Geeky Gadgets

CD4017 Decade binary clock kit hits Kickstarter

If you are looking for an interesting project to keep you busy you may be interested in a new binary clock kit launched via Kickstarter this week in the form of the CD4017 Decade. Created by power ...
Hackaday

Using A Decade Counter To Make LEDs Flash

[Andrea De Napoli] created a LED display consisting of a half-dozen LEDs connected to the inverted signals of a CD4017 decade counter, giving the effect that a dark LED is running back and forth. The ...
Hackaday

555 Timer On Its Own In Electronic Dice

One of the most common clichés around here is that a piece of equipment chosen for a project is always too advanced. If a Raspberry Pi was used, someone will say they should have used an Arduino. If ...
EDN

Cascade two decade counters to obtain 19-step sequential counter

This Design Idea offers a practical approach to cascading two or more Johnson counters together with a bare minimum of parts. The CD4017 Johnson decade counter finds use in simple circuits ranging ...