> For the complete documentation index, see [llms.txt](https://docs.revrobotics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.revrobotics.com/rev-crossover-products/indicators/digital-led.md).

# Digital LED Indicator

## Digital LED Indicator - Overview

The Digital LED Indicator (REV-31-2010) is a LED signal module that is digitally controlled (active low) and offers three colors: red, green, and amber. The Digital LED Indicator is designed to directly interface with the DIO ports of the Control Hub and Expansion Hub.When using the Digital LED Indicator outside of the REV Hub environment, make sure to check that your device GPIO pins’ current sink rating can handle 20mA.

<figure><img src="https://files.gitbook.com/v0/b/gitbook-legacy-files/o/assets%2F-MQJfSTb0sZZYk8WELUn%2F-MS9Q8ZBKRJnfEfpOJxa%2F-MS9T70uyzGAX5zJ3AZf%2FREV-31-2010.svg?alt=media&#x26;token=a9824a98-3cab-4257-ba37-2207a1f2b732" alt=""><figcaption></figcaption></figure>

#### REV-31-2010 Kit Contents <a href="#rev-31-2010-kit-contents" id="rev-31-2010-kit-contents"></a>

| Part Number | Description               | Qty |
| ----------- | ------------------------- | --- |
| -           | Digital LED Indicator     | 4   |
| REV-31-1407 | JST PH 4-Pin Sensor Cable | 4   |


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