Intro PCB
Schematic
![](http://tech.gpvanier.ca/wp-content/uploads/2019/11/Intro-PCB-Schematic.jpg)
PCB
![](http://tech.gpvanier.ca/wp-content/uploads/2019/11/Intro-PCB-Guide.jpg)
Components
Resistors use coloured stripes to indicate their value (red, red, brown for 220R). They are also non-polar (no +/- pins).
The flat side of the LED, also the short pin, is the negative side. Always place the negative pin in the square hole on the PCB.
![](http://tech.gpvanier.ca/wp-content/uploads/2023/07/Intro-Parts-2.jpg)