---
title: Dexcom
description: Instructions on how to integrate your Dexcom CGM data into Home Assistant.
ha_category:
  - Sensor
ha_release: 0.113
ha_iot_class: Cloud Polling
ha_config_flow: true
ha_codeowners:
  - '@gagebenne'
ha_domain: dexcom
---

The Dexcom integration allows you to view your CGM data from [Dexcom](https://www.dexcom.com/) in Home Assistant.

## Configuration

<div class='note warning'>
Some people have had problems with connecting when their Dexcom passwords are entirely numeric. If you have connection issues in that case, try changing your password to something with a mix of numbers and letters.
</div>

You will need to set up the [Dexcom Share](https://provider.dexcom.com/education-research/cgm-education-use/videos/setting-dexcom-share-and-follow) feature in your Dexcom G6 App to use this integration. Once you have done that, perform the following steps.

To add `Dexcom` to your installation, go to **Configuration** >> **Integrations** in the UI, click the button with `+` sign and from the list of integrations select **Dexcom**.

#### Server

There are two Dexcom Share servers, `US` for United States customers, and `OUS` for all customers outside of the United States.

#### Unit of measurement

The integrations allows both `mg/dL` and `mmol/l` units of measurement for blood glucose values. To change your preferred unit of measurement, got to **Configuration** >> **Integrations** in the UI, and click `OPTIONS`.

### Sensor

If you have a sensor session running, and once you have enabled the Dexcom integration, you should see the following sensors:

- Blood glucose value sensor
- Blood glucose trend sensor

### Example Automation

```yaml
- id: '1234567890123'
  alias: overnight_low_kitchen_lights
  description: Turn on the lights in the kitchen if my blood sugar drops low overnight
  trigger:
  - below: '65'
    entity_id: sensor.dexcom_YOUR_USERNAME_glucose_value
    platform: numeric_state
  condition: time
    after: '22:00:00'
    before: '06:00:00'
  action:
  - service: light.turn_on
      data:
        entity_id: light.kitchen
```
