Smoker Beacon

Take the output from a thermocouple, input through a PCDuino and transmit via BLE Beacon to a Cordova Android App.

App

• Receives output showing the temperature from one or more thermocouples
• Configurable min/max temperature alarm
• Uses Apache Cordova to select and receive Beacon
• Beacon assumed to have two fields:

1. Major: ID of Thermocouple
2. Minor: Temperature

N.B. Not included in this repo

Items needed:

• pcDuino3 http://www.linksprite.com/?page_id=812
• csr bluetooth V4 dongle

TL;DR - To run the system by hand, execute dispatcher and thermocouple scripts.

cd smoker-beacon
source venv/bin/activate
python dispatcher.py
python sensor.py

##Field Guide

• Hook up a USB keyboard, preferably with built-in mouse
• Use a USB hub to connect more than one device
• Hit CTRL-ALT-T to open a Terminal
• Hit ALT-TAB to switch between Terminal and Application
• Logs are located in /var/log/smoker-beacon
• Startup log located in /home/linaro/logs/cronlog
• Key programs are "sensor.py" and "dispatcher.py"
• Programs are located in /home/linaro/smoker-beacon
• The order: attach thermocouple first, then turn on CPU unit
• Calibrate the thermocouple when setting up,

Objective: Thermocouple readings through beacon to app

System Installation Requirements

• ZeroMQ
• Python
• iPython
• supervisor

Python Installation Requirements

• pillow
• transitions
• virtualenv development environment

Block Architecture

									   Ampilfier
									   Assembly
		+--------------+            +---------------+
		|              |            |               |
		|              |            |               |
		|              +------------>               |
		|              |            |               |
		|              |            |               |
		+--------------+            +-------+-------+
											|
		  Thermocouple                      |
											|                        BLE (Beacon)
									+-------v-------+            +---------------+
									|               |            |               |
									|               |            |               |
									|               +------------>               |
									|               |            |               |
									|               |            |               |
									+---------------+            +-------+-------+
										  PCDuino                        |
																		 |
																		 |
																		 |
																 +-------v-------+
																 |               |
																 |               |
																 |               |
																 |               |
																 +---------------+
																  Android App
																  Using Apache Cordova

Platform preparation

1. Clone this repo

    git clone git@github.com:dixon1e/smoker-beacon.git
   

2. Install all Ubuntu Linux packages (build-essential already included)

    sudo apt-get update && sudo apt-get upgrade -y
    sudo apt-get install -y python-pip python-virtualenv python-dev curl 
    sudo apt-get install -y python-bluez
   

3. Set the correct Time Zone

    sudo timedatectl set-timezone America/Denver
   

4. Install the supervisor package

    sudo pip install supervisor
   

5. Create a virtualenv in the repo directory (/home/linaro/smoker-beacon)

    cd ~/smoker-beacon
    virtualenv venv --no-site-packages
   

6. Activate virtual environment

    . ./venv/bin/activate
   

7. Install the Python libraries

    pip install -r requirements.txt
   

8. Add a new job to crontab for root user

    sudo su -  
    crontab -e 
    
    (make the following the last line)  
    
    @reboot su linaro -c "DISPLAY=:0.0 sh /home/linaro/smoker-beacon/startall.sh >/home/linaro/logs/cronlog 2>&1"
   

9. Change Desktop Background

    Open "Preferences >" | "Desktop Preferences" panel (from from lower left icon in Desktop Toolbar)
    In the "Appearance" Tab, change the "Wallpaper", opens new panel
            Browse to: "Filesystem" | "/smoker-beacon/images/logo.png"
            Click "Open"
    		Click Background Color and change to "White", e.g. 255, 255, 255 in the R,G,B fields
    Click "Close"
   

10. Check dispatcher.py and sensor.py to make sure Logging level is not more than "WARNING"

State Machine Description

Bluetooth