Accu-Chek Insight Pump¶
This software is part of a DIY artificial pancreas solution and is not a product, but requires YOU to read, learn and understand the system including how to use it. It is not something that does all your diabetes management for you but allows you to improve your diabetes and your quality of life, if you’re willing to put in the time required. Don’t rush into it, but allow yourself time to learn. You alone are responsible for what you do with it.
WARNING: If you have been using the Insight with SightRemote in the past, please update to the newest AAPS version and uninstall SightRemote.¶
Hardware and software requirements¶
A Roche Accu-Chek Insight pump (any firmware, they all work)
Note: AAPS will write data always in first basal rate profile in the pump.
An Android phone (Basically every Android version would work, but AndroidAPS itself requires at least Android 5 (Lollipop).)
The AndroidAPS app installed on your phone
The Insight pump should only be connected to one device at a time. If you have previously used the Insight remote control (meter), you must remove the meter from the paired devices list of your pump: Menu > Settings > Communication > Remove device
In Config builder of the AndroidAPS app select Accu-Chek Insight in the pump section
Tap the cog-wheel to open Insight settings.
In settings, tap on the button ‘Insight pairing’ at the top of the screen. You should see a list of all nearby bluetooth devices (below left).
On the Insight pump, go to Menu > Settings > Communication > Add Device. The pump will display the following screen (below right) showing the serial number of the pump.
Going back to your phone, tap on the pump serial number in the list of bluetooth devices. Then tap on Pair to confirm.
Both the pump and phone will then display a code. Check that the codes are the same on both devices and confirm on both the pump and the phone.
Success! Pat yourself on the back for successfully pairing your pump with AndroidAPS.
To check all is well, go back to Config builder in AndroidAPS and tap on the cog-wheel by the Insight Pump to get into Insight settings, then tap on Insight Pairing and you will see some information about the pump:
Note: There will be no permanent connection between pump and phone. A connection will only be established if necessary (i.e. setting temporary basal rate, giving bolus, reading pump history...). Otherwise battery of phone and pump would drain way too fast.
Settings in AAPS¶
You must not use ‘Always use basal absolute values’ with Insight pump. In AAPS go to Preferences > Nightscout-Client > Advanced Settings and make sure ‘Always use basal absolute values’ is disabled. It would lead to false TBR settings in Insight pump. As a consequence you will not be able to use Autotune but there is no alternative to disable this when using Insight pump.
In the Insight settings in AndroidAPS you can enable the following options:
“Log reservoir changes”: This will automatically record an insulin cartridge change when you run the “fill cannula” program on the pump.
“Log tube changes”: This adds a note to the AndroidAPS database when you run the “tube filling” program on the pump.
“Log site change”: This adds a note to the AndroidAPS database when you run the “cannula filling” program on the pump. Note: A site change also resets Autosens.
“Log battery changes”: This records a battery change when you put a new battery in the pump.
“Log operating mode changes”: This inserts a note in the AndroidAPS database whenever you start, stop or pause the pump.
“Log alerts”: This records a note in the AndroidAPS database whenever the pump issues an alert (except reminders, bolus and TBR cancellation - those are not recorded).
“Enable TBR emulation”: The Insight pump can only issue temporary basal rates (TBRs) up to 250%. To get round this restriction, TBR emulation will instruct the pump to deliver an extended bolus for the extra insulin if you request a TBR of more than 250%.
Note: Just use one extended bolus at a time as multiple extended boluses at the same time might cause errors.
“Recovery duration”: This defines how long AndroidAPS will wait before trying again after a failed connection attempt. You can choose from 0 to 20 seconds. If you experience connection problems, choose a longer wait time.
Example for min. recovery duration = 5 and max. recovery duration = 20
no connection -> wait 5 sec.
retry -> no connection -> wait 6 sec.
retry -> no connection -> wait 7 sec.
retry -> no connection -> wait 8 sec.
retry -> no connection -> wait 20 sec.
retry -> no connection -> wait 20 sec.
“Disconnect delay”: This defines how long (in seconds) AndroidAPS will wait to disconnect from the pump after an operation is finished. Default value is 5 seconds.
For periods when pump was stopped AAPS will log a temp. basal rate with 0%.
In AndroidAPS, the Accu-Chek Insight tab shows the current status of the pump and has two buttons:
“Refresh”: Refreshes pump status
“Enable/Disable TBR over notification”: A standard Insight pump emits an alarm when a TBR is finished. This button lets you enable or disable this alarm without the need for configuration software.
Settings in the pump¶
Configure alarms in the pump as follows:
- Menu > Settings > Device settings > Mode settings > Quiet > Signal > Sound Menu > Settings > Device settings > Mode settings > Quiet > Volume > 0 (remove all bars)
- Menu > Modes > Signal mode > Quiet
This will silence all alarms from the pump, allowing AndroidAPS to decide if an alarm is relevant to you. If AndroidAPS does not acknowledge an alarm, its volume will increase (first beep, then vibration).
Insight pumps with newer firmware will vibrate briefly every time a bolus is delivered (for example, when AndroidAPS issues an SMB or TBR emulation delivers an extended bolus). Vibration cannot be disabled. Older pumps do not vibrate in these circumstances.
The Insight pump has a small internal battery to keep essential functions like the clock running while you are changing the removable battery. If changing the battery takes too long, this internal battery may run out of power, the clock will reset, and you will be asked to enter a new time and date after inserting a new battery. If this happens, all entries in AndroidAPS prior to the battery change will no longer be included in calculations as the correct time cannot be identified properly.
Insight specific errors¶
Just use one extended bolus at a time as multiple extended boluses at the same time might cause errors.
Sometimes it might happen that the Insight pump does not answer during connection setup. In this case AAPS will display the following message: “Timeout during handshake - reset bluetooth”.
In this case turn off bluetooth on pump AND smartphone for about 10 seconds and then turn it back on.