I'm making simple project that is based only on a 12V 300ma DC motor.
I know it's without Arduino but I got to this hobby through Arduino and the help of the wonderful guys of this forum, so once I'm again I need help.
So I just need to understand I got the wiring goes because It goes to the 220V in my house and that could kill me.
My plan is to connect a 12V 1A DC adapter, then connect it toNut Round Hole DC Socket, that to toggle switch, and then to the motor.
Please let me know if I got it correctly.
Another question, there are Nut Round Hole DC Socket and switches with 3 pins, not 2. Why is that? the tutorial for this project ( here ) uses 3 pins and I couldn't get why. THANKS