Shelly Plus H&T web interface guide
To connect to your Shelly Plus H&T, connect your device to the Wi-Fi network with a name(SSID) like ShellyPlusHT - 7C87CE6CE174. Use the universal IP address for all Shelly devices - 192.168.33.1 to access your device's Web Interface, where you can set a Wi-fi network for the Shelly Plus H&T to connect to. Once done, through the app on your mobile device or through home.shelly.cloud, you can go into the Settings and search for Device information. There you will find the Device IP and be taken to the Web Interface of Shelly Plus H&T.
Read the full user installation guide to get started with your Shelly Plus H&T.
General - Home page
In the web interface, you will see five icons at the top of the screen, including one for AP, Wi-Fi, Bluetooth, Cloud and MQTT connection. Here is what the different status colors mean:
AP icon:
Gray: AP mode is disabled.
Blue: AP mode is enabled.
Wi-Fi icon:
Gray: Wi-Fi connection is disabled.
White: Wi-Fi connection is enabled, but not established.
Blue: Device is connected to Wi-Fi.
Bluetooth icon:
Gray: Connection is disabled.
Blue: Connection is enabled.
Cloud icon:
Gray: Connection to Shelly Cloud is disabled.
White: Connection to Shelly Cloud is enabled, but not established.
Blue: Device is connected to Shelly Cloud.
MQTT icon:
Gray: MQTT is disabled.
Blue: MQTT is enabled.
In the home page of the Web Interface, you will see the temperature and relative humidity readings as well as the battery of the device.
Sensor settings
Temperature unit
From the drop-down menu, select the temperature unit, which will be used to display the temperature on the device's display. You can choose either Celsius or Fahrenheit.
Temperature delta threshold
Choose a value between 0.5 and 5 from the drop down menu, which will set the threshold for triggering a device wake up. However, the device sends status updates as often as every 5 minutes, so if the device’s temperature changes suddenly and surpasses the threshold, the change will still be reported after 5 minutes from the last report have passed and not at the exact time it happens. You can also choose to disable this option. To save the changes, click OK.
Temperature offset
Allows you to adjust the readings of the device to account for any heat that is emitted by the device itself. By setting a temperature offset, you can ensure that the readings are more accurate and reflect the actual temperature of the environment.
Humidity delta threshold
Set the humidity threshold in percent, which will trigger a device wake up. You can type in a value between 1% and 20% in the text box. Relative humidity change with more than the specified value triggers the device to report sensor data. To save the changes, click Apply.
Humidity offset
To make the humidity readings more accurate, set an offset. This is a value, which will be added to / subtracted from the readings.
Actions
Configure the actions for your device - create new actions, edit existing actions or delete actions. When creating actions for your device you will need to specify the condition on which the action occurs. You can also set a duration for your actions, as well as a URL to be hit when the condition for the action is met.
Settings
Network settings
Access Point - Configure the device's AP, including switching it on or off, and setting a password. The access point of the device is an open network by default. The SSID is unique and cannot be changed.
WiFi - Register the Shelly device to connect to up to 2 different Wi-Fi networks.
Either input or select the Wi-Fi network. Can select an open network, and also set a static IP address.
Enable Wi-Fi 1, or Wi-Fi 2, or both at the same time. If both Wi-Fi 1 and Wi-Fi 2 are enabled, and the Shelly device disconnects from one of the networks, it will connect to the other.
Bluetooth - Disable/enable Bluetooth by toggling the switch. The device's default Bluetooth setting is enabled.
Connectivity
Cloud -Connecting your Shelly to its cloud allows you to control it remotely, receive notifications and updates about your devices. The default for this setting is for the cloud to be enabled. If you disable the device cloud support, you will lose connection to your device from outside its local network!
MQTT - Configure the Shelly device to execute actions via MQTT. By default, MQTT is disabled, but you can enable it by toggling the switch. Changing these settings will cause the device to reboot. There are some other settings, such as RPC status notifications over MQTT (which enables you to communicate with your device through RPC notifications) and Generic status update over MQTT (to get an overall status update), which you can enable/disable by toggling the switches on their right. You can also enable SSL and type in your server, username and password, but be aware that enabling SSL will hurt the battery life and most likely shorten it by half.
Outbound Websocket - Specifies whether the HTTP channel creates an I/O exception when an inbound connection is closed while still in use by the servlet. By default, this setting is disabled. To enable it, click the toggle switch next to Enable. Enter your service address in the text box and from the drop-down menu under SSL Connectivity choose *, ca.pem or user_ca.pem.
Device settings
Device info - See your device’s ID, the Wi-Fi it’s connected to and the Wi-Fi RSSI.
Location and timezone - Your timezone and location will be autodetected, but you can manually change them from this setting by choosing a timezone from the drop-down menu and typing in your latitude and longitude. There is also a button Auto detect location, which will make the device automatically detect the location once again if it failed the previous time.
Authentication - If you enable authentication, you will be asked to type in a password, which you will then use to access the Web UI of the device. Once enabled, to disable it, click the toggle and enter your authentication pass once prompted.
Firmware - In this setting, you can see your device's ID, Firmware version and build ID, as well as the Web build ID. You can also see the available new versions, check for updates and easily update your device. There is also an option to upload your own firmware, however flashing devices with custom firmware irreversibly voids the device warranty.
User certificate - Upload custom SSL certificate by dragging and dropping the file or by browsing your files, which you can do by clicking the designated button.
Debug - This setting includes Mqtt, Websocket and Udp debug. To enable any of these, click the toggle switch next to the specific setting. For Udp debug you will also be asked to type in a udp address.
Diagnostics
From this setting you can download the debug logs. Enabling the debug log without a reason isn’t recommended, since your device will be slowed down and this setting will cause aging of the flash memory. If you do decide to enable it, you can also download the previous and current logs. Be aware that leaving this page will reset the logger and logged data.