Back when Saar Drimer was shipping soldering projects, he dreamt of a small device that he could leave in each box and update every time he added or removed an item. Was this binary counter circuit ...

Whether you are designing, repairing, or testing audio and hi-fi gear, a reliable frequency counter is a must-have tool. This classic frequency counter was a great DIY solution for audio work. Whether ...

Implementing standard UART communication required use of Silego’s GreenPAK analog and digital blocks, with the end result being a Geiger counter that offers real-time radiation measurement. The Geiger ...

I got some Geiger tubes a few days ago and built a very simple Geiger counter circuit that is powered entirely through the microphone jack (microphone connection provides a little power for things ...

This is an oldie, but oh, man is this ever good. It’s a Nixie clock made without a microcontroller. In fact, there aren’t any logic chips in this circuit, either. As far as we can tell, the logic in ...

The main principle of this circuit is to increment the values on seven segment displays by pressing the button. Generally, one can see the digital displays, which display the score when buttons are ...

The challenge in measuring low frequencies is that the counter gate time is often too short for the signal relatively long period. This non-critical circuit automatically multiplies an input single ...

Overview of digital logic design. Implementation technologies, timing in combinational and sequential circuits, EDA tools, basic arithmetic units, introduction to simulation and synthesis using ...