FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -5V pins: The 5V pins are used to output the 5V power supply provided by the Type-C port. The pins are numbered 2 and 4 on the Raspberry Pi 4 device. 3.3V pins: The 3.3V pins provide a 3.3V power supply to the external components, numbered 1 and 17.

Detailed explanation-2: -The 5v power pins are connected directly to the Raspberry Pi’s power input and we can use these pins to run low power applications. Then there are the ground pins. There are eight ground pins and all of these are connected to each other; you can use any of these ground pins for your projects.

Detailed explanation-3: -Another way to power up the Raspberry Pi 4 is by using its pin 2, 4 and 6 by either using a battery or a power adaptor. This method needs to be done with great care if you plug in the supply into the wrong pins then it can damage the Pi.

Detailed explanation-4: -The Raspberry Pi is a 3.3V device. This means it can not tolerate 5V on any of its pins. Be very careful not to do this, especially since there are two pins that output 5V. Those two 5V pins are often used to power externally attached hardware, which is fine.

Detailed explanation-5: -The 5v power pins are connected directly to the Pi’s power input and will capably provide the full current of your mains adaptor, less that used by the Pi itself. With a decent power supply, such as the official 3A adapter on the Pi 4, you can expect to pull about 1A to 2A.