Category: DIY


Traffic light with CD4017

For made a simply trafic light  you can use a CD4017 who is  Decade Counter with 10 Decoded Outputs. Also, it use CD4093 as tact generator. For made traffic light must decoder module made with...


Homemade Arduino (Arduiniq ver.3.0)

If you need to use Arduino shield on your projects must use an Arduino Uno or Arduino Mega boards or made your Arduino style development board. Schematic and board was designed using (Autodesk) Eagle PCB...


Monostable relay with 555

A practical application for monostable relay is temporary stair lights. After you short push on a button, light is on for few seconds (or minutes), after that lights is off. In roumanian old magazine...