Shelly Plus H&T

 

Shelly Plus  H&T is a battery powered sensor of temperature and humidity. It also provides the possibility of charging by USB C. This plugin brings a full coverage for the device. Creates a temperature and a humidity sensor that can be used in other Fibaro automations.

 

Setup is pretty straight forward. 

 

Prerequisities:

 

1. A running MQTT broker. Best choice would probably be the Mosquitto broker.https://mosquitto.org/download/

2. You need to enable the MQTT control in the device's setting. It should be enabled by default, but in case it’s not, you can enable it on the device's web interface. (YES, this device provides a WEB interface, where you can set up everything. Please follow the manual, how to enable device’s AP point, so you can login to its interface. You will find it under newtork settings.

3. Under newtork setting, you have to enable MQTT control, set a topic prefix, and provide credentials for the MQTT broker.Please be sure, that you remember your MQTT prefix, as it will be needed later in the plugin,

 

 

4. Set all quickapp variables. 

 

MAIN_TOPIC - The MQTT prefix, given in MQTT settings, Mandatory

 

BROKER_IP - The broker IP address, Mandatory

CLIENT_ID - The client name / your name for the device, Mandatory

BROKER_USERNAME - The username for the broker log in, Mandatory

BROKER_PASSWORD - The password for the broker log in, Mandatory

USERTONOTIF - Users IDs to get notifications about connection statuses. Set to 0 if not needed.

 

5. The parent device of the plugin provides some useful information, and error messages.

6. There will be two child devices created. One temperature, and one humidity sensor.

Update:

• Added buttons for unsubscribe from all topics
• Added button to disconnetc from the broker,
• Added button for Restart the plugin. Restart always initiate the subscriptions again.
• Added quickapp variable USERSTONOTIF. Provided user IDs will be informed by push messages about connection statuses or some other errors.
• Added HTML and CSS, so please uncheck the Use the new views in mobile application in advanced tab.

Please note, that according to Shelly Support, the MQTT support is under
a rework. It can, and will be changed. Hopefully, the main functionality stays the same.Also bear in mind, that this is battery device, so reports are reduced to spare battery life.However after a deep testing period , i can tell, that it works perfectly.

 

A few words about reporting

Measuring and reporting

On batteries

When running on batteries the Device behaves as follows:

1. Wakes up every minute to do a measurement. If there is a 0.2 °C temperature or 3% humidity difference the screen updates. The default threshold for reporting is a change of 0.5 °C or 5%. If the change is less there will be no report sent.

2. If for two hours there is no report based on threshold values, the Device unconditionally (disregarding threshold values) reports its status to Shelly Cloud and other connected channels.

3. Due to self-heating a cool down period of 5 minutes is imposed. During this period the Device would not wake up at all.

On USB power supply

If powered via its USB port the Device will wake up every 5 minutes, perform a measurement, update its screen, unconditionally report to all connected channels, and sleep for 5 minutes.

 

Regards , NEO

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