Tandem Control-IQ™️ technology and Tidepool — Where we are today

Normally posts like these are written to celebrate and highlight new features that have just been released. In this case, we want to address the increase in conversations about Tandem Diabetes Care’s t:slim X2 with Control-IQ™ technology, and the state of Tidepool’s software support for this technology.

Tidepool provides free software that works with most diabetes devices, including Tandem’s insulin pumps, thanks to the support and cooperation of Tandem. You can use Tidepool to view, share, and donate your device data as you see fit. With Tidepool, it’s your data, and you’re in control.

How Tidepool works with Tandem pumps

Using Tidepool Uploader and the micro-USB cable that comes with your Tandem pump, you can upload all of your data — insulin, carbs, and CGM (continuous glucose monitor) readings — from your pump to your free cloud-based Tidepool account.

From there, you can click “See data” and be taken to Tidepool Web to see your data.

Here’s where things get tricky: We’re still in the process of working closely with our partners at Tandem to update our software to fully support Control-IQ™ technology and all the new Events that that software update is generating. While you can view data from t:slim X2 pumps with Control-IQ™ technology, until we announce full support, please exercise caution when using Tidepool software to help you make changes to your pump settings.

That said, here’s what you can see today in Tidepool Web to get specific insight into how Control-IQ technology is working while we complete our updates.

In the Basics View, you can see how many basal rate changes and suspensions have occurred over a three-week period.

In the Daily View, you can see all your blood glucose, carb, and insulin data synced up together.

You can see how often your basal delivery is changing over a 24-hour period, and get more insight when you hover your mouse over the basal delivery section.

Boluses and carb entries are visible, as well. The short bars are automatic correction boluses initiated by Control-IQ technology.

Work required to officially support Control-IQ technology

Our team is well aware of a few known issues that we intend to address. As a team, we’ve identified a number of changes and updates we can make to our software to better support Control-IQ technology, including but not limited to:

• We know that we want to show you which activity is enabled: No Activity, Exercise, or Sleep.
• We want to help you clearly and quickly differentiate between boluses that were user-programmed versus those that are automatic correction boluses, both in the Daily View and in our Basics View.
• We want to add insights around how much time you’re spending with each activity enabled when using Control-IQ technology.
• We also intend to explore how we can pull in more data for you regarding your Tandem t:slim X2 device settings.

While we do not officially support Tandem's t:slim X2 with Control-IQ technology yet, and we have more work to do, we continue to offer a free, available, always on, and always easy-to-use solution for Tandem users running macOS 10.14 (Mojave) and 10.15 (Catalina) or Windows (8.1 and 10, 32 and 64-bit versions) respectively. We’ll be back soon once we’ve completed our work to detail and document all of the Control-IQ technology specific updates listed above and what you can expect from Tidepool moving forward.

If you’d like to take Tidepool for a spin, you can begin by creating your free Tidepool account at tidepool.org/signup.

If you’d like to be notified as soon as we’ve completed our work to fully support Tandem's t:slim X2 with Control-IQ technology, please send an email to support@tidepool.org.