Gradient Ramp

Overview

The Gradient Widget provides intuitive data visualization through a sloped bar with a smooth color gradient. It’s designed to represent values on a continuous scale, helping users interpret trends, thresholds, and performance metrics at a glance.

Common use cases include displaying:

• Signal strength

• Temperature levels

• Battery status

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Settings

Setting	Description
Title	Optional. Set a custom name for the widget.
Datastream	Choose the datastream to visualize.
Override Min/Max	Optionally override the datastream’s default min/max value limits.
Gauge Shape	Choose visual style: • Solid • Ascending • Descending
Show Min/Max Values	Toggle display of the min/max values on the widget.
Show Value	Toggle display of the current value.
Show Bottom Label	Show or hide the label below the widget.
Ramp Color	Choose a solid color or gradient appearance.

Gradient Ramp

Limits

• Bottom Label: Maximum 100 characters

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Controlling Widget from Hardware

You can update widget properties programmatically using:

Blynk.setProperty(vPin, "widgetProperty", "propertyValue");

Where:

• vPin — Virtual pin assigned to the widget

• widgetProperty — Property you want to change

• propertyValue — New value for that property

Warning: Avoid placing Blynk.setProperty() in the loop() function — this may flood the server and disconnect your device. Use timers or event-based updates instead.

Supported Properties

You can change the following properties from hardware or via the HTTP API:

• label

• isHidden

• isDisabled

Example (hardware):

Blynk.setProperty(V1, "isHidden", "true");

Example (HTTP API):

https://{server_address}/external/api/update/property?token={your_32_char_token}&pin=V1&isHidden=true