{"id":237,"date":"2017-05-24T08:30:04","date_gmt":"2017-05-24T08:30:04","guid":{"rendered":"http:\/\/chewett.co.uk\/?p=237"},"modified":"2018-05-19T22:13:41","modified_gmt":"2018-05-19T21:13:41","slug":"powering-raspberry-pi-cluster","status":"publish","type":"post","link":"https:\/\/chewett.co.uk\/blog\/237\/powering-raspberry-pi-cluster\/","title":{"rendered":"Powering a Raspberry Pi Cluster"},"content":{"rendered":"

The Raspberry Pi doesn’t come with its own power supply so you need to decide how to power it.<\/p>\n

The recommendation<\/a> from the Raspberry Pi\u00a0website is that they have “found that purchasing a 2.5A power supply from a reputable retailer will provide you with ample power to run your Raspberry Pi”. After doing some research online it appears that most newer Raspberry Pi’s will draw about an amp at full load.<\/p>\n

Actually its relatively easy to find a power supply for Raspberry Pi. This is because you can power\u00a0the Pi by a\u00a0standard 5\u00a0volt Micro USB port. These requirements are similar to most mobile phones and tablets. This means that a standard mobile charger with a USB connector should power the Pi.<\/p>\n

If you don’t want to use a phone charger you can buy a specific Raspberry Pi power supply. There a number of these online designed for the Raspberry Pi.<\/p>\n

Why I wont be using standard chargers<\/h2>\n

Using a single charger works well for a single Pi\u00a0but running 5+ will become messy with wires.\u00a0I wanted something to power my Pi which would only require one power socket and power multiple Pi’s at the same time.<\/p>\n

One of the main requirements is that whatever I am going to use should be able to provide enough current to run multiple Raspberry Pi’s.<\/p>\n

How to power Multiple Pi’s then?<\/h2>\n

I spent some time researching the power requirements of a Raspberry Pi. It is generally agreed on that at full load they can require about an amp of power. I finally decided on purchasing the Anker PowerPort 10 to run the cluster.<\/p>\n

\"\"<\/a>The Anker PowerPort 10 is designed as a high speed charger and is able to deliver 12 amps of power across its 10 USB ports. This has a maximum of 2.5 amps on any one USB port which is\u00a0more than\u00a0plenty for any one Pi.<\/p>\n

This charger is one of the more powerful ones available and should be enough to power my cluster at full load. It was important to purchase a reputable brand as cheaper chargers can have noisy power lines. This can affect the operation of the device attached and at worst case damage them.<\/p>\n

\"\"<\/a><\/p>\n

One of the features I like about the Anker power supply is the switch at the back. This\u00a0means that to turn off the USB ports I wont need to access the power socket switch. This is important as I plan to tuck away the cabling to make the cluster have a clean interface.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

The Raspberry Pi doesn’t come with its own power supply so you need to decide how to power it. The recommendation from the Raspberry Pi\u00a0website is that they have “found that purchasing a 2.5A power supply from a reputable retailer will provide you with ample power to run your Raspberry Pi”. After doing some research […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[122],"tags":[39,37,101],"class_list":["post-237","post","type-post","status-publish","format-standard","hentry","category-raspberry-pi-cluster","tag-linux","tag-raspberry-pi","tag-raspberry-pi-cluster"],"wppr_data":{"cwp_meta_box_check":"No"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2toWX-3P","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":367,"url":"https:\/\/chewett.co.uk\/blog\/367\/overview-raspberry-pi-cluster\/","url_meta":{"origin":237,"position":0},"title":"Overview of the Raspberry Pi Cluster","author":"Chewett","date":"June 17, 2017","format":"gallery","excerpt":"Now I have the power supply and built the stacking system\u00a0I can show off the clusters initial state. Every Raspberry Pi in\u00a0the cluster Here are the 7 initial Pi's that are to become part of the cluster. Each have been given a codename to designate\u00a0its position in the cluster.\u00a0The Raspberry\u2026","rel":"","context":"In "Raspberry Pi Cluster"","block_context":{"text":"Raspberry Pi Cluster","link":"https:\/\/chewett.co.uk\/blog\/category\/raspberry-pi-cluster\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/05\/cluster_uncovered.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/05\/cluster_uncovered.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/05\/cluster_uncovered.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/05\/cluster_uncovered.jpg?resize=700%2C400 2x"},"classes":[]},{"id":2674,"url":"https:\/\/chewett.co.uk\/blog\/2674\/moving-the-raspberry-pi-cluster-to-a-raspberry-pi-4b-4gb\/","url_meta":{"origin":237,"position":1},"title":"Moving the Raspberry Pi Cluster to a Raspberry Pi 4B 4GB","author":"Chewett","date":"October 10, 2020","format":false,"excerpt":"Today I am talking about moving the Raspberry Pi Cluster primary node to a Raspberry Pi 4B 4GB model. I also discuss the improvements that the Raspberry Pi 4B has made over previous generations. Why move to a Raspberry Pi 4B Generally running the cluster does not require a large\u2026","rel":"","context":"In "Raspberry Pi Cluster"","block_context":{"text":"Raspberry Pi Cluster","link":"https:\/\/chewett.co.uk\/blog\/category\/raspberry-pi-cluster\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2020\/10\/raspberrypi_4_posticon_OUTPUT.png?fit=1200%2C628&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2020\/10\/raspberrypi_4_posticon_OUTPUT.png?fit=1200%2C628&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2020\/10\/raspberrypi_4_posticon_OUTPUT.png?fit=1200%2C628&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2020\/10\/raspberrypi_4_posticon_OUTPUT.png?fit=1200%2C628&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2020\/10\/raspberrypi_4_posticon_OUTPUT.png?fit=1200%2C628&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":423,"url":"https:\/\/chewett.co.uk\/blog\/423\/comparison-raspberry-pi-b-models\/","url_meta":{"origin":237,"position":2},"title":"A comparison of Raspberry Pi B Models","author":"Chewett","date":"July 8, 2017","format":false,"excerpt":"Since the first Raspberry Pi was released in 2012 there have been a number of changes to their design. Since I plan to include a number of different models in my cluster I will review and test each model to find its weakness and strengths. 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Here I will be documenting the process of assembling,\u00a0building, and running a small cluster.\u00a0This blog will include both code snippets, \u00a0hardware diagrams and the results of various projects using the cluster. Aims of the project The\u00a0Raspberry Pi cluster\u2026","rel":"","context":"In "Raspberry Pi Cluster"","block_context":{"text":"Raspberry Pi Cluster","link":"https:\/\/chewett.co.uk\/blog\/category\/raspberry-pi-cluster\/"},"img":{"alt_text":"dsc_0525","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2016\/10\/DSC_0525.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":313,"url":"https:\/\/chewett.co.uk\/blog\/313\/adding-heatsinks-rasperry-pi-cluster\/","url_meta":{"origin":237,"position":4},"title":"Adding Heatsinks to Rasperry Pi Cluster","author":"Chewett","date":"December 2, 2017","format":false,"excerpt":"Today I am adding some heat sinks to the Raspberry Pi Cluster and why you might want to. Adding some Heat Sinks to my Raspberry Pi's One of the things we can do to reduce the temperature of the Raspberry Pi CPU's is to add a small heat sink. 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Stacking the Raspberry Pi (256 MB) The original Raspberry Pi does not have any mounting points. 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