Can anyone explain how to connect this kind of wire to an arduino

Connecting multiple Grounds to one Arduino pin - General Electronics - The Contextual Electronics Forums

Orange plastic tube with a pistol grip and trigger, made by the

Instruction on how to connect your Arduino board to a computer and make it work

Different Ways to Power Arduino Board - How to Power Your Arduino Board with Different Power Options

Wireless Communication Between Two Arduinos - Circuit Basics

Can I add an external on/off switch? - Project Guidance - Arduino Forum

How/Where to solder wire? : r/DIYAudioCables

Could anyone tell me what these pins are called? : r/AskElectronics

Joining 2 different wires - Project Guidance - Arduino Forum

Assembly Line 2] I am using my mind trying to figure out how to

In-Depth: Interface One Channel Relay Module with Arduino

Hi, I want to make a serial cable, I buy the connectors and cable