RFID Storage Cabinet

Members

• Lance Preston
• Gus Reiter

Psuedo Code

• ScanRFID:

  if equipment:

  state = PutEquipmentBack

  elif member:

  state = ShowMemberOptions

• ShowMemberOptions:

  webservice:GetAvailableTools

  show screen

  if available tool selected:

  state = Checking Equipment Out

  if Exit selected:

  state = ScanRFID

• Checking Equipment Out:

  open cabinet locker for tool

  webservice:CheckoutTool(User rfid, tool rfid)

  if error selected:

  webservice:ReportError if appropriate

  wait for cabinet locker for tool to close

  state = ScanRFID

• PutEquipmentBack:

  open cabinet locker for tool

  prompt for member rfid

  prompt for condition of tool

  webservice:CheckinTool(tool rfid)

  webservice:ReportError if appropriate

  wait for cabinet locker for tool to close

  state = ScanRFID

Screens by State

ScanRFID:

Swipe 
badge
or equipment 
to proceed

ShowMemberOptions:

Hello {membername}                 [exit]
Feel free to scan in equipment to return

Checked out:
  {checked out equipment for this member, each clickable}
Available to checkout:
  {checked out equipment, each clickable}

CheckOutEquipment:

Hello {membername}                 [exit]
Please remove the equipment from the now open locker and examine it.
If the equipment is in good condition, please close the door, and enjoy.

Otherwise notate the issue below:
* [equipment is missing]
* [equipment is broken]

PutEquipmentBack

Feel free to scan your RFID to get credit [exit]
Thank you {member name}                   [exit]

If there is an issue with the equipment,
  please press [This equipment needs repair]

Please place the equipment into the now open locker and close it.

Web Services

• by Kent
• implemented in Flask

GetAvailableTools

Parameters:

• User RFID

returns:

• tools checked out
• tools available to check out

CheckOutTool

Parameters:

• User RFID
• Tool RFID (was UUID)

IsDoorClosed

Parameters:

• Tool RFID (was UUID)

Returns:

• True / False

CheckInTool

• User RFID
• Tool RFID (was UUID)

Report Error

• User RFID
• Tool RFID (was UUID)
• ErrorMessage: description

Hardware

Commodity Hardware

• Touch Screen (7" open frame capacitive multi-touch panel (ratio 16:10)):

  http://www.chalk-elec.com/?page_id=1280#!/7-open-frame-capacitive-multi-touch-panel-ratio-16-10/p/39527272/category=3094846

  http://www.karlssonrobotics.com/cart/Beaglebone-Black-Cape-LCD-7.0/

  http://www.mouser.com/search/refine.aspx?Ntk=P_MarCom&Ntt=163356980

  BeagleBone Black

  http://www.microcenter.com/product/434844/Beaglebone_Black_-_Revision_C

Software upgrades

vim

• Syntax Highlighting:

  https://github.com/farfanoide/vim-kivy

apt-get

sudo apt-get install python-software-properties

pip

wget https://raw.github.com/pypa/pip/master/contrib/get-pip.py
python get-pip.py

sudo pip install flask-sqlalchemy
sudo pip install sqlalchemy
sudo pip install flask-restful
sudo pip install Flask

Source Code

https://github.com/Kentamanos/rfidLocker

Build mu/th/er cabinet Ubuntu distro from scratch

Requirements:

• Beaglebone Black Rev A, B or C. A bit tight on A and B. sudo apt-get clean
• Linux computer that can write to microsd

On Linux computer

1. program microsd card which will install Ubuntu 14.04 into Beaglebone Black

• http://elinux.org/BeagleBoardUbuntu#eMMC:_BeagleBone_Black

wget https://rcn-ee.com/rootfs/2015-06-11/flasher/BBB-eMMC-flasher-ubuntu-14.04.2-console-armhf-2015-06-11-2gb.img.xz
unxz BBB-eMMC-flasher-ubuntu-14.04.2-console-armhf-2015-06-11-2gb.img.xz
dd if=BBB-eMMC-flasher-ubuntu-14.04.2-console-armhf-2015-06-11-2gb.img of=/dev/sd{drive letter for microsd card here}

Install Ubuntu onto BBB

1. insert microsd card generated by the Linux Box above.
2. power up, and wait

echo "deb http://ppa.launchpad.net/kivy-team/kivy/ubuntu trusty main" >> /etc/apt/sources.list
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A863D2D6
sudo apt-get update
sudo apt-get upgrade
sudo dpkg-reconfigure tzdata
sudo apt-get install kivy mysql-server python-flask-sqlalchemy lxde lxde-core lxde-icon-theme build-essential python-dev python-setuptools python-pip python-smbus
sudo pip3 install Adafruit_BBIO
sudo pip3 install -pre sqlalchemy

• http://elinux.org/Beagleboard:Installing_LXDE#LXDE_On_A_Micro_SD_with_Ubuntu_Raring

if pip does not get installed:

https://bugs.launchpad.net/ubuntu/+source/python-pip/+bug/1468155

sudo apt-get install python-pip=1.5.4-1 python-dev

Update BBB to auto log in as a user

1. /etc/lxdm/lxdm.conf

## uncomment and set autologin username to enable autologin
autologin=ubuntu

Update BBB to auto start program

update ~/.config/lxsession/LXDE/autostart

@xscreensaver -no-splash
# @lxpanel --profile LXDE
@pcmanfm --desktop --profile LXDE
@/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1
@/usr/bin/python cabinetstorage.py

Ideas for starting in kiosk mode: http://surf.suckless.org/files/kiosk_mode

Rotate screen

http://hipstercircuits.com/problems-with-beaglebone-black-and-their-solution/

mysql

sudo apt-get install python-mysqldb

mysql --u root -p

create database muther;
create user 'muther'@'localhost' identified by '{password}';
grant create, delete, insert, select, update on muther.* to muther@localhost;
flush privileges;

How can I get rid of image burn-in on an LCD display?

http://www.mouser.com/search/refine.aspx?Ntk=P_MarCom&Ntt=163356980

LDAP

http://n0where.net/understanding-the-ldap/