Hello, I wanted to know if someone can help me, I am looking for the circuit diagram to assemble an LPG Gas gun, if anyone can help me with the components and the diagram, I will appreciate it.

 

An Arduino, and 3 power MOSFETS can do the job, but driving the ignition coil is a little tricky.

Then you need to write CODE to operate the thing.

Or you could do it entirely analog, in either case, you need to define exactly how the sequence of operations is supposed to go.

 

The two gas solenoids are in parallel, so they will both be fired together, so one Mosfet for those and one for the ignition coil, either an Arduino or Pic microcontroller.