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1.3.11

Features

  • NB-IoT support: Option to switch from LTE-M to NB-IoT in the provision sketch (and vice versa)
  • The library now includes a SMS example sketch for sending SMS

Bugfixes

  • Use AT+SQNSHDN during SequansController.end() to shutdown the modem faster and not preventing power down sleep mode

1.3.10

Changes

  • Use JsonDocument instead of the deprecated StaticJsonDocument from ArduinoJson in sandbox.ino and plant_monitoring.ino
  • Correct some compiler warnings and typos

1.3.9

Changes

  • mqtt_azure.ino example sketch now uses callbacks for receiving messages, so that the wilcard subscription is handled properly

1.3.8

Features

  • Azure support with accompanying example sketch and provisioning
  • Flash string support for the log module and the sequans controller with the F() macro
  • A plant monitoring system example sketch is now included in the library
  • The HttpClient now also reports curl status codes for better error handling

Optimizations

  • The library now has a significantly lower RAM usage due to use of strings stored in flash rather than in RAM

Changes

  • MqttClient.begin is now blocking (within the timeout) and the callback registered with MqttClient.onConnect is deprecated and won't be called. This is to be able to capture error messages during the MQTT connection.

Bugfixes

  • The provisioning sketch now supports a chain of certificates
  • Fixes some missing dependencies for the examples

1.3.7

Bugfixes

  • Fix a bug where a disconnect from the network whilst being connected to a MQTT broker would cause the board to not respond

1.3.6

Features

  • Add timeout parameter for HTTP(S)

Changes

  • LEDs toggle during HTTP queries (if the LED controller is not set to manual mode)
  • Correct the certificates extacted from extract_certificates.ino so that they have the correct authority key identifier
  • Cryptoauthlib is now in its own folder in src to make the source folder more structured

Bugfixes

  • Fix a bug where the device would not enter deep sleep due to the use of millis()
  • Fix a bug where the interrupt flag for the reset button was cleared after the device was reset in sandbox.ino
  • Fix a bug where pull-ups weren't enabled for some instances of SW0 and SW1 in the examples

Deprecation notice

  • This release deprecates the use of ECC608.getThingName(buffer, &size) and ECC608.getEndpoint(buffer, &size). Use ECC608.readProvisionItem(type, buffer, &size) instead. The type is an enum of ecc_data_types found in ecc608.h. To e.g. read the AWS thing name, use: ECC608.readProvisionItem(AWS_THINGNAME, buffer, &size).

1.3.5

Changes

  • A CA is now mandatory for provisioning
  • The library now uses the latest version of cryptoauthlib

Bugfixes

  • Fix a bug where the device would not go in deep sleep when using the low power modes
  • Fix a bug where a certificate would not be parsed correctly during provisioning

1.3.4

Features

  • Add a custom provisioning sketch for MQTT(S) and HTTP(S)
  • Reduce power consumption in low power from ~300uA to ~70uA
  • Add examples sketches for serial, GPIO and robust MQTT with connection loss

Changes

  • Improved MQTT URC handling
  • Introduce an adjustable timout for Lte.begin()

Bugfixes

  • Fix a bug where the reset pin was floating in the sandbox application
  • Fix a bug where reading the response in the SequansController would wrongly return an buffer overflow

1.3.3

Features

  • Add ability to add HTTP headers
  • Add ability for specifying content type for HTTP POST requests

Changes

  • Security profile patch is removed as this is now taken care of by NTP synchronization
  • Add Mqtt.end() in MQTT examples to prevent the broker waiting after running the example

Bugfixes

  • Fix a bug where Sequans.waitForURC would return true even when the URC was not received

1.3.2

Internal build

1.3.1

Changes

  • Turn off more modules in low power to save more power
  • Add hardware-in-the-loop testing

Bugfixes

  • Fix a bug where it would take some time before the board was actually in power down mode
  • Fix a bug where waking up from power down mode would reset the board
  • Fix a bug where it was wrongly reported that the SIM card was not ready

1.3.0

Features

  • Add username and password authentication for MQTT
  • Add example using username and password authentication for MQTT
  • Add a function for retrieving the supply voltage of the board in LowPower and an example demonstrating it

Changes

  • Make the AT command system for the cellular modem faster and more robust
  • Make cryptoauthlib not precompiled in order to reduce flash and RAM usage
  • Reduce buffer sizes and function count (mostly callbacks) in the library to reduce total flash and RAM usage
  • Change pin configuration for low power such that a lower current consumption is achieved

Bugfixes

  • Fix a bug where the NTP sync would not retry if it failed
  • Fix a bug where the NTP sync would retry if cellular network got disconnected while doing the sync
  • Fix a bug where the LEDs weren't returned to the previous state after a power save

1.2.3

Features

  • Add GPS tracker example

Changes

  • Update MCP9808 library name in library.properties dependency field
  • Update VEML3328 library name in library.properties dependency field
  • Update Jenkins pipeline with new arduino-lint configurations

Bugfixes

  • Fix a bug where the peripherals weren't powered up before the LTE module in power down mode
  • Fix a bug where the LEDs wouldn't blink after using power down mode

1.2.2

No changes

1.2.1

Changes

  • Update library name in library.properties file

Bugfixes

  • Fix dependency error in library.properties file

1.2.0

Features

  • Split HTTP example into a HTTP and HTTPS example
  • Add a log message when HTTPS security profile is not set up
  • Update library.properties to pass lint checks for PR with library-registry
  • Improve error messages for MQTT

Changes

  • Use Arduino interrupt system so that the library doesn't hijack interrupt service routines used by other libraries
  • Change sandbox application to use increased MQTT Quality of Service in order to not lose received messages
  • Remove MqttClient.disconnect() (full functionality given in MqttClient.end())

Bugfixes

  • Fix a bug where HTTP requests would make the modem hang
  • Add a temporary fix for a bug where the modem would not respond during MQTT publish and receive
  • Fix a bug where retrieving the modem clock would fail

1.1.3

Bugfixes

  • Fixes a bug where the CELL LED wouldn't blink while the device was connecting to the network
  • Fixes a bug in the sandbox where some event flags could be cleared before being processed

1.1.2

Features

  • Add NTP synchronization in Lte.begin() if modem clock is not set

Bugfixes

  • Fixes a bug for TLS certificate verification in certain regions
  • Fixes a bug where the power save functionality would not terminate
  • Reduce time used for querying for operator

1.1.1

Bugfixes

  • Fixes a bug where LTE connectivity in sandbox was not reconnecting
  • Added temporarily work around for TLS certificate verification in certain regions

1.1.0

Features

  • Added sensor driver shutdown to lower power examples
  • Refactored sandbox to use modulo instead of masking
  • Added a simple CLI for the sandbox

Bugfixes

  • Fixed a bug where the board buttons were disabled during sleep, and could not wake up the MCU
  • Removed configuring button as input again after not disabling it
  • Fixed a bug where flow control was not correctly applied when the receive buffer was full. This particularly affected the sandbox.

1.0.0

  • Initial Release