ARDUINO BASED TIME AND TEMPERATURE DISPLAY
Download as PPTX, PDF4 likes5,170 views
This project displays the current time and temperature using an Arduino board, LM35 temperature sensor, and DS1307 RTC module. The LM35 and DS1307 are connected to analog pins on the Arduino, which uses its onboard ADC to read the analog voltage values and display the converted time and temperature readings on an LCD screen. The key components required are the Arduino, sensors, LCD, and supporting electronics. The document provides details on how each component functions and how they interconnect and cooperate to continuously display the time and surrounding temperature.
Ad
More Related Content
What's hot (20)
Similar to ARDUINO BASED TIME AND TEMPERATURE DISPLAY (20)
Ad
Recently uploaded (20)
Ad
ARDUINO BASED TIME AND TEMPERATURE DISPLAY
- 2. INTRODUCTION ļThis project time and temperature display, displays the time and temperature of surrounding. The LM-35 Analog Temperature Sensor and RTC DS- 1307 is interfaced to analog pin of Arduino board, where it has in built ADC which converts these analog reading and displays it on LCD, which indicate time and temperature of surrounding.
- 3. COMPONENT REQUIRE ļ Arduino developed board ļ Temperature sensor ļ Time sensor ļ LCD ļ Breadboard ļ Misc(wires,pot etc)
- 4. Arduino Board ļ Arduino is a single-board microcontroller. ļ There is a microcontroller unit embedded on it. ļ The Arduino microcontroller is an easy to use yet powerful single board computer. ļ The code is directly loaded from the computer.
- 5. Arduino Board ļ The Arduino is open-source, which means hardware is reasonably priced and development software is free. ļ It has gained considerable traction in the hobby and professional market.
- 6. LM 35 Temperature Sensor ļ LM 35 are used to sense the heat around it. ļ LM 35 digital sensor has got 3 pinās i.e., VCC, GND and output pinās when LM 35 is heated the voltage at output pin increases. ļ It is connected to the analog to digital convertor IC (ADC).
- 7. LM 35 Temperature Sensor ļ The LM 35 series are precision integrated-circuit temperature sensor, whose output voltage is linearly proportional to Celsius temperature. ļ The LM 35 does not require any external calibration or trimming to provide typical accuracies of Ā±1ā4ĖC at room temperature and Ā±3ā4ĖC over a full ā55 to +150ĖC temperature range.
- 8. Liquid Crystal Display(LCD) ļ Most common LCDs connected to the microcontrollers are 16x2 and 20x2 displays. ļThis means 16 characters per line by 2 lines and 20 characters per line by 2 lines, respectively. ļIt has a controller chip which receives data from an external source and directly displays it on screen.
- 9. Liquid Crystal Display(LCD) ļIf 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). ļThe three control lines are referred to as EN, RS, and RW ļ± EN =Enable (used to tell the LCD that you are sending it data). ļ± RS =Register Select (When RS is low (0), data is treated as a command). ļ (When RS is High(1), data being sent is text data ).
- 10. Liquid Crystal Display(LCD) ļ± R/W = Read/Write (When RW is low (0), the data written to the LCD). (When RW is low (1), the data reading to the LCD).
- 11. Real Time Clock ļ RTC is an 8 pin device using an I2C interface. ļThe DS1307 is a low-power clock/calendar with 56 bytes of battery backup SRAM. ļThe clock/calendar provides seconds, minutes, hours, day, date, month and year qualified data. ļ The main advantage of RTC is that they have an ļ arrangement of battery backup which ļ keeps it running in case of power failure
- 12. Working Principle ļ The heart of the circuit is an Arduino board which controls all its functions. ļ An IC LM35 is used as temperature sensor and RTC ds-1307 is used as a time sensor. ļ The LM-35 analog temperature and RTC 1307 device is interfaced to the analog pin of the Arduino board. ļ Itās built-in ADC, which converts these analog reading and displays that on the LCD, to indicate temperature and time of the surroundings.
- 13. Working Principle ļ Time and temperature can be displayed in any sequence as desired by doing changes in program uploaded on Arduino. ļ RTC also help in displaying day of week.
- 14. Circuit ļ Inter facing of RTC with Arduino and LCD Interfacing of LM 35 with Arduino and LCD
- 15. Reference ļ This project is done with the reference of my ECE teacher Miss Manie Kansal. ļ http://www.alldatasheet.com/ ļhttp://www.engineersgarage.com/ ļhttps://m.youtube.com/watch?v=NDwSrgfsiYQ