{"id":505,"date":"2019-09-28T00:44:05","date_gmt":"2019-09-27T16:44:05","guid":{"rendered":"https:\/\/hifischool.com\/?p=505"},"modified":"2019-09-28T22:40:35","modified_gmt":"2019-09-28T14:40:35","slug":"turn-raspberry-pi-as-hifi-system","status":"publish","type":"post","link":"https:\/\/hifischool.com\/?p=505&lang=en","title":{"rendered":"Turn Raspberry Pi as Hifi System"},"content":{"rendered":"<p>Apart from the role as a serious vinyl record collector, my primary job is a data scientist.\u00a0 So, I have to work with Raspberry Pi to collect IoT data for real time analytics.\u00a0 Unfortunately, the life is quite boring when working in the <a href=\"https:\/\/www.smartdatainstitute.com\/index.php\/en\/data-science-lab\/\">data science lab<\/a> and <a href=\"https:\/\/www.cleardatascience.com\/en\/iot-lab\/\">IoT lab<\/a> for more than 10 hours a day.<\/p>\n<p>Then, I have built a small Hifi system with a piece Raspberry Pi and a piece of X400 Audio Expansion Board.\u00a0 The total cost is just around US$70 for a class-D (20w+20w) amplifier and a media center.<\/p>\n<p><strong><u>Items needed:<\/u><\/strong><\/p>\n<ul>\n<li>Raspberry Pi model 2 \/ 3 \/ 3+<\/li>\n<li>X400 Expansion Board\n<ul>\n<li>1 x X400 expansion board<\/li>\n<li>4 x nylon spacers (M3 x 20mm)<\/li>\n<li>8 x nylon screws (M3 x 6mm)<\/li>\n<li>2 x jumper links<\/li>\n<\/ul>\n<\/li>\n<li>SD-Card (&gt;8G), class 10 or above<\/li>\n<li>Power Supply, recommended as 12-24V, 3.5A or above\n<ul>\n<li>6V to 24Vdc converted to 5V, 3A via step-down DC\/DC converter to power the Raspberry Pi<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>I will show the steps of installation of hardware and basic configuration with Volumio (an OS for PI to play music).\u00a0 There are several steps (likely within 2 hours including installation of Volumio):<\/p>\n<ol>\n<li>Fitting the Expansion Board<\/li>\n<li>Preparing the Power Supply<\/li>\n<li>Preparing Volumio OS for Pi<\/li>\n<li>Configuring with Volumio<\/li>\n<li>Testing with Speakers<\/li>\n<\/ol>\n<p>Remark: this is not a technical website and not going to suggest the Amplifier built on top of Raspbian directly.<\/p>\n<p><strong><u>Fitting the Expansion Board<\/u><\/strong><\/p>\n<p>There are 4 nylon spacers to be fit for joining the Raspberry Pi and the expansion board together.<\/p>\n<p>1. Push a screw up through the mounting hole on the underside of the Raspberry Pi and screw the spacer down until it is tightly fit.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-573 size-medium\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-001-1-300x169.png\" alt=\"Raspberry Pi Audio Step 01\" width=\"300\" height=\"169\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-001-1-300x169.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-001-1-768x433.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-001-1-1024x578.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-001-1.png 1156w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>2. Plugs the expansion board straight into your Raspberry Pi B+&#8217;s GPIO header and screw down<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-574 size-medium\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-002-1-300x225.png\" alt=\"Raspberry Pi Audio Step 02\" width=\"300\" height=\"225\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-002-1-300x225.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-002-1-768x576.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-002-1-1024x768.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-002-1.png 1098w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Optional: DAC only VS AMP enabled<\/p>\n<p>If you are going to connect the expansion board with Speakers, it is important to take out the jumper on the top.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-575 size-medium\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-003-1-300x209.png\" alt=\"Raspberry Pi Audio Step 03\" width=\"300\" height=\"209\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-003-1-300x209.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-003-1-768x535.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-003-1-1024x714.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-003-1.png 1172w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>If you\u2019re going to connect speakers, it is extremely important to ensure the speakers are well connected in order to avoid damage of the expansion board.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-554 size-full\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-004-1.png\" alt=\"Raspberry Pi Audio Step 04\" width=\"528\" height=\"827\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-004-1.png 528w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-004-1-192x300.png 192w\" sizes=\"auto, (max-width: 528px) 100vw, 528px\" \/><\/p>\n<p><strong><u>Preparing the Power Supply<\/u><\/strong><\/p>\n<p>The X400 expansion board is also taking care the power of Raspberry Pi by stepping down the voltage.<\/p>\n<p>We have used a generic switching Power Supply.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-555 size-full\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-005-1.png\" alt=\"Raspberry Pi Audio Step 05\" width=\"899\" height=\"382\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-005-1.png 899w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-005-1-300x127.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-005-1-768x326.png 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>Next, you should power on the power supply and connect the plug near the speaker output.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-556\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-006-1-300x134.png\" alt=\"Raspberry Pi Audio Step 06\" width=\"300\" height=\"134\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-006-1-300x134.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-006-1.png 602w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong><u>Preparing Volumio OS for PI<\/u><\/strong><\/p>\n<p>Before getting the Volumio OS, you should check the following website<\/p>\n<p><a href=\"http:\/\/www.volumio.org\">www.volumio.org<\/a><\/p>\n<p>Next, we click on the \u201cDownload\u201d in the top menu.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-557\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-007-1-1024x377.png\" alt=\"Raspberry Pi Audio Step 07\" width=\"1024\" height=\"377\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-007-1-1024x377.