This should do the job. The mounting holes and module size in pcb may be incorrect as it is from a random MQ type module which may not be the same as yours. If you want mounting holes in pcb you need to drag a hole over the circle in silkscreen (by default the mounting holes are only on silkscreen, they are not drilled.) The gas sensor in breadboard isn’t quite right, but I;m not a good enough graphic artist to correct it.
MQ-5.fzpz (31.9 KB)
Peter