How do I Power My Raspberry Pi

Hello! Welcome to this article. If you recently bought a Raspberry Pi and trying to figure out how to power it on? Which all different connectors on the board can be used for powering or can we use GPIO for powering the RPi? Can we supply extra current or voltage than rated? then this is the right blog for you. Here we will answer all these questions and a lot more by looking at different ways to power Raspberry pi. So stay tuned and let's get started!

Raspberry Pi

Different modes to Power Raspberry Pi

1. Using USB connector on RPI Board

This is the recommended and most commonly used way to power the Raspberry Pi.

2. Micro USB 

You can use a Micro USB type cable to give power supply to the board. This connector is used on older versions of RPi.

3. TYPE-C

TYPE-C connector is used on the latest versions of RPI i.e models 4 and 400. The specialty of type C compared to micro USB is that it is a reversible connector ( can be connected in any orientation) and can be used for faster data transfer and powering the RPi.

For best performance and stable supply use the official Raspberry pi power adapter from our robocraze store  for powering Rpi 4 or 400. It gives a stable 5V and 3 A to the board.

TYPE-C cable for raspberry pi

Make sure you provide the recommended power supply as provided in the below table for different Rpi models.

Family

Model

Voltage

Recommended Current 

Connector

Raspberry Pi

A,  A+

5 V

700 mA

Micro USB

Raspberry Pi B+, Rasberry Pi 2 B

B

5 V 

1.8 A

Raspberry Pi Zero

Zero, W/WH,2W

5 V

1.2 A

Raspberry Pi 3

A+,B, B+

5 V

2.5 A

Raspberry Pi 4

B,400

5 V

3.0 A

USB C

Raspberry Pi Pico

1-8 - 5.5 V

-

Micro USB


2. Using onboard GPIO Pins

Yes, you can use onboard 5V and GND pins for powering the Rpi. PINs 2 and 4 correspond to 5V. PIN 6 is the ground pin. Connect the PSU power wires accordingly to power the RPi. Note that you would need a stable 5V and 3 A power supply (in the case of Rpi 4) since there is no protection circuit added in case of power fluctuations

GPIO Pins Raspberry Pi

3. Power over Ethernet (PoE)

There is one more way through which you can power your RPi i.e by providing a power supply through the ethernet port. But for doing this you will require an extra shield called Raspberry Pi PoE HAT.

Power over Ethernet

PoE is a networking method through which we can send power over an existing data connection on a network cable.

How to use the RPi PoE hat?

To use this just connect the shield on RPI and you are ready to go!

After connecting just plug in the ethernet and power the Rpi!! That's it!
Note: There should be a power supply connected to the network adapter from which we are taking the ethernet connection. 

What if your RPi still doesn’t work?

Check if your power supply wire is working properly. Also, check with a multimeter if the PSU is providing the required amount of Power to the Rpi. If you are using a mobile phone or cable charger it might not be providing the required amount of power. The best way is to use the official Raspberry PI adapter.

Check if you have plugged in your flashed Operating System SD card. If you haven't installed OS then go to the Rpi official website and follow the steps for installing the Operating system on an SD card. This should solve the problem.

If the SD card is corrupted( unable to format)  then you will need to get a new one. If there is no video output check the HDMI cable if it's working.

Conclusion

In this article, we have seen how to power the Raspberry Pi board using different methods. If you have any doubts feel free to comment.

Frequently Asked Questions

1. Can you provide a power supply to Raspberry pi using standard USB ports?

No, You cannot provide a power supply unit (PSU) through the standard USB ports which are available for connecting the keyboard and mouse and getting the expected performance.

There is an indirect way of powering Rpi through USB ports. We can do this by powering the Rpi with a Micro USB or USB C port and then supplying power through USB ports. Then remove the Micro USB or USB C power supply and your Rpi will still work. Since USB ports have a current limit of 500mA your Rpi may not work to its fullest performance or not work at all. 

Except for Raspberry Pi PICO and Raspberry Pi Zero, the rest have standard USB ports.

 

2. Can you provide a power supply to Raspberry pi using an audio jack?

You also cannot directly power supply using the audio and video composite jack available on the board.
 

3. Can we use a PSU that can draw a higher current than 3 A for powering RPI 4?

You can use a 5V PSU which can provide a high current than 3 A since your RPi will only take the required amount of current since the voltage is fixed (5V) and resistance too.

Example: RPi 4 can draw a maximum current of 3 A. So even if we use a 5V PSU that can supply maximum current up to 4A, RPI 4 will only use the required amount of current i.e. up to 3A. 

 

4. Can you use more than a 5V PSU unit for powering RPi 4?

You cannot use a PSU with more than 5V, it is likely to damage the board. Since most of the boards are rated around a maximum of 5V.
 

5. What is the difference between powering RPi through GPIO and powering it through micro USB or USB C?

Micro USB or USB C is provided with an extra protection circuitry ( fuse and diode protect from power surges) whereas when your power supply is through GPIO, this circuit is bypassed.

Components and Supplies

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Frequently Asked Questions

1. Can you provide a power supply to Raspberry pi using standard USB ports?

No, You cannot provide a power supply unit (PSU) through the standard USB ports which are available for connecting the keyboard and mouse and getting the expected performance.

There is an indirect way of powering Rpi through USB ports. We can do this by powering the Rpi with a Micro USB or USB C port and then supplying power through USB ports. Then remove the Micro USB or USB C power supply and your Rpi will still work. Since USB ports have a current limit of 500mA your Rpi may not work to its fullest performance or not work at all. 

Except for Raspberry Pi PICO and Raspberry Pi Zero, the rest have standard USB ports.

 

2. Can you provide a power supply to Raspberry pi using an audio jack?

You also cannot directly power supply using the audio and video composite jack available on the board.
 

3. Can we use a PSU that can draw a higher current than 3 A for powering RPI 4?

You can use a 5V PSU which can provide a high current than 3 A since your RPi will only take the required amount of current since the voltage is fixed (5V) and resistance too.

Example: RPi 4 can draw a maximum current of 3 A. So even if we use a 5V PSU that can supply maximum current up to 4A, RPI 4 will only use the required amount of current i.e. up to 3A. 

 

4. Can you use more than a 5V PSU unit for powering RPi 4?

You cannot use a PSU with more than 5V, it is likely to damage the board. Since most of the boards are rated around a maximum of 5V.
 

5. What is the difference between powering RPi through GPIO and powering it through micro USB or USB C?

Micro USB or USB C is provided with an extra protection circuitry ( fuse and diode protect from power surges) whereas when your power supply is through GPIO, this circuit is bypassed.

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