BetaDelta

Project Overview

The purpose of the BetaDelta Website is mainly to provide real-time updates on the availability of residential study rooms to the South 40 WashU student body. Study room availability will be uploaded to the BetaDelta website via Wifi dongle, based on information from light, motion, and sound detectors, which will be connected through a raspberry pi system. The raspberry pi will be encased in a 3D printed shell and will placed in the optimal position in a given study room, based on its shape and size.

Information from each of the three sources will be displayed with its corresponding study room, where motion and sound will report its most recent activity and the light reporting a status of either "on" or "off." The website will have a couple of additional key highlights, the first of which will be easily accessible logs of past weekly study room availabilities. This will allow students to predict the timing and location of future study sessions. The second key highlight will be the ability to see which subjects are being studied in rooms around the South 40, where students are open to collaboration on a user-input basis. The third key highlight is that study rooms indicating signs of vacancy will be displayed on the BetaDelta website in order of probability of being available. The probability of availability will be based on how recently motion (the most weighted component) and sound have been detected in each study room as well as whether or not its light is on.

Team Members

• James Tiffany
• Rebecca Smith
• Nial Alwash
• Nathan Schmetter (TA)

Objectives

Create a functional website, BetaDelta, that can:

• Gather information from Raspberry Pi
• Accept user input
• Provide real-time information:

1. • Whether or not room occupied
   • Ranking of study room availability probability
   • What subject is being studied
   • Log of study room useage

Create a device that:

• Is contructed with a raspberry pi

1. • connected to a light, motion, and sound detector

• Has a 3D printed casing
• Can update the BetaDelta website through a Wifi dongle

Create a demo-room:

• That can accurately simulate changes in a study room

1. • Such as:
   1. • Whether or not the light is on
      • Change in motion
      • Presence of sound

• Constructed of cardboard

Challenges

• Learn Python
• Learn how to 3D print
• Design circuit involving R-Pi with sensors
• Learn how to connect R-Pi with website thru internet connection

Budget

Item	Quantity	Price	Vendor	Link
Raspberry Pi	1	$0	Lab
Micro SD Card (8GB)	1	9.95	Adafruit	https://www.adafruit.com/products/3259
Light (LDR) Sensor	1	$6.95 + 7.14 = 14.09	Adafruit	https://www.adafruit.com/product/1980
1uF Capacitor	2	$11.98	Uxcell	http://www.uxcell.com/1uf-50v-105c-radial-electrolytic-capacitor-5x11mm-p-162619.html
Motion sensor	1	$9.95 + $7.14 = $17.09	Adafruit	https://www.adafruit.com/product/189
Sound detector	1	$6.95 + $7.14 = $14.09	Adafruit	https://www.adafruit.com/products/1063
USB Battery Pack for Raspberry Pi	1	$39.95 + $7.14 = $47.09	Adafruit	https://www.adafruit.com/product/1566
Breadboard Wires	1	$7.29 + $2.29 = $9.58	Amazon	http://www.amazon.com/Solderless-Flexible-Breadboard-Jumper-Wires/dp/B005TZJ0AM
Total		$114.86

Gantt Chart