1. PORTABLE PROGRAMMABLE MEDICATION REMINDER
Project Title
PORTABLE PROGRAMMABLE MEDICATION REMINDER
Under the Guidance of
Submitted by

2. ABSTARCT
The project takes care of reminder need of people who forget to take medicines in time. Keypad entry stores the relevant information with several timings based on a RTC (Real Time Clock) IC. At the programmed time the message for the medicine is displayed over a 16 digit LCD display together with a buzzer sound to alert the person for taking the appropriate medicine.

3. PROJECT BLOCK DIAGRAM

4. HARDWARE COMPONENTS POWER SUPPLY MICROCONTROLLER (AT89S52/AT89C51)
DS1307 RTC
BC547
KEYPAD
BUZZER
LCD
PUSH BUTTONS
1N4007
RESISTORS
CAPACITORS
LED

5. POWER SUPPLY Bridge rectifier 5v Regulator 230 V AC 50 Hz 5V DC
Filter(470µf)
12V step down
transformer

6. It is a smaller computer Has on-chip RAM, ROM, I/O ports...
MICROCONTROLLER
It is a smaller computer
Has on-chip RAM, ROM, I/O ports...
RAM
ROM
I/O Port
Timer
Serial COM Port
Microcontroller
CPU
A single chip

7. INTERNAL STRUCTURE OF A MICRO CONTROLLER-AT89S52/51
CPU
On-chip RAM
On-chip ROM for program code
4 I/O Ports
Timer 0
Serial Port
OSC
Interrupt Control
External interrupts
Timer 1
Timer/Counter
Bus Control
TxD RxD
P0 P1 P2 P3
Address/Data
Counter Inputs

8. Features of AT89S51/52 Compatible with MCS®-51 Products
8K Bytes of In-System Programmable (ISP) Flash Memory
Endurance: 10,000 Write/Erase Cycles
4.0V to 5.5V Operating Range
Fully Static Operation: 0 Hz to 33 MHz
256 x 8-bit Internal RAM
32 Programmable I/O Lines
Three 16-bit Timer/Counters
Eight Interrupt Sources
Full Duplex UART Serial Channel
Interrupt Recovery from Power-down Mode
Watchdog Timer
Dual Data Pointer

9. Pin Description

10. BUZZER
Piezo Buzzer
This buzzer is an piezo type audio signaling device, which has a piezo
element and a oscillating circuit inside which oscillates the piezo brass base
plate, which when given voltage difference produces sound of a predefined
frequency.
Features
These high reliability piezo buzzers are applicable to general electronics equipment.
Compact, pin terminal type Piezo buzzer with 4 KHz output.
Pin type terminal construction enables direct mounting onto printed circuit boards.

11. DS1307 RTC
RTC?
The RTC chip is a specialized chip that just keeps track of time
It runs on a battery and keeps time for you even when there is a power outage!
Using an RTC, you can keep track of long timelines, even if you reprogram your microcontroller or disconnect it from USB or a power plug.
The RTC we'll be using is the DS1307 . It's low cost, easy to solder, and can run for years on a very small coin cell.

12. 56 byte nonvolatile RAM for general data storage
FEATURES OF DS1307
Real time clock counts seconds, minutes, hours, date of month, month, day of week and year with leap year compensation valid up to 2100
56 byte nonvolatile RAM for general data storage
2-wrire interface (I2C)
Automatic power fail detect
Consumes less than 500 nA for battery back-up at 25'C

13. BC547 The BC547 transistor is an NPN Epitaxial Silicon Transistor.
The BC547 transistor is a general-purpose transistor in small plastic packages.
It is used in general-purpose switching and amplification BC847/BC547 series 45 V, 100 mA NPN general-purpose transistors.
Whenever base is high, then current starts flowing through base and emitter and after that only current will pass from collector to emitter

14. Keypad
A keypad is a set of buttons arranged in a block or "pad" which usually bear digits, symbols and usually a complete set of alphabetical letters. If it mostly contains numbers then it can also be called a numeric keypad.
In order to detect which key is pressed from the matrix, the row lines are to be made low one by one and read the columns. Assume that if Row1 is made low, then read the columns.
If any of the key in row1 is pressed then correspondingly the column 1will give low that is if second key is pressed in Row1, then column2 will give low.

15. LIQUID CRYSTAL DISPLAY (LCD)
Most common LCDs connected to the microcontrollers are 16x2 and 20x2 displays.
This means 16 characters per line by 2 lines and 20 characters per line by 2 lines, respectively.
The standard is referred to as HD44780U, which refers to the controller chip which receives data from an external source (and communicates directly with the LCD.

16. If an 8-bit data bus is used the LCD will require 11 data lines
LCD BACKGROUND
If an 8-bit data bus is used the LCD will require 11 data lines
(3 control lines plus the 8 lines for the data bus)
The three control lines are referred to as EN, RS, and RW
EN=Enable (used to tell the LCD that you are sending it data)
RS=Register Select (When RS is low (0), data is treated as a command)
(When RS is High(1), data being sent is text data )
R/W=Read/Write (When RW is low (0), the data written to the LCD)
(When RW is low (0), the data reading to the LCD)

17. Working of Project
The project uses one RTC (Real Time Clock) for Real Time
Reference interfaced to Microcontroller pins.
A Matrix Telephone keypad is used to enter multiple Timings for
multiple medicines as per the program displayed on the LCD.
Enter /set the time for RTC,after that set the medicine times.
When the programmed times of the clock reaches the set time and
o/p is logic 1 ,sound a Buzzer which is to draw the attention of the
person to view the name of the medicine on the LCD for taking the
same in right time.

18. Soft ware Requirements
Keil an ARM Company makes C compilers, macro assemblers, real-time kernels, debuggers, simulators, integrated environments, evaluation boards, and emulators for ARM7/ARM9/Cortex-M3, XC16x/C16x/ST10, 251, and 8051 MCU families.
Compilers are programs used to convert a High Level Language to object code. Desktop compilers produce an output object code for the underlying microprocessor, but not for other microprocessors.

19. i.e the programs written in one of the HLL like ‘C’ will compile the code to run on the system for a particular processor like x86 (underlying microprocessor in the computer).
For example compilers for Dos platform is different from the Compilers for Unix platform  So if one wants to define a compiler then compiler is a program that translates source code into object code.

20. THANKYOU