - Mask changes from 0x7F to 0x7FF

7. Optimize tcp server by using new `espconn_recv`;

8. Fix an issue that getting error irom string when print messages after upgrade;

9. Fix an issue that baudrate is not correctly set when it was set at 1,200;

10. Fix an issue that it should return error if the link id is wrong;

11. Fix an issue that DNS auto mode is used by default;

12. Fix a wrong link id issue when client connection number reaches maximum;

13. Fix an issue that error will be reported when the maximun connection number is more than 5;

14. Fix the message is incorrect when creating UDP if ip is a domain name;

15. Fix GSLP too long time error;

16. Fix that `AT+CIPSTART` causes busy if the server is connected at the same time;

Bin V1.6 2018.02.07
ESP8266 AT Bin V1.6.1

*Note:
When developing new products with ESP8266, it is recommended that you use ESP8266 AT Bin V2.0.0.0 and/or later versions. Previous AT versions were based on the ESP8266 NONOS SDK, to which no new features will be added in the future. ESP8266 AT Bin V2.0.0.0 and/or later versions will be developed according to the ESP8266 RTOS SDK, which will continue being updated.

Version Description:

1. Fix an issue that light sleep current is larger than before.

Bin V1.6.1 2018.02.13
ESP8266 RTOS SDK V2.0.0

Click the download icon on the right to get release notes in detail and download the SDK of the latest version.

RTOS SDK V2.0.0 2018.04.02
ESP8266 NONOS SDK V2.2.1

ESP8266 non-OS SDK V2.2.1

NON-OS SDK V2.2.1 2018.06.08
ESP8266 AT Bin V1.6.2

Note: 

When developing new products with ESP8266, it is recommended that you use ESP8266 AT Bin V2.0.0.0 and/or later versions. Previous AT versions were based on the ESP8266 NONOS SDK, to which no new features will be added in the future. ESP8266 AT Bin V2.0.0.0 and/or later versions will be developed according to the ESP8266 RTOS SDK, which will continue being updated.

Version Description:

1. Fix station connecting behavior after upgrading from an old version.

2. Fix wrong SSID query when the length of SSID is 32 bytes.

3. Optimize AT+CIUPDATE behavior.

Bin V1.6.2 2018.06.08




More information on GitHub

Development projects are freely distributed under Espressif's MIT license on GitHub.