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-007-1-300x110.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-007-1-768x283.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-007-1.png 1249w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>Then, choose Raspberry Pi and click \u201cDownload\u201d on the right. \u00a0Once the image file is ready, it is important to put the OS image into an SD card.<\/p>\n<p>There are 2 different tools suggested to download:<\/p>\n<ul>\n<li>SD Card Formatter \u2013 a tool for formatting the SD-card before use<\/li>\n<li>Win32DiskImager \u2013 a tool for burning SD-card image<\/li>\n<\/ul>\n<p><strong><em>SD Card Formatter <\/em><\/strong><\/p>\n<p>It is suggested to format the SD card before burning the Volumio image.\u00a0 Choose \u201cQuick format\u201d and press \u201cFormat\u201d to format the card.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-558\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-008-1.png\" alt=\"Raspberry Pi Audio Step 08\" width=\"543\" height=\"562\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-008-1.png 543w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-008-1-290x300.png 290w\" sizes=\"auto, (max-width: 543px) 100vw, 543px\" \/><\/p>\n<p>Once it is finished, it is time to prepare the Volumio image by Win32DiskImager.<\/p>\n<p><strong><em>Win32DiskImager <\/em><\/strong><\/p>\n<p>First, you should call the Win32DiskImager in the window menu.\u00a0 Then, the program window will be prompted.\u00a0 Click on \u201cSelect a disk image\u201d button as highlighted.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-559\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-009-1.png\" alt=\"Raspberry Pi Audio Step 09\" width=\"548\" height=\"388\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-009-1.png 548w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-009-1-300x212.png 300w\" sizes=\"auto, (max-width: 548px) 100vw, 548px\" \/><\/p>\n<p>Select the image file location<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-560 size-full\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-010-1.png\" alt=\"Raspberry Pi Audio Step 10\" width=\"843\" height=\"530\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-010-1.png 843w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-010-1-300x189.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-010-1-768x483.png 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>Next, click on \u201cWrite\u201d button and press \u201cYes\u201d to continue.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-561 size-full\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-011-1.png\" alt=\"Raspberry Pi Audio Step 11\" width=\"582\" height=\"415\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-011-1.png 582w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-011-1-300x214.png 300w\" sizes=\"auto, (max-width: 582px) 100vw, 582px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-562 size-full\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-012-1.png\" alt=\"Raspberry Pi Audio Step 12\" width=\"644\" height=\"261\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-012-1.png 644w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-012-1-300x122.png 300w\" sizes=\"auto, (max-width: 644px) 100vw, 644px\" \/><\/p>\n<p>Click \u201cOK\u201d once finished.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-563 size-full\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-013-1.png\" alt=\"Raspberry Pi Audio Step 13\" width=\"648\" height=\"458\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-013-1.png 648w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-013-1-300x212.png 300w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<p><strong><u>Configuring with Volumio<\/u><\/strong><\/p>\n<p>In order to access the Volumio, it is very simple to use a web browser in your computer or tablet.<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"623\"><a href=\"http:\/\/volumio.local\">http:\/\/volumio.local<\/a><\/p>\n<p>Or<\/p>\n<p>http:\/\/&lt;ip-address&gt; e.g. <a href=\"http:\/\/192.168.0.102\">http:\/\/192.168.0.102<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>There is a wizard available for the first connection.\u00a0 Once the \u201cFirst Run Wizard\u201d pop-up, there are 6 different parts to be set.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-564 size-large\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-014-1-1024x292.png\" alt=\"Raspberry Pi Audio Step 14\" width=\"1024\" height=\"292\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-014-1-1024x292.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-014-1-300x85.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-014-1-768x219.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-014-1.png 1496w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>Here are the basic steps to make it works.<\/p>\n<p>1. First of all, the language preferred should be set and click \u201cNext\u201d.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-565 size-large\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-015-1-1024x327.png\" alt=\"Raspberry Pi Audio Step 15\" width=\"1024\" height=\"327\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-015-1-1024x327.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-015-1-300x96.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-015-1-768x245.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-015-1.png 1497w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>2. Then, the unique hostname for the Raspberry Pi Volumio station should be set. By default, it is named as \u201cvolumio\u201d and calling it as \u201cvolumio.local\u201d.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-566 size-large\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-016-1-1024x328.png\" alt=\"Raspberry Pi Audio Step 16\" width=\"1024\" height=\"328\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-016-1-1024x328.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-016-1-300x96.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-016-1-768x246.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-016-1.png 1497w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>3. Next, click on \u201cYes\u201d for \u201cI have an I2S DAC\u201d for I2S interface of Raspberry Pi used for the communication between the Pi and the board. For the i2s DAC, the \u201cIQaudIO DAC Plus\u201d should be picked for X400 expansion board.