Smart Study Table

Study Table Project

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Basic aim of smart study table concept is to provide good comfortable environment to students while studying. Concept also consist a self assessment system by which student can measure certain parameters such as working time, average reading speed per page etc. System consists main controller bord which is connected to PIR, Ultrasonic, LDR sensors and drives LCD, MOSFET and LED. It is also connected to Real Time Clock and Bluetooth. PIR and Ultrasonic sensors are used to conform the presence of human near table or on chair. LDR is used to sense the light intensity in invironment. LCD which is 16x2 is used to display various prameters such as time, reminders and records. MOSFET is used to drive high bright LED. RTC module is used for clock and Bluetooth module is used to transfer data between reading desk and main controller wirelessly. On reading desk we have another Ultrasonic sensor which detects turning of pages and counts it. This data is sent to main controller using Bluetooth module.

Proposed System Specifications -

1. Adaptive Lighting.
2. Working / Sitting time measurement.
3. Average reading speed per page.
4. Average writing speed per page.
5. Bluetooth communication between reading desk and main controller.
6. Record Synchronisation with PC
7. Setting custom reminders from PC using serial communication.
8. Real Time Clock Display.

Current system consists following major hardware components -

• PIC18F46K22
• HC-05
• HC-SR04
• USB to Serial (TTL) Converter
• LDR
• PIR Sensor
• Gate Controlled Mosfet with high bright LED
• 5V power supply

Repository files description -

1. main.c - Main program file of pic18.
2. config.h - configuration register definations of controller.
3. lcd.c - 4bit mode LCD functions for JHD162 LCD.
4. lcd.h - LCD functiosn declaration.
5. ST_Schematic.pdf - Schematic of main controller.
6. RT_Schematic.pdf - Schematic of reading table controller.
7. ST_Gerber.zip - Gerber file of main controller for PCB manufacturing.
8. RT_Gerber.zip - Gerber file of reading table controller for PCB manufacturing.

Note - All PCBs are designed in KiCAD and are single layer.