A breadboard-based 4-bit synchronous binary counter using logic gates with LED output indicators.
4-Bit Synchronous Binary Counter is a digital logic circuit project. The project demonstrates the design and implementation of a synchronous binary counter capable of counting from 0000 to 1111 (0–15) using clock pulses generated by a 555 Timer IC. The system was initially designed using only basic logic gates (NAND gates) to manually construct D flip-flops and implement the counter logic. Simulations were conducted using CircuitVerse and Tinkercad to verify the circuit behavior before hardware implementation on a breadboard, with LED indicators used to visually display the binary output. During development, timing and synchronization challenges were encountered in the pure logic-gate implementation, leading to the development of a second working version using a dual D flip-flop IC. The project highlights the practical challenges of translating theoretical digital logic concepts into functional hardware.
- Breadboard Circuit Prototyping
- Logic Gates (NAND Gates)
- D Flip-Flops
- 555 Timer IC – Used to generate clock pulses
- LED Indicators – Used to display the binary output
- CircuitVerse – Used for digital logic simulation
- Tinkercad – Used for circuit simulation and validation
- Boolean Algebra & Karnaugh Maps (K-Maps) – Used for logic simplification and circuit design
This project is completed as an academic project, a final project for the course Logic Circuits and Design, but may still receive improvements or refactoring in the future.
Project Team: Section O2A, Logic Circuits and Design Course, 2nd Year Computer Engineering, AY 2024–2025
Project Members:
- Unico, Aldwin Rion
- Pernito, Luther Gabriel
- Virtucio, Ralph Joshua
Project Date: April to May 2025
Project Sample Image:
