Can you elaborate on the interface of the Dexcom? If it's only USB, then the IOIO-OTG as it is will not offer a complete solution, as its USB port is going to be busy talking to the a Bluetooth dongle communicating with the Android. If you can gain a lower-level access to the Dexcom (e.g. I2C), then it is possible that this will become an easy project (at least to the point of a working prototype).
On Mon, Jul 14, 2014 at 3:43 PM, Ben <[email protected]> wrote: > Hello, > > Have a look at http://droidalyzer.com/tech.html . It is based on IOIO > V1 but it does more or less what you would like. > > It has a battery of only 400mA, thus you might want to have a more > powerful one to have a battery life similar to the one of your mobile phone > (we use 2000 mA) > > You might also want to make your own IOIO based on an IOIO OTG using this > component https://www.sparkfun.com/products/11231 to charge your battery > and obtain the necessary voltage out of a single cell battery. > > The Bluetooth connection between the IOIO and the mobile often drop. > Always assume that connection might not work for an undefined period of > time (what should you do then, ring an alarm?) . > > The mint case will for sure not be big enough for the IOIO, the battery > and the Dexcom: you can design one fitting exactly your need and have it > 3D printed (we use http://www.sculpteo.com/en/) > > Even though an interesting exercise for yourself, be extremely cautious > about making any medical claim ... you are trying to build a medical device > and those are rightly heavily regulated (FDA or similar organisation). > Please note the disclaimer for the Droidalyzer and it is just an alcohol > sensor not a medical device. > > So it looks like an interesting experience for you but for the large scale > usage, I would wait the Dexcom to make an app connecting their sensor with > the mobile. It seems that from a technology point of view all the things > are there to make this. That would be one device less to carry / recharge.. > and it will be a lot lighter. It might be worth checking their plan before > investing too much time/money. > > Good luck, > Ben > > > > > > > > On Friday, July 11, 2014 6:28:50 PM UTC+2, Jonathan Moore wrote: >> >> I am sure I am messing up the terminology here so please forgive me. Let >> me try to explain what I would like to do and hopefully someone here can >> tell me to pound sand that this will not work or offer some insights on >> this working and direct me to the right resources. =) >> >> I and my son are Type 1 Diabetics and controlling blood sugars is always >> a challenging process throughout the day especially for my son who is not >> always as careful as he should be in monitoring his blood sugars. We use a >> device called a Continuous Glucose Monitor that basically checks the blood >> sugars every 5 minutes and sends a signal to a receiver that is wireless. >> The device is called Dexcom. >> >> The diabetes community is in love with this device and there have been >> some people that have been able to develop tools to make this device upload >> its data to the cloud and thusly be able to view the real time blood sugars >> remotely. This is a huge development and allows parents like me to monitor >> our son's blood sugars wherever he is. >> >> So this open source project is still in its infancy and right now you >> have to use USB-OTG cable to connected to the Dexcom Reciever directly to >> the Android phone. The android software connects to the Dexcom unit through >> the cable and downloads the Blood Sugar readings then uploads the blood >> sugars to the cloud database. This works wonderfully but has some slight >> issues. >> >> The USB-OTG cable must be plugged into the Dexcom and Phone the whole >> time to get the readings which makes the process a little difficult and >> also requires you to dedicate a phone to that device. Also the USB plug on >> the Dexcom is rather weak and is prone to breaking. >> >> I am hoping this is where you guys can help me out. I would like to see >> if we could use IOIO in bluetooth mode. Basically make the Dexcom wireless >> and communicate to the Android phone without the need of a usb connector >> being connected to the Phone? >> >> It looks like that IOIO can do this but, I am not that strong in my >> programming chops to really know if this is possible. >> >> This is the Github source for the open source project. >> >> https://github.com/nightscout >> >> The facebook community >> https://www.facebook.com/groups/cgminthecloud >> >> If this is possible you guys don't understand how huge this will be for >> parents to being able to free up their child from having to always being >> around an adult. It takes the tether and makes it portable so that we can >> monitor them piratically anywhere. >> >> The idea is if this is possible we can come up with some kind of case >> that puts the IOIO in it with a rechargeable battery pack and then Dock the >> Dexcom device into it. And then have it connect through bluetooth to the >> android phone of choice to upload the data. >> >> Hopefully this makes sense and please tell me this can be done. =) >> > -- > You received this message because you are subscribed to the Google Groups > "ioio-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/ioio-users. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
