Im building a small project where I will control a 12V water pump with my raspberry Pi.

I have made a small sketch of what I imagine should be a correct setup, but have been reading about the need for a flyback diode. N

ow I'm new to electricity so I'm not sure how to connect this. I just bought a pack of 1N4007-diodes, but how should I connect it so that it protects my raspberry Pi/relay from any arcs?

Also, I have the following relay

Should I remove the jumper between COM/GND to separate the two power sources through the optocoupler?

Appreciate any help on this, thanks!

I'm building a small project where I will control a 12V water pump with my raspberry Pi.

I have made a small sketch of what I imagine should be a correct setup, but have been reading about the need for a flyback diode.

I'm new to electricity, so I'm not sure how to connect this. I just bought a pack of 1N4007 diodes. How should I connect it so that it protects my Raspberry Pi/relay from any arcs?

I have the following relay:

Should I remove the jumper between COM/GND to separate the two power sources through the optocoupler?

Appreciate any help on this, thanks!