Update for 12-11-21 23:00

2021-11-12 23:00:01 -05:00 · 2021-11-12 23:00:01 -05:00 · 823c502df1
commit 823c502df1
parent 8296d78022
1 changed files with 2 additions and 0 deletions
--- a/tech/PCB.wiki
+++ b/tech/PCB.wiki
@ -9,6 +9,8 @@ help you turn breadboard circuts into PCBs.
 == Structure ==

 * Components are connected with copper trace (wire)
+* PCB is several layers 
+  - Inner layers are usually GND or VCC

 == Software ==