This project involves the development of an electronic system using an Atmega328P microcontroller to manage the operation of four LEDs and a 7-segment display. The system is programmed to execute specific sequences triggered by switches:
- Sequence a) "00" - All LEDs are fully illuminated, and the 7-segment display shows an "E".
- Sequence b) "01" - LEDs display a descending 4-bit counter, while the display shows a "1".
- Sequence c) "10" - LEDs display an ascending 4-bit counter, while the display shows a "2".
- Sequence d) "11" - All LEDs turn off, and the display shows a descending counter from 9 to 0.
- Atmega328P Microcontroller
- LEDs (4)
- 7-Segment Display
- Switches (2)
- Libraries: AVR Standard I/O and delay library for managing time delays.
- Constants and Macros: Definition of oscillator frequency and bit manipulation macros.
- Input Definitions: Definitions for switch inputs and conditions for each sequence.
- Output Definitions: Definitions for controlling the 7-segment display segments and LEDs.
- Functions:
init_port(): Initializes ports for inputs and outputs.show_num(uint8_t output): Displays a specific number or character on the 7-segment display.off(): Turns off all LEDs.on(): Turns on all LEDs.ascend(uint8_t asc): Controls the ascending counter sequence.descend(uint8_t des): Controls the descending counter sequence.
Users can interact with the system using two switches:
- Switch 1: Controls the first digit of the sequence.
- Switch 2: Controls the second digit of the sequence.
Ensure proper connections between the microcontroller, LEDs, 7-segment display, and switches based on the defined port configurations in the code.
- Compile the code using an AVR C compiler.
- Upload the compiled binary to the microcontroller using a suitable programmer.
Above is a screenshot of the simulation in action, showing the display of different numbers on the 7-segment display.