Obviously you can skip one relay.
If you skip relay REL2 you can also skip D2,T2,R3,R4.
If you skip relay REL1 you can skip D1,T1,R1,R2
Posts made by stormy
RE: 💬 MySensors InCan double light switch
DRL files contains information about drilling holes in PCB.
There can be 2 types of holes at PCB:
- Plated Through Hole is a hole that has been plated and connects the top layer of the board with the bottom layer. This is in file -PTH.DRL
- Non Plated Through Hole is just hole. This is in file -NPTH.DRL
In this project ALL holes are PTH type, so file -NPTH is just empty.
I never ordered PCB in China, but i'm pretty sure that you can simply upload the same ZIP file with all Gerber files that you downloaded from openhardware.io and they will accept it. There are no need for renaming files.