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-567\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-017-1-1024x328.png\" alt=\"Raspberry Pi Audio Step 17\" width=\"1024\" height=\"328\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-017-1-1024x328.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-017-1-300x96.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-017-1-768x246.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-017-1.png 1500w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>4. After the output selected, it is time to configure the network. Beside the network to be used, click on the \u201cConnect\u201d button and input the password.\u00a0 Then, click on the \u201cConnect\u201d button next to the password to confirm your password input.\u00a0 Once, it is done and the volumio will try to connect to the proposed network immediately.\u00a0 If you are not using a Pi with wireless network like Pi zero, you may use a wifi doogle to do so.\u00a0 If your network cable is being connected to the Pi, the wizard should provide the network information for you.\u00a0 The configuration method should be similar.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-568\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-018-1-1024x588.png\" alt=\"Raspberry Pi Audio Step 18\" width=\"1024\" height=\"588\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-018-1-1024x588.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-018-1-300x172.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-018-1-768x441.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-018-1.png 1376w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>5. Under the \u201cMusic\u201d tab, you can add your USB drive or any Network Drive as one of the music (data) source for the Volumio.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-569\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-019-1-1024x324.png\" alt=\"Raspberry Pi Audio Step 19\" width=\"1024\" height=\"324\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-019-1-1024x324.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-019-1-300x95.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-019-1-768x243.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-019-1.png 1436w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>6. Finally, it is finished and prompt you a screen for donation. It\u2019s fair for the developer to ask for your support with their hard-work.\u00a0 You can make your choice for your support to the Volumio developer(s).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-570\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-020-1-1024x330.png\" alt=\"Raspberry Pi Audio Step 20\" width=\"1024\" height=\"330\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-020-1-1024x330.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-020-1-300x97.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-020-1-768x247.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-020-1.png 1441w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>7. Once it is finished, you can click on the menu button on the top right hand corner for picking up different tools available in the volumio.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-571\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-021-1.png\" alt=\"Raspberry Pi Audio Step 21\" width=\"235\" height=\"548\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-021-1.png 235w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-021-1-129x300.png 129w\" sizes=\"auto, (max-width: 235px) 100vw, 235px\" \/><\/p>\n<p>8. It is important to note that Raspberry Pi (Volumio) is a computer and not suggested to shut it down as just an amplifier. The proper way to shut down is to click on the \u201cShutdown\u201d in the menu.\u00a0 Then, you should see the following window and click on \u201cPower Off\u201d.\u00a0 You may wait 30 seconds or only the red light is on the Pi.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-572\" src=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-022-1-1024x156.png\" alt=\"Raspberry Pi Audio Step 22\" width=\"1024\" height=\"156\" srcset=\"https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-022-1-1024x156.png 1024w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-022-1-300x46.png 300w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-022-1-768x117.png 768w, https:\/\/hifischool.com\/wp-content\/uploads\/2019\/09\/Pi-audio-DIY-022-1.png 1437w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<p>That\u2019s it for the basic configuration &amp; set up for the Raspberry Pi and X400 expansion board.<\/p>\n<p>For more information, it is recommended to check the details available in the official website.<\/p>\n<p><a href=\"http:\/\/www.suptronics.com\/xseries\/x400.html\">http:\/\/www.suptronics.com\/xseries\/x400.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Apart from the role as a serious vinyl record collector, my primary job is a data scientist.\u00a0 So, I have to work with Raspberry Pi to collect IoT data for real time analytics.\u00a0 Unfortunately, the life is quite boring when working in the data science lab and IoT lab for more than 10 hours a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":574,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[126,141,143,145],"class_list":["post-505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diy-tutorial","tag-amplifier","tag-audio","tag-raspberry-pi-en","tag-x400-en"],"_links":{"self":[{"href":"https:\/\/hifischool.com\/index.php?rest_route=\/wp\/v2\/posts\/505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hifischool.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hifischool.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hifischool.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hifischool.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=505"}],"version-history":[{"count":3,"href":"https:\/\/hifischool.com\/index.php?rest_route=\/wp\/v2\/posts\/505\/revisions"}],"predecessor-version":[{"id":576,"href":"https:\/\/hifischool.com\/index.php?rest_route=\/wp\/v2\/posts\/505\/revisions\/576"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hifischool.com\/index.php?rest_route=\/wp\/v2\/media\/574"}],"wp:attachment":[{"href":"https:\/\/hifischool.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hifischool.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hifischool.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}