Add PyPortal MiniMQTT Example

• Added new example for using the Adafruit_CircuitPython_PyPortal module with this library.

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

To use in CPython, pip3 install adafruit-circuitpython-minimqtt.

Read the docs for info on how to use it.

1.1.7 - Changed CI from Travis to GitHub Actions

This release includes:

• Migrating this repository from Travis to GitHub Actions. This has no effect on the behavior of the code itself.

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

To use in CPython, pip3 install adafruit-circuitpython-minimqtt.

Read the docs for info on how to use it.

Fix Client Identifier Generation Method

• #19 Use time.monotonic() instead of microcontroller.cpu.uid for random seed to create client ID

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

To use in CPython, pip3 install adafruit-circuitpython-minimqtt.

Read the docs for info on how to use it.

Add usage example for connecting with a broker using CA certificate and user certificate/key

• Added usage example for establishing a secure MQTT connection with a server, provided a user-defined X.509 certificate and private key.

NOTE: This example requires nina-fw v1.4.0 or above. If you do not know how to upgrade the firmware on your ESP32, follow the learn guide on the Adafruit Learning System for this topic.

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

Read the docs for info on how to use it.

Change socket.read to socket.recv

Changes calls from socket.read to socket.recv to match the latest ESP32SPI release.

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

Read the docs for info on how to use it.

Change socket.write to socket.send

Changes calls from socket.write to socket.send to match the latest ESP32SPI release.

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

Read the docs for info on how to use it.

Expose Attributes

Exposing the following MiniMQTT private attributes as public attributes:

• user, keepalive, password, client_id, logger

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

To use in CPython, pip install adafruit-circuitpython-minimqtt.

Read the docs for info on how to use it.

Fix CONNACK IndexError

Fixes an IndexError caused by a non-authorized CONNACK packet returned by a broker.

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

To use in CPython, pip install adafruit-circuitpython-minimqtt.

Read the docs for info on how to use it.

Network management improvements, KeepAlive

Improvements for KeepAlive

• keep_alive is now an init kwarg
• The loop method now checks the time and sends a PINGREQ (expecting a PINGRESP, this is handled in the ping() method) to the server if the time elapsed is greater than or equal to the provided keep_alive value.

Network Management Improvements
*loop_forever now calls loop instead of _wait_for_msg. Also now handles network control, for both the socket and the NetworkManager (currently only the WiFiManager) objects.

• Properties for network management (is_wifi_connected, is_sock_connected) have been added as well as additional management for both the socket and ESP32SPI wifi module (reconnect_socket, reconnect_wifi)

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

To use in CPython, pip install adafruit-circuitpython-minimqtt.

Read the docs for info on how to use it.

Fix CONNECT for long password/username/client identifiers

This release fixes connect() for use with large (>127 bytes) payloads such as a long password (JSON Web Tokens), client identifier, or last-will message.

• The remaining length calculation previously used by this library has been removed in favor of using the algorithm described by the MQTT V3.1.1 specification (https://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718030).
• Default keepalive value increased to 60 seconds to ensure the MQTT broker rejects incorrect connections, instead of hanging.

To use in CircuitPython, simply install the Adafruit CircuitPython bundle.

To use in CPython, pip install adafruit-circuitpython-minimqtt.

Read the docs for info on how to use it.