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OpenMQTTGateway v0.9.7 released

Release time!

The 0.9.7 brings a lot of features and improvements to BLE and TLS functions.

  • The support of a generic BLE connection to devices, you can now trigger a READ/WRITE to a BLE device through your ESP32 with MQTT. The gateway will initiate a connection to the device and acts on the service and characteristic given. For a value reading or writing. This opens a lot of integration possibilities, among others the control of actuators, valves, light, relays…
    It could also be a good way to test a value retrieval with a BLE connection before asking for a native integration into the gateway.

Example MQTT message format:

mosquitto_pub -t home/OpenMQTTGateway/commands/MQTTtoBT/config -m '{ "ble_write_address":"AA:BB:CC:DD:EE:FF", "ble_write_service":"cba20d00-224d-11e6-9fb8-0002a5d5c51b", "ble_write_char":"cba20002-224d-11e6-9fb8-0002a5d5c51b", "ble_write_value":"TEST", "value_type":"STRING", "ttl":4 }'
  • Efforts have been made around the security connection functions, the TLS connection can now be configured within the configuration web page by adding the server root certificate (copy&paste) and checking a box.
    You can alternatively use self-signed certificates and even several sets of them, if you want to handle several MQTT servers. With this comes also the ability to change the MQTT server by MQTT, with automatic return to the previous configuration if not working.

  • So as to make the update of the gateway you are now able to trigger it through MQTT, if the version is different than the current one and if the password is OK, the gateway will download and install the linked firmware.

mosquitto_pub -t "home/<gateway_name>/commands/firmware_update" -m '{ "version": "test", "password": "OTAPASSWORD", "url": "" }'

But that’s not all, let’s take a deeper look at all the new devices and features!

New devices:

New features:

Under the hood:



Deprecate - functions that will be removed or modified on the next release:

  • The default gateway name for ESP will be generated automatically from the MAC address per default, OpenMQTTGateway in the AP name and the topic will be replaced:
    AP Name: OMG_112233445566
    Topic: home/112233445566/BTtoMQTT
    Setting the Gateway_name will not be needed anymore unless you want to do it explicitely.
  • SimplePublishing and simpleReceiving methods will be removed see why here