Combo AT Firmware

2939 (Latest): V4.18_P23.2.1

• Added the following commands:
  • AT+SYSMSG
  • AT+HTTPRAW
  • AT+MQTTVER
  • AT+MQTTKEEPALIVE
  • AT+MQTTDISCONN
• Added HTTP request end detection through terminator when Content-Length is absent
• Modified restore command to not clear IOMAP
• Modified flash writing logic to avoid writing duplicate data
• Added ATE echo function saved to flash
• Adapted Bluetooth initialization
• Increased MQTTPUBRAW command topic buffer from 64 to 256
• MQTT push messages no longer send \0
• Fixed issue where SSID over 32 bytes would cause system crash
• Fixed invalid ConID issue when creating socket with AT+SOCKET
• Fixed data transmission failure issue in UDP transparent transmission mode
• Fixed crash issue when MQTT configuration parameters are empty in AT commands
• Fixed restart issue when AT+OTA parameter URL is too long
• Fixed incorrect information in AT+STAINFO?
• Fixed memory leak issue during serial port reinitialization

2328: V4.18_P23.1.0

• Removed the following commands:
  • AT+WDOMAIN
  • AT+SNTPTIME
  • AT+SNTPTIMECFG
  • AT+SNTPINTV
  • AT+WDOMAIN
• Improved smart config, airkiss, blufi network configuration process
• Adapted deep sleep functionality

1923: V4.18_P1.4.4

• Added the following commands:
  • AT+SOCKETAUTOTT
  • AT+WSCANOPT
• Added automatic socket deletion function
• Fixed slow connection issue in ESP touch network configuration
• Fixed program crash issue caused by BLUFI network configuration init/deinit
• Modified WIFI to not allow multiple network configuration init
• Fixed SSL certificate length calculation error
• Added Bluetooth network configuration and IP acquisition event
• Fixed program crash when closing BLE after BLE connection
• Fixed missing BLE connection parameter requests
• Fixed incorrect BLE slave broadcast data length
• Fixed BLE host automatic connection failure on power-on
• Modified flash read/write interface to support reading/writing data over 4K
• Updated AI_ComboSDK to V4.18_P2.18.0
• SSL client connection supports certificate verification (server certificate can be set but legitimacy is not verified)
• Modified default socket thread stack size (previously too small, insufficient for server side)
• Added SSL certificate query and setting commands
• Fixed BLE issues
• Fixed possible crash when BLE host mode connects to devices with poor signal
• Updated ai_ota
• Fixed long parsing time for the last frame due to inconsistent protocol header length
• Updated AI_ComboSDK to V4.18_P2.17.1
• Extended socket automatic connection delay (waiting for network initialization to complete)
• Updated AI_ComboSDK to V4.18_P2.17.0
• BL602 SDK update
• Added ESP touch and AirKiss network configuration functions
• Fixed reset issue when enabling Bluetooth slave after factory reset

2235: V4.18_P2

• Added the following commands:
  • AT+WRSSI
  • AT+SNTPINTV
  • AT+SNTPTIMECFG
  • AT+SNTPTIME
  • AT+WDNS
  • AT+WDOMAIN
• Adapted AI_HalWifiOff() interface
• Updated flash save method
• Updated AI_ComboSDK
• Disabled EVENT printing in transparent transmission mode
• Added DNS related commands
• Added WiFi reconnection
• Fixed exception caused by not triggering WiFi disconnection event when WiFi power is directly cut off
• Fixed issue of not returning OK when setting normal mode in low power consumption
• Fixed GPIO wake-up setting failure in low power consumption
• Fixed MQTT SSL connection without certificate verification
• Fixed HTTP request end detection through terminator when Content-Length is absent
• Changed MQTT password maximum length to 255 bytes
• Changed default MQTT send/receive buffer to 2K
• TCP client added automatic reconnection function when disconnected
• Fixed UDPServer automatic data reception deadlock issue
• Fixed ineffective WiFi automatic connection when not connected
• AT+SLEEP added check for uninitialized IOMAP
• Fixed socket accept parameter error
• Added option to save WiFi parameters directly without verification during automatic reconnection on boot
• Fixed failure issue of WiFi automatically entering transparent transmission mode on power-on
• Fixed multi-thread printing disorder issue when actively printing data during socket communication
• Fixed WiFi scan failure after WiFi connection failure
• Changed maximum support for WiFi name and password to 63 bytes
• Sleep mode added parameters for configuring wake-up sources
• Adapted deep sleep functionality
• Fixed issue where WiFi connection information could not be queried after ESP BluFi Bluetooth network configuration success
• Fixed watchdog issue during Bluetooth transparent transmission of large files
• Fixed compatibility issue of WiFi scan output information
• Fixed issue of not automatically saving network configuration information after Bluetooth network configuration
• UDP server added sending function, with target being the first device from which data was received
• Removed delay to reduce socket inability to disconnect when exceptions occur
• Modified default Bluetooth UUID (incompatible with old versions)
• AT+WSCAN parameter 1 input changed to full word matching