DexDrip for Wixel

What is it?

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

How do I use it?

Its easy!

• step 1: Clone the repo!

  • Using Git: git clone https://github.com/StephenBlackWasAlreadyTaken/wixel-DexDrip.git
  • Scared of Git? Download the ZIP and unpack it!

• step 2: Install the Wixel drivers and software

  • You can find them here!

• step 2.5: Modify the top section of the file apps/dexdrip/dexdrip.c to fit your needs

  • Likely you will want to enter your actual transmitter id, and set only_listen_to_my_transmitter to 1.

  • Leaving usbEnabled at 0 will allow you to listen for updates from your dexcom over usb, handy for debugging, also it will let you reload files onto your wixel with ease. setting usbEnabled to 1 will result in better battery life, but you loose the ability to listen for updates over usb AND if you want to update the file on your wixel, you will need to jump the wixel into BootLoader mode. see this for instructions on getting the wixel back into bootloader mode.

• step 3: Run the MAKE command to generate a file you can install on your Wixel

  • In your terminal/command prompt head to the directory where you cloned/unzipped this repo.
  • Run make
  • You should see a lot of lines that end something like

  Linking apps/dexdrip/dexdrip.hex
  Packaging apps/dexdrip/dexdrip.wxl
  packihx: read 413 lines, wrote 779: OK.
  

• step 4: Load the app

  • plug your wixel in to your computer and follow these steps to install your app!

• step 5: Done with this part! Now hook it up to something!!!

NOTE:

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.

Whats a dexcom?

Its an amazing CGM (continue glucose monitor) that many Diabetics use to keep track of their glucose levels in real(ish)time

Why this then?

The current dexcom has its own proprietary reciever that unfortunately cannot talk to phones unless using a project like NightScout Which is an awesome project I HIGHLY recomend you check out

HUGE PROPS TO:

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

LINKS

• Project Site
• What you will need & Diagrams
• Wixel App
• Android App