Voltmeter
DIGITAL COUNTDOWN TIMER
HBeonLabs
Off. No. 46, 1st Floor, Kadamba Complex
Gamma-I, Greater Noida (India) - 201308
Contact us:
+91-120-4298000
+91-9212314779
info@hbeonlabs.com
training@hbeonlabs.com
www. hbeonlabs.com
INTRODUCTION
Digital countdown timer is very useful projects for final year students. This project replaces the conventional stopwatch to countdown timer. It has an Inbuilt Real Time Clock which tracks over the Real Time. It displays the day/month/year and time in hh/mm/ss format. The time and date can be changed at any Time using the keypad. The Real Time Clock as well as countdown timer is displayed on LCD display. We can set the reminders on events or alarm at a particular time and date. We can use the LED array for larger display.
COMPONENT USED
1. AT89S52 Microcontroller
2. IC DS1307
3. LCD
4. Keypad
SOFTWARE USED
1. KEIL µVISSION3
2. PRO 51
DESCRIPTION OF 8051
When we have to learn about a new computer we have to familiarize about the machine capability we are using, and we can do it by studying the internal hardware design (devices architecture), and also to know about the size, number and the size of the registers. A microcontroller is a single chip that contains the processor (the CPU), non-volatile memory for the program (ROM or flash), volatile memory for input and output (RAM), a clock and an I/O control unit. Also called a "computer on a chip," billions of microcontroller units (MCUs) are embedded each year in a myriad of products from toys to appliances to automobiles. For example, a single vehicle can use 70 or more microcontrollers. The following picture describes a general block diagram of microcontroller.
RTC
A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time. Although the term often refers to the devices in
HBeonLabs
Off. No. 46, 1st Floor, Kadamba Complex
Gamma-I, Greater Noida (India) - 201308
Contact us:
+91-120-4298000
+91-9212314779
info@hbeonlabs.com
training@hbeonlabs.com
www. hbeonlabs.com
INTRODUCTION
Digital countdown timer is very useful projects for final year students. This project replaces the conventional stopwatch to countdown timer. It has an Inbuilt Real Time Clock which tracks over the Real Time. It displays the day/month/year and time in hh/mm/ss format. The time and date can be changed at any Time using the keypad. The Real Time Clock as well as countdown timer is displayed on LCD display. We can set the reminders on events or alarm at a particular time and date. We can use the LED array for larger display.
COMPONENT USED
1. AT89S52 Microcontroller
2. IC DS1307
3. LCD
4. Keypad
SOFTWARE USED
1. KEIL µVISSION3
2. PRO 51
DESCRIPTION OF 8051
When we have to learn about a new computer we have to familiarize about the machine capability we are using, and we can do it by studying the internal hardware design (devices architecture), and also to know about the size, number and the size of the registers. A microcontroller is a single chip that contains the processor (the CPU), non-volatile memory for the program (ROM or flash), volatile memory for input and output (RAM), a clock and an I/O control unit. Also called a "computer on a chip," billions of microcontroller units (MCUs) are embedded each year in a myriad of products from toys to appliances to automobiles. For example, a single vehicle can use 70 or more microcontrollers. The following picture describes a general block diagram of microcontroller.
RTC
A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time. Although the term often refers to the devices in