Clock/temperature LED display

This project is based on the timer/counter 0 example. It shows time, date and temparature on 7 segment displays. Instead of the LCD display the time is shown on a four digit 7 segment display with common cathode. The date and temparature is shown on a 7 segment LED display with comon anode.
The ATMEGA328 is used to control the display, the ATMEGA8 can also be used. The circuit use 6 I/O pins from port B and 2 I/O pins from port C to control the digitts and 8 I/O pins from port D to control the segments of each digit. The temperature is red from a LM335 temperature sensor.
temperature LED display
The core of the circuit is the ATMEGA328 microcontroller. The four segment LED display is connected to PORTC and PORTD. With multiplexing the data will be show on the display. Via the I/O port of PORTB and PORTC the digits are switched on and off while PORTD select the segments.
This project is based on the timer/counter 0 example. It shows time, date and temparature on 7 segment displays. Instead of the LCD display the time is shown on a four digit 7 segment display with common cathode. The date and temparature is shown on a 7 segment LED display with comon anode.
The ATMEGA328 is used to control the display, the ATMEGA8 can also be used. The circuit use 6 I/O pins from port B and 2 I/O pins from port C to control the digitts and 8 I/O pins from port D to control the segments of each digit. The temperature is red from a LM335 temperature sensor.
switch interface
The core of the circuit is the ATMEGA328 microcontroller. The four segment LED display is connected to PORTC and PORTD. With multiplexing the data will be show on the display. Via the I/O port of PORTB and PORTC the digits are switched on and off while PORTD select the segments.
For more detail:  Clock/temperature LED display


About The Author

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

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