This project can be loaded onto a wixel, it will catch the wireless signals sent from a dexcom transmitter, read, break up the different parts, and then send it using UART so it can be retransmitted through Bluetooth
Its easy!
step 1: Clone the repo!
git clone https://github.com/StephenBlackWasAlreadyTaken/wixel-xDrip.gitstep 2: Install the Wixel drivers and software
step 2.5: Modify the top section of the file apps/xdrip/xdrip.c to fit
your needs
only_listen_to_my_transmitter to 1.status_lights = 1 will blink the yellow light whenever it is searching for a packet (also you may notice a faint red blink when it strobes the radio) Setting it to zero will make it not blink (the red strobe will still happen though)step 3: Run the MAKE command to generate a file you can install on your Wixel
sdcc -v if you get the error sdcc: command not found then you need to install it!curl -O http://sourceforge.net/projects/sdcc/files/sdcc-macosx/3.4.0/sdcc-3.4.0-universal-apple-macosx.tar.bz2 -L; tar xjf sdcc-3.4.0-universal-apple-macosx.tar.bz2; cd sdcc-3.4.0/bin; sudo cp -r -n * /usr/bin; cd ../share/sdcc;sudo mkdir /usr/share/sdcc;sudo cp -r -n * /usr/share/sdcc;
it should ask for your password, just type in your macs password and hit enter (Note that you will not see anything while typing the password)
Cool, now if you run sdcc -v you should see something like SDCC : mcs51/z80/z180....
Now back to our wixel app!
In your terminal/command prompt head to the directory where you cloned/unzipped this repo.
Run make
If you dont already have Command line tools installed it will ask you if you want to install them, just say yes and let it do its thing (note, on a mac version earlier than maverics, you will need to download xcode manually in order to install command line tools)
If successfull you should see a lot of lines that end something like
Linking apps/xdrip/xdrip.hex
Packaging apps/xdrip/xdrip.wxl
packihx: read 413 lines, wrote 779: OK.If you don't already have SDCC installed, open a terminal and run the command 'sudo apt-get install sdcc' and follow the instructions on screen (enter password, confirm with 'y', ...). (Not sure if installed?: run 'sdcc -v'. If the result is '/usr/bin/sdcc: No such file or directory', install it.)
If it is installed, the version number returned on the command 'sdcc -v' should be at least 3.3.0
From now on, you can follow the instructions for MAC starting from "Now back to our wixel app!".
Install the wixel development bundle for windows from here (you need this in addition to the drivers you downloaded in step 2!!)
Open a command prompt (should be under start menu -> programs -> accessories -> Command Prompt)
Cd into the folder you downloaded this repo to (ex. cd C:\Users\<computer name>\Desktop\wixel-xDrip)
now run make_all.bat by typing make_all.bat into the command prompt
You should see a lot of lines that end something like
Linking apps/xdrip/xdrip.hex
Packaging apps/xdrip/xdrip.wxl
packihx: read 413 lines, wrote 779: OK.step 4: Load the app
step 5: Done with this part! Now hook it up to something!!!
The wixel will transmit the data out over uart using pins p1_6 and p1_7 at a baud rate of 9600, feel free to change that in the code if you need.
Adrien De Croy for writing most of this for his Dexterity Prject!
Lorelai for pointing me to all of these great resources and then also allowing me to use large portions of her code.
John Stevens for further improving on Adrians code, which I also then used!!
Wow.. Im begining to think I didnt do anything other than copy and paste these peoples works...
Don Brown over at dexwatch for initially pointing out that this is a possibility to me!
Ben West, John Costik and Scott Leibrand their awesome work with Nightscout and various other projects!
And all the other awesome people that helped me out and contributed to awesome projects like NightScout