I agree with you. There’s a hack to make C-IQ more aggressive by entering your weight higher than reality.
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OOOOH! The one time you lie about your weight with a higher number! Cool!
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Overall, while “some” AI is helpful, it does seem to assume an awful lot - such has assuming the number and times of meals (I eat maybe 2x a day - if that), assumptions that everyday - both in terms of bg behavior (or misbehavior) and what we do during the day is consistent. I do know tht I will have to suck it up and change over, but it will be kicking and screaming (which is highly aerobic exercise-wise and will throw everything off)
Before I started 24 hour sleep mode, I used a target of 95. I’ve found I’ve traded a bit of time under 70 for a little bit of time just above 140. My time in tight range and my A1c haven’t changed. The higher target is probably less of an issue than we often think.
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Another question (from the grumpy one!) Can I still use my pump - and only my pump - as the receiver? I don’t want to use the phone app - I already have to carry a work smart phone just about 24/7, and don’t want to have to carry my personal phone 24/7 as well. Thanks
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Yes, you can still use just your pump! I choose to also use my phone because it’s convenient for me, but the pump by itself can still be your sole CGM receiver.
This made me laugh 
Too true!
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The have to use real people because the results depend on having the sensor inserted into a real living human being; results do vary by human. The standard technique is to use YSL gear to measure the actual veinous (I believe) BG.
They also log all the test subjects, so it is possible to slice’n’dice by human; age group, race, sex, height, BMI… That needs a lot more data (a lot more tests).
Amusing fact; you can get the relevant YSL test machine on eBay for less than an EverSense sensor…
Thanks. I had a smart phone for work (on call alot) before they were consumer goods. I was already “over it” by then. But I have one,and it does come in handy. If I had to use my phone for my T1D (having to carry a separate device is a main reason I am not interested in the Omnipod) I’d have to go to the hardware store for one of those leather toolbelts - not my idea of a fashionable accessory. I retired from a large city fire/EMS dept. I used to walk to the Sprint store to pay my monthly bill (and grab a coffee). One day, a young woman came into the store, she was hysterical. Her phone had died. The gys at the Sprint store stepped up and offered to fix her phone. They told her to go grad a coffee and come back in 20 minutes and her phone wold be fixed - no charge. She burst into tears! “What! 20 minutes without my phone!!” The Sprint guys knew me, and asked if there wasn’t something I could do. I simply asked if they saw a drug bag with me. Nope!
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Does C-IQ use your pre-programmed basal rates as a starting point, and make adjustments from there? Or does it come up with it’s own basal rates?
I always thought it used pre-programmed basal rates, but not 100% sure because I have never used that pump.
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You don’t need a second phone or the receiver for the Omnipod 5 except for meal boluses and for swapping the pod. The receiver isn’t a 'phone so it shouldn’t violate secure environment requirements; it might have a camera, like the old Dash one, but it didn’t work on the Dash and, anyway, the receiver is completely locked down.
In other words the Omnipod 5 is, from the comms point of view, functionally identical to the T.slim after start up (I admit I don’t use either). The main difference is that the 'pod gets changed every three days and the receiver (or 'phone) is required to transfer the data from the old 'pod to the 'new one. The second, obvious, difference is that there is no way to enter carbs without the receiver (or 'phone).
As in the T.slim the pump (the 'pod) is the Dexcom/Abbott sensor “receiver” so both just keep working and correcting. I think there is a Medtronic (the 780g) which functions the same way. These are all “hybrid” closed loop systems; the programmers expect us to enter carbs. However I have found (using Dash+AAPS) that I can skip the meal bolus if I limit carbs to well under 50g/day, no more than 20g/meal. This is because my carbs are all slow ingestion and the automatic adjustments of AAPS handle the rising BG when it happens.
For the iLet and the twiist I’m less sure but the Abbott page here suggests they all communicate directly (so no 'phone required):
That page does not consider FOSS systems like AAPS which has had “autobolus” forever, however a FOSSS is only the AIDS; not the pump, so the FOSSS would have to be installed on the pump (as in the twiist) to obviate the need for a third piece of kit.
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Yes, it bases all its changes on your pre-programmed basal rates! If you’re steady (oh, those glorious minutes), then it just uses your programmed rate.
The Tandem app is kind of cool because you can see a graph of your basal rates. They’re the blue lines under the CGM trendline. The solid rectangle is my programmed rate, and the small blue slices (or red) are the adjustments CIQ is making.
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Yep, that’s basically the same way it does it with Loop!
Thanks! That’s what I thought.
This is useful for me, because I know at some point the geniuses at Insulet will decide to discontinue Dash. And I need to have a plan in place my next pump.
The silly O5 algorithm isn’t going to work for me.
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It uses the basal rate that is set in the profile. WhenBG drops below 110mg/dl it will reduce basal a small amount, At around 70mg/dl it will reduce basal to zero. The other side of the coin is when BG rises it will increase basal above the set rate. If BG is really going high it will do a correction bolus based upon the correction factor in the profile.
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How does a person’s weight factor in? Do they use weight instead of a correction factor?
I’m not sure. The profile has basal, u:g and CF, weight is under C-IQ.
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This is what GEMINI AI says….
Here’s a breakdown of what the weight setting controls:
💡 Initial Setup and Safety
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Enabling Control-IQ: You must enter both your weight and your Total Daily Insulin (TDI) to turn on Control-IQ technology. The system needs these values to ensure safe operation before it begins to gather its own data.
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Safety Limits: The weight and TDI are used by the Control-IQ algorithm to impose safety limitations on the amount of insulin the system can deliver, particularly during the automatic basal adjustments and correction boluses.
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The algorithm recognizes that someone who weighs less and has a lower TDI will be much more sensitive to insulin than someone who weighs more and has a high TDI.
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This initial input helps the system limit the aggressiveness of its automatic adjustments, preventing it from delivering an excessive dose that could cause hypoglycemia (low blood sugar), especially in the early days of use.
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🧠 The Algorithm’s ‘Learning’
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Total Daily Insulin (TDI) is generally considered the more impactful of the two initial settings. While the weight and TDI are entered at setup, the Control-IQ system quickly substitutes the TDI value with actual data from your pump’s delivery history to inform its calculations. This is essentially the system’s only “learning” component.
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The weight setting, once entered, acts more as a guardrail to define the appropriate operating range for the algorithm based on your body size, ensuring the system functions within its safe and approved parameters.
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