ESP32-AT Release v2.1.0.0

Documentation for Release v2.1.0.0 is available at https://docs.espressif.com/projects/esp-at/en/release-v2.1.0.0_esp32/
You can download the firmwares to try them, which support OTA from espressif‘s server.

ESP32-WROOM-32_AT_Bin_V2.1.0.0.zip
ESP32-WROVER_AT_Bin_V2.1.0.0.zip
ESP32-PICO-D4_AT_Bin_V2.1.0.0.zip
ESP32-SOLO_AT_Bin_V2.1.0.0.zip

ESP32-AT v2.1.0.0 is a major update for ESP32-AT v2.0.0.0.

This is the list of changes since ESP32-AT Release v2.0.0.0.

SDK Update and Known issue

Wakeup fail from light sleep

1.Feature

esp-idf version update to release v4.0(e7ac221b)

1.1 WiFi

AT+CWCOUNTRY: configurate and query the WiFi country code
AT+CWSTAPROTO: set and query the 802.11 b/g/n protocol standard of station mode
AT+CWAPPROTO: set and query the 802.11 b/g/n protocol standard of SoftAP mode
Support automatically connect to AP in the command AT+CWMODE after changed to station mode
Support scan mode configuration in the command AT+CWJAP

1.2 TCP/IP

AT+CIPTCPOPT: configurate and query the TCP socket options, include SO_LINGER, TCP_NODELAY, SO_SNDTIMEO options
Support multicast address in the command AT+CIPSTART

1.3 TLS

AT+CIPSSLCCN: configurate and query SSL client common name(CN)
AT+CIPSSLCSNI: configurate and query SSL client server name indication(SNI)
AT+CIPSSLCALPN: configurate and query SSL client application layer protocol negotiation(ALPN)
AT+CIPSSLCPSK: configurate and query SSL client pre-shared key(PSK)

1.4 BT & BLE

Enable BLE HID commands by default
AT+BTCOD: Configure class of BT device
AT+BLUFI: start and stop BLUFI function(configure Wi-Fi information by ble)
AT+BLEADVDATAEX: set BLE advertising data automatically
Add AT+BTSCANMODE query command: query BT scan mode
Add AT+BLEGATTSSRVCRE multiple services
Support scan filter in the command AT+BLESCAN
Support discoverable but not connectable mode in the command AT+BTSCANMODE
Support retransmission for BT SPP
Support some BT and BLE parameters store to flash
Support BLE connection callback for user to customize it

1.5 MQTT

Enable MQTT commands by default
AT+MQTTCLIENTID: set and query MQTT client ID
AT+MQTTUSERNMAE: set and query MQTT username
AT+MQTTPASSWORD: set and query MQTT password
Add AT+MQTTUSERCFG query command
Add AT+MQTTCONNCFG query command
Add AT+MQTTUSERNAME query command
Add AT+MQTTCLIENDID query command
Add AT+MQTTPASSWORD query command
Add MQTT authentication method configuration in menuconfig

1.6 HTTP

Enable HTTP commands by default
AT+HTTPGETSIZE: get HTTP resource size
Support custom request headers in the command AT+HTTPCLIENT

1.7 System

AT+SLEEPWKCFG: configurate the light-sleep wakeup source and awake GPIO
AT+SYSSTORE: control if store parameter into flash
Separate WPS, PING, SmartConfig and MDNS commands in menuconfig
Support cmake to compile esp-at project
OTA use esp-tls instead of openSSL
Add uart port configuration in the factory parameter binary
change factory parameter version to v2

1.8 Example

Add STM32 example for SDIO SPI AT
Add STM32 SDIO host example

2. Bugfix

2.1 WiFi

Fix AT+RFPOWER set failed when disable WiFi command
Fix AT+CWLAP scan fail when WiFi is connecting
Fix missing WiFi status information if AT+CIPMODE=1
Fix WiFi state is error after AT+CWJAP failed
Fix AT+CIPRECONNINTV set range [1, 36000]

2.3 UART

Fix UART parity configuration error

2.4 BT & BLE

Fix crash if the notification value of ble is too long
Fix BLE service discovery works bad in multiple connections status
Fix crash when re-create BLE services
Fix re-enter BLE SPP fail
Fix AT+BLESCAN=2 return OK
Fix hid init fail
Fix the data is lost when in BLE SPP
Fix exit from bluetooth throughput mode failed
Fix gatt server re-enter spp mode fail
Fix write characteristic value fail
Fix exit automatically reconnect status fail after terminating BLE spp mode
Fix establish a new connection fail after ble connection timeout
Fix BT default device name is empty
Fix BT scan result is out of order
Fix BT SPP exit throughput mode fail after disconnection
Fix some MAC address informations is missing quotes

2.5 MQTT

Fix crash when running AT+MQTTCONN?
Fix crash when running AT+MQTTPUB if the data is too long
Fix block when running AT+MQTTPUB
Fix crash when MQTT is disconnected
Fix MQTT can not automatically reconnect
Fix crash when running AT+MQTTPUBRAW if the topic length is too long
Fix the length of the topic is error if the received MQTT data is too large
Fix AT+MQTTPUB failed when WiFi is reconnected
Fix the length of the data for AT+MQTTPUBRAW is limited
Fix the state responded by AT+MQTTCONN? is error when WiFi is reconnected
Fix AT+MQTTCONN fails when MQTT close and re-build the link
Fix crash when running AT+MQTTCONNCFG if mqtt is disconnected
Fix crash when mqtt is established if Wi-Fi is reconnected

2.6 HTTP

Fix print the data downloaded by HTTP error
Fix check if http transport type is valid in the command AT+HTTPCLIENT
Fix crash if some URL is special in the command AT+HTTPCLIENT

2.7 System

Fix busy sometimes after AT+CIPSEND returned OK
Fix incorrect information in the factory_parameter.log if module name not defined
Fix AT command end with CR responses OK
Fix missing "+QUIT" when quit transmission mode if AT+SYSMSG=1
Fix AT+CIPSTATUS state unmatched when WiFi disconnected
Fix AT+SYSMSG parameter check

2.8 DNS

Fix the last DNS configuration is error when running AT+CIPDNS

2.9 PING

Fix it returns ERROR when running AT+PING

Optimizations

Optimize sockets process workflow
Optimize AT+CIPSTATUS command process
Optimize transmit terminal process
check the default max tx power validity

espressif/esp-at v2.1.0.0_esp32 on GitHub