Last Reported Widget
This widget shows the timestamp of the last time Blynk received the data from the device.
Settings
Datastream (optional) - choose the Datastream if you plan to use setProperty
API.
Show icon - To show/hide the “Clock” icon on the left.
Show label - To show/hide the “Last reported” text.
Properties you can change
You can hide/show header widgets from device. Use isHidden
property API:
Where:
vPin
is: virtual pin number the widget is assigned to
isHidden
: property that controls the widget visibility
propertyValue
: value of the property you want to change. true and false values are supported.
Example:
Don't put Blynk.setProperty()
into the void loop()
as it can cause a flood of messages and your hardware will be disconnected. Send such updates only when necessary, or use timers.
Change widget properties via HTTPs API
Updates the Datastream Property and all assigned Widgets
GET
https://{server_address}/external/api/update/property?token={your 32 char token}&pin={your vPin}&{property}={value}
The endpoint allows you to update the Datastream Property value via GET request. All widgets (both web and mobile) that are assigned to this datastream will inherit this property. The Datastream Property is persistent and will be stored forever until you change it with another value. In order to clear the property you need to clear the device data in device actions menu.
Example:
https://blynk.cloud/external/api/update/property?token=GVki9IC70vb3IqvsV0YD3el4y0OpneL1&pin=V1&isHidden=true
Path Parameters
Name | Type | Description |
---|---|---|
{server address}* | string | Get from the bottom right of your Blynk console. More information. |
Query Parameters
Name | Type | Description |
---|---|---|
token* | string | Device auth token from Device info |
pin* | string | The datastream virtual pin (should start with "v") |
{property} | string | The property of the widget you want to update: |
isHidden | string | true or false |
Last updated