lmorchard - Pebbling Club 🐧🪨

Overview | MCP230xx GPIO Expander on the Raspberry Pi | Adafruit Learning System

learn.adafruit.com
2013-03-18T05:08:28.000Z
raspberrypi electronics io imported:pinboard

Notes

While the Raspberry Pi packs and awful lot of punch for the price, and it's fairly flexible where HW expandability is concerned, there are situations where you might want a bit more basic digital IO. Thankfully, it's an easy problem to solve with an I2C-enabled device like the MCP23008 (for an extra 8 GPIO pins) or the MCP23017 (for an extra 16 GPIO pins). This tutorial will show you how you can get up and running quickly with either of these chips.

Feed

Unfurl

{ "author": "Kevin Townsend", "date": "2012-10-26T19:40:20.000Z", "description": "Using the MCP230xx GPIO expanders on the Raspberry Pi to add 8 or 16 additional GPIO ports to your board.", "image": "https://cdn-learn.adafruit.com/guides/images/000/000/139/medium800/_MG_0481.jpg", "logo": "https://learn.adafruit.com/assets/adafruit_favicon-d675616eb86845a7dba9e0f82b02bab9dbc195053d6f2adc8741e42ca351d2fe.svg", "publisher": "Adafruit Learning System", "title": "MCP230xx GPIO Expander on the Raspberry Pi", "url": "https://learn.adafruit.com/mcp230xx-gpio-expander-on-the-raspberry-pi/overview", "feed": "http://learn.adafruit.com/feed.rss", "lang": "en", "failed": true, "failedAt": 1728194800703, "failedError": "TimeoutError: Promise timed out after 10000 milliseconds", "expires": 1728364588044, "status": 200, "bodyLength": 55955, "duration": 8334 }
HowTo: The Instant Outline Tool

howto.opml.org
2009-02-09T16:24:40.000Z
io instantoutliner outlines opml friendfeed imported:pinboard

Notes

"The Instant Outline Tool for the OPML Editor allows a group of people to communicate using an outline to reflect each person's status. You have two windows -- one where you edit your outline, and the other where you view the outlines of all your buddies, the members of your workgroup."

Unfurl

{ "failed": true, "failedAt": 1728195527418, "failedError": "TimeoutError: Promise timed out after 10000 milliseconds" }
Before There Was Twitter, There Was Dave Winer’s Instant Outliner « I’m Not Actually a Geek

bhc3.wordpress.com
2009-01-16T17:45:02.000Z
io instantoutliner opml outlining twitter imported:pinboard

Feed

Embed

Unfurl

{ "failed": true, "failedAt": 1728195537399, "failedError": "TimeoutError: Promise timed out after 10000 milliseconds", "expires": 1728365914222, "status": 200, "bodyLength": 180992, "author": "Hutch Carpenter", "date": "2012-06-23T17:14:19.000Z", "description": "Twitter is the glamor girl these days. The latest triumph is the early picture of the U.S. Airways plane that belly flopped into the Hudson River. But before there was Twitter, there was Dave Winer…", "image": "https://bhc3.wordpress.com/files/2009/01/dave-winer-by-david-sifry.png", "logo": "https://s2.wp.com/i/webclip.png", "publisher": "I'm Not Actually a Geek", "title": "Before There Was Twitter, There Was Dave Winer’s Instant Outliner", "url": "https://bhc3.com/2009/01/16/before-there-was-twitter-there-was-dave-winers-instant-outliner/", "feed": "https://bhc3.com/feed/", "iframe": "<blockquote class=\"wp-embedded-content\" data-secret=\"YsyxDIJFJt\"><a href=\"https://bhc3.com/2009/01/16/before-there-was-twitter-there-was-dave-winers-instant-outliner/\">Before There Was Twitter, There Was Dave Winer’s Instant Outliner</a></blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https://bhc3.com/2009/01/16/before-there-was-twitter-there-was-dave-winers-instant-outliner/embed/#?secret=YsyxDIJFJt\" width=\"440\" height=\"248\" title=\"“Before There Was Twitter, There Was Dave Winer’s Instant Outliner” — I'm Not Actually a Geek\" data-secret=\"YsyxDIJFJt\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"></iframe><script type=\"text/javascript\">\n/* <![CDATA[ */\n/*! This file is auto-generated */\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n/* ]]> */\n</script>\n", "lang": "en", "duration": 9561 }
Twitter trail - Scripting News: 2/20/2007

www.scripting.com
2007-02-23T15:11:50.000Z
outlining twitter io imported:pinboard

Notes

Twitter + Outlining = Instant Outlining NG? "Then it