{"id":476,"date":"2014-07-12T20:44:43","date_gmt":"2014-07-13T03:44:43","guid":{"rendered":"http:\/\/10.43.101.63:24469\/?p=476"},"modified":"2017-02-21T00:55:55","modified_gmt":"2017-02-21T08:55:55","slug":"pi-shield-spi-test","status":"publish","type":"post","link":"https:\/\/aarontc.com\/archive\/2014\/07\/pi-shield-spi-test\/","title":{"rendered":"Pi Shield SPI Test"},"content":{"rendered":"

Our Pi Shield<\/a> is progressing nicely. 5V SPI device running on a 3.3V SPI bus from the Raspberry Pi? Check.<\/p>\n

Version 1.0.0 testing complete. Bugs to be fixed, and version 1.1.0 to be released in the near future. Stay tuned!<\/p>\n

\"7<\/a>

5V SPI LED driver (MAX7219CNG) on the 3.3V SPI bus of the Raspberry Pi, level translation by Idle Engineers’ Pi Shield.<\/p><\/div>\n

<\/p>\n

\"Pi<\/a>

The Pi Shield with breadboard mounted, holding a test circuit for the MAX7219 LED controller with eight 7-segment LED displays, and an empty Pi Shield mounted to a Raspberry Pi.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Our Pi Shield is progressing nicely. 5V SPI device running on a 3.3V SPI bus from the Raspberry Pi? Check. Version 1.0.0 testing complete. Bugs to be fixed, and version 1.1.0 to be released in the near future. Stay tuned!<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[6],"tags":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6PV8H-7G","jetpack-related-posts":[{"id":17,"url":"https:\/\/aarontc.com\/archive\/2010\/04\/recovering-from-a-multiple-disk-failure-with-linux-software-raid5\/","url_meta":{"origin":476,"position":0},"title":"Recovering from a multiple-disk failure with Linux software RAID5","author":"Aaron","date":"April 28, 2010","format":false,"excerpt":"The scenario is this: I have a system with several external USB hard drives that are part of a RAID5 array. (It's a work in progress, I'm simply out of SATA controllers right now.) The problem is that sometimes (about once per month) two or more of the drives will\u2026","rel":"","context":"In "Linux"","block_context":{"text":"Linux","link":"https:\/\/aarontc.com\/archive\/category\/linux\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":104,"url":"https:\/\/aarontc.com\/archive\/2010\/05\/brainstorming-project-page-makeup\/","url_meta":{"origin":476,"position":1},"title":"Brainstorming Project Page Makeup","author":"Aaron","date":"May 14, 2010","format":false,"excerpt":"On the idea of what a clean, useful, and simple project description page should look like: I was giving this a bit of thought last night and thought I'd share what I came up with. Perhaps some recommendations can improve the list? :) Here's what I think a project page\u2026","rel":"","context":"In "Brainstorming"","block_context":{"text":"Brainstorming","link":"https:\/\/aarontc.com\/archive\/category\/brainstorming\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":292,"url":"https:\/\/aarontc.com\/archive\/2011\/04\/automatically-keywording-unmasking-gentoo-packages\/","url_meta":{"origin":476,"position":2},"title":"Automatically Keywording\/Unmasking Gentoo Packages","author":"Aaron","date":"April 23, 2011","format":false,"excerpt":"Today I wanted to try a masked version of KDE on my laptop. As KDE is a very large set of packages, I was not looking forward to manually keywording every required package. Luckily, someone else has solved this problem. A quick Google search led me to autounmask which didn't\u2026","rel":"","context":"In "Gentoo"","block_context":{"text":"Gentoo","link":"https:\/\/aarontc.com\/archive\/category\/linux\/gentoo\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":344,"url":"https:\/\/aarontc.com\/archive\/2012\/05\/updated-resume\/","url_meta":{"origin":476,"position":3},"title":"Updated R\u00e9sum\u00e9","author":"Aaron","date":"May 3, 2012","format":false,"excerpt":"Newly updated version of my R\u00e9sum\u00e9 is now online! Check it out! :)","rel":"","context":"In "Site News"","block_context":{"text":"Site News","link":"https:\/\/aarontc.com\/archive\/category\/site-news\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":315,"url":"https:\/\/aarontc.com\/archive\/2011\/12\/linux-is-not-windows\/","url_meta":{"origin":476,"position":4},"title":"Linux is Not Windows","author":"Aaron","date":"December 18, 2011","format":false,"excerpt":"Yesterday, Mark pointed me at the following article, which I feel is quite relevant to most Linux versus Windows debates that go on these days. In particular, the analogies of cars versus motorbikes, and paid support (no community) versus free support (community), seem to do a fantastic job of explaining\u2026","rel":"","context":"In "Linux"","block_context":{"text":"Linux","link":"https:\/\/aarontc.com\/archive\/category\/linux\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":367,"url":"https:\/\/aarontc.com\/archive\/2013\/04\/lossless-hd-audio-over-hdmi-with-pulseaudio-under-linux\/","url_meta":{"origin":476,"position":5},"title":"Lossless HD Audio over HDMI with PulseAudio under Linux","author":"Aaron","date":"April 13, 2013","format":false,"excerpt":"Today I finally managed to get lossless HD audio working from my Linux media PC over HDMI! I'll probably update this post as time goes, but for now it's a quick recipe of what I did: Configure a PulseAudio ALSA sink to use the HDMI output Video cards present HDMI\u2026","rel":"","context":"In "Linux"","block_context":{"text":"Linux","link":"https:\/\/aarontc.com\/archive\/category\/linux\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/posts\/476"}],"collection":[{"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/comments?post=476"}],"version-history":[{"count":7,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/posts\/476\/revisions"}],"predecessor-version":[{"id":606,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/posts\/476\/revisions\/606"}],"wp:attachment":[{"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/media?parent=476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/categories?post=476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/tags?post=476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}