Additional Components

Last updated 10 months ago

Beyond the board itself, There are other components beyond the already described that are needed to have your Raspberry Pi up and running. The intention of this section is to describe those components and drive you to some safe and affordable options to purchase.

SD Card

A Raspberry Pi is an exceptional piece of hardware but it does not provide you with any internal storage where you can host the OS and files. In order to add storage to the Raspberry Pi we need to have an SD card with a minimum of 4GB of storage to safely store the OS and the different components needed to run SNIPS on it.

In order to power your Raspberry Pi 3 you need the proper power supply matching the Raspberry Pi requirements: at least 5V and 2.5A. Overall, make sure to not to use cheap power supplies that under or over power the Raspberry Pi as it will make it malfunction and not run optimally. You can find more information about power supplies specifications for a Raspberry Pi in the official documentation.

Apart from the official Raspberry Pi Power Supply another good option is the Adafruit Power Supply.

Almost as important as a good power supply is to have a good cable carrying the power. There is always some drop in power in cables and the longer and thinner the cable is the more notable these drops are.

As a recommendation you may want to purchase cables that are 22AWG thick and as long as 1 meter (3 feet) or shorter.

As commented previously in the speakers section, the output sound coming out from the 3.5mm Audio Jack of the Raspberry Pi adds up white noise. Apart of having this issue, Raspberry Pi does not provide any other interfaces to connect to other kind of speakers that may have other ways to input sound as RCA, optical or enabling active speakers that consume more resources. To solve that, HiFiBerry has produced a large variety of modules that let you use your favourite speakers no matter the way the audio is inputted and making sure the sound quality is optimal and the expected one.

In Snips, we have used the HiFiBerry Amp+ for our project spkr so we could set up bigger and more powerful speakers on the home assistant we created. In the article, you will find the steps to setup the HIFIBerry Amp+ bundle on your Raspberry Pi.

References:

Raspberry Pi Power

Raspberry PI Official Documentation