Winky Blink
![](http://tech.gpvanier.ca/wp-content/uploads/2024/01/Winky-Blink-Drawing-v2-1024x791.jpg)
Schematic
![](http://tech.gpvanier.ca/wp-content/uploads/2024/01/Winky-Blink-Schematic-1024x854.jpg)
PCB
![](http://tech.gpvanier.ca/wp-content/uploads/2024/01/Winky-Blink-PCB-1024x834.jpg)
Components
The 555 timer has a either a mark at the top (left side in the diagram) or a dot to mark pin 1. Double check the PCB diagram before soldering it in place.
The jumper (0R resistor) is often marked with a single black line instead of the three black lines used in the diagram.
![](http://tech.gpvanier.ca/wp-content/uploads/2024/01/Winky-Blink-Parts.jpg)