Why did I make it?

I created this module to help students and hobbyists learn the fundamentals of digital electronics like logic gates, flip-flops, and sequential circuits. While teaching, I noticed that a reliable and simple clock source was missing from most beginner setups. This module solves that problem by offering an accurate, low-jitter clock with a clear, LED-indicated 1Hz output—perfect for “blinky lights” and step-by-step logic demonstrations.

What makes it special?

• Crystal-based accuracy using a 32.768 kHz timekeeping crystal
• Wide frequency range from 0.5 Hz to 2048 Hz
• Visual feedback via a blinking LED on the 1Hz line
• Plug-and-play headers for quick experimentation with different clock signals
• Designed and tested with real students, ensuring ease of use and reliability
• Protected and filtered input with reverse polarity protection and decoupling capacitor

Whether you're just blinking an LED or exploring edge-triggered flip-flops, this module is the ideal clock companion for your breadboard.