Documentation

Appearance

Revision History ​

Version 2.19.0 ​

  • Added the features of sub-device OTA upgrade and positioning.

Version 2.18.0 ​

  • Changed the UUID of a device from DeviceKey to module MAC address and IMEI number when device information is quired in AT command solution.
  • Got all parameter values when all parameters are null in Ql_iotSysGetDevInfo() in QuecOpen solution.
  • Added the built-in Wi-Fi positioning feature.
  • Added the feature of getting NTP time zones.
  • Supported the TSL model in RAW format.
  • Added the unique-DeviceSecret-per-device authentication feature.
  • Added TSL model service.
  • Added data acquisition feature for the devices connected to Developer Center over CoAP.
  • Added a mechanism that a sub-device resends the information after failing to send offline information.
  • Added the mechanism that a DTU can request a sub-device to resend the Modbus protocol again when reading sub-device information.
  • Added the feature of sending the URL of the firmware download to the MCU when a SOTA upgrade is performed.

Version 2.10.6 ​

  • Added the requirement that only one slave can be added to a directly connected device in DTU-Modbus solution.
  • Added the feature of event-triggered report.
  • Supported discrete magnitude in DTU-Modbus solution.

Version 2.10.5 ​

  • Added Ql_iotTtlvldAddFloat in OpenAPI, which allows you to add the precision of a specified floating-point number.
  • After the firmware has been upgraded, the device must be connected to Developer Center to verify whether the FOTA is performed successfully.

Version 2.10.4 ​

  • Updated device binding demand (BindSecret can be updated when ProductKey, ProductSecret, DeviceKey or DeviceSecret changes.)
  • DeviceSecret is not cleared any longer when the IP address of the local device server is configured.

Version 2.10.3 ​

  • Updated the device resetting feature.
  • Updated the device binding feature.
  • Fixed Developer Center OTA potential defect.
  • Fixed the bug when HTTP OTA SDK is ported to the module.
  • Fixed the memory leakage of TSL model in JSON format in AT command solution.

Version 2.10.0 ​

  • Supported ModBus communication protocol.
  • Supported the wireless gateway feature.
  • Supported resetting DS.
  • Supported returning a PkgId to identify the uplink data after the uplink data is sent out.
  • Added the ModBus sub-device-related feature related.

Version 2.9.2 ​

  • Supported reporting BindCode.
  • Supported adaptation layer in configuring the length of data read and sent by the AT command.
  • Modified HTTP OTA upgrade command.
  • Fixed the asynchronous problem of OTA upgrade thread.
  • Optimized error code processing mechanism.
  • Added the scenario distinctions of Developer Center issuing error codes.
  • Added the repeated communication package filtering mechanism.

Version 2.9.0 ​

  • Supported sub-device accessing and communicating with Developer Center.
  • Optimized the device data sending and receiving logic.
  • Added HTTP OTA support for multi-firmware plans.

Version 2.8.3 ​

  • Supported HTTP OTA solution.
  • Added DNS optimization processing.
  • Added OTA support for multiple components and multiple firmware.
  • Optimized resource locking of socket management in the kernel layer.

Version 2.8.2 ​

  • Added the event notification of 2,10476 when the network connection is abnormal after the device initiates access to M2M.
  • Added an interface for an application to configure DK and DS.
  • Added the penalty mechanism for M2M access exceptions.
  • Supported JSON-format data in TSL AT command solution.
  • Supported forcible conversion of HTTP domain names in production environments.
  • Added IP cache after DNS resolution, allowing direct IP connection in subsequent attempts unless IP fails, in which case DNS can be reused.

Version 2.7.2 ​

  • Supported LAN UDP discovering devices, only for LAN devices.
  • Supported server domain name switching and PK/PS switching by connecting to a new MQTT broker.
  • Supported optional encryption of M2M communication data.

Version 2.6.1 ​

  • Modified the location reporting command and supported reporting external GPS data.
  • Added APIs for obtaining device information and status.
  • Added encrypted storage of users' configuration data with AES128 ECB pcks#7.
  • Added the positioning feature.
  • Added the condition that ERROR is returned when the transparent transmission data or TSL data is null.
  • Changed the limit for sending data using quos_socket from the number of nodes to the total number of bytes sent (Default: 50 K bytes. Determined by actual chip RAM.)

Version 2.3.4 ​

  • Changed the result notification of sending a TSL model; Successful sending is now indicated by 4,10210 and sending failure is now indicated by 4,10310.
  • Supported transparent transmission of AT commands.

Version 2.3.3 ​

  • Changed the result notification of sending a TSL model; Successful sending (4,10210) and sending failure (4,10310).
  • Restored SDK version number to 2.3.3.