Wireless Attendance System Glendowie College

Problem/Issue Year 13’s need to sign out for study but the current system is slow. Manual entry on a piece of paper is slow and causes large queues On average it takes 12 minutes for year 13’s to all sign their attendance No security measures means easy to fake attendance. Eg People signing each other out

Solution To have an automated attendance system Using a barcode scanner and student ID cards can identify students Attendance can be logged onto a Google spread sheet Using a camera we can photo verify the student’s attendance Photos are uploaded to Google Drive

Subsystems The three inputs are the keypad, the barcode scanner, and the camera We decided to use Raspberry Pi because of its networking abilities allowing us to use Google’s APIs to edit Google spread sheets and uploading images to Google Drive.

Keypad The keypad was made by soldiering on key switches to a PCB. We made the PCB using Diptrace and engraved it onto a copper board using a engraver machine. The keypad is connected to the Raspberry Pi’s GPIO Pins The Keycaps are 3D printed

Barcode Scanner The barcode scanner acts as a keyboard typing out whatever it scans. Scanned barcodes return a student ID number so we look at the ID number in a database

Camera This was recommended by our stakeholders because they wanted extra security then the current system. The camera connects to Raspberry Pi and is controlled via code Photos are uploaded to google drive In the event of suspicious activity deans can check to see if the student was there when the logged their attendance

Software The program is coded in python some features of the program is Multi-Threading to allow processing and input to work at the same time Thread Queues allow for multiple student entries to be taken while they are completed in the background in sequence. This allows for several students to use the machine without processing wait times