python-uart-pi-xbridge

Hope you guys having fun with this Repo. It is not finished yet. Things working so far are wixel Python communication (I think needs a bit more testing but runs well). Sending data as wifi-wixel to xdrip. Calculate cgm Blood Glucose based of xdrip calc and hardcoded intercept and slope.

Implemented functionality

calculate calibrations double calibration
calculate single calibrations.
Start/Stop Sensor
All data stored in sqllite db
calculate CGM BG based on received raw data and determined calibration
upload entries to mongo
export data from sqllite2json

If using rpi to get Started you will need to:

deactivate ttyAMA0 on Kernel via raspconfig Otherwise the one and only UART is used for Kernel messages and login

If using Intel Edison you can use /dev/ttyMFD1

you have to change ser = serial.Serial('/dev/ttyMFD2', 9600) to ser = serial.Serial('/dev/ttyMFD1', 9600) and change os.system('systemctl stop serial-getty@ttyMFD2.service') to #os.system('systemctl stop serial-getty@ttyMFD2.service')

If using Intel Edison you can use /dev/ttyMFD2

Script will deaktivate Kernel Konsole on ttyMFD2 on startup.
You can use xBridge2 excample or xBridgeOaps excample. For best results use xBridgeOaps there is a bootup delay implemented to prevent edison to not boot while edison is sending beacon telegramms at startup to console ttyMFD2.
Connect Wixel to pi via GPIO See -> Hardware for rpi or See edison_hardware.pdf
Use Wixel.py for test. Put your Transmitter ID as an constant in the Script.
Take the red pill and stay in Wonderland. :-)

Hardware

use org wixel pinout atached directly to pi

Wixel / PI Pin connections

Wixel TX Pin 1_6 -> PI GPIO PIN 10 RX

Wixel RX Pin 1_7 -> PI GPIO PIN 8 TX

Wixel 3V3 Pin -> PI GPIO Pin 17 3v3 Power