Last updated
Last updated
This widget allows the user to interactively specify a time value simply as hours and minutes, or in detail with the day of the week, sunrise/sunset, and/or timezone. A single time selection, or both start/stop times may be configured for input.
Select or create a datastream of string.
When the widget is tapped, a window pops up that allows the user to interactively specify the time value in 24 hour format. Make sure to tap the “OK” button at the top right when the input is finished.
TIME FORMAT - choose a time display format from the options of: HH:mm, HH:mm:ss, HH:mm - aa, HH:mm:ss -aa. All in 24 hour format.
Allow start/stop input - when disabled, only one time input is presented. When enabled, both start and stop time input is presented.
Allow day of week selection - presents the days of the week Sun .. Sat for the user to select from when enabled. The selection is displayed in the lower left of the widget.
Allow sunset/sunrise selection - adds option of sunrise or sunset to the start/stop selection.
Allow timezone selection - adds an option of selecting the time zone from a list.
When the number is entered into the widget input field or +/- tapped, the new value is sent and stored into the Blynk.Cloud. After that it's sent to your device.
The time selections are assigned to the datastream as an array with four elements (0..3).
HTTP API call :
You can change the value of the datastream assigned to the widget with the hardware or HTTP API.
For a datastream V1 assigned data type of [string/integer/double/enum/location]:
Hardware:
HTTP API:
You can change certain properties of the Widget from your hardware. For that, use this command:
Where:
vPin is: virtual pin number the widget is assigned to
widgetProperty: property you want to change
propertyValue: value of the property you want to change
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.
Widget will be greyed out on UI and users won't be able to tap on it.
Widget will be hidden from dashboard. Design your UI so that it doesn't look weird when there is no widget.
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=V2&label=My%20Label
https://blynk.cloud/external/api/update/property?token=GVki9IC70vb3IqvsV0YD3el4y0OpneL1&pin=V1&color=%23D3435C
https://blynk.cloud/external/api/update/property?token=GVki9IC70vb3IqvsV0YD3el4y0OpneL1&pin=V1&isDisabled=true
Don't put Blynk.virtualWrite()into the void loop() as it can cause a flood of messages and your hardware will be disconnected. Send such updates only when necessary, use flags, or .
Sketch:
Sketch:
Sketch:
You can change the properties label, color, isDisabled, isHidden of the widget from your hardware, or via an . The URL must be encoded, so spaces in labels must be replaced with %20, and color hexadecimal values in the HTTP API URL must include the hash # character urlencoded as %23.
You can update your hardware to the latest datastream value from Blynk.Cloud after your hardware went offline, and then came online again. Use Blynk.syncVirtual() to update a single virtual pin, or Blynk.syncAll() to update all virtual pins. See for more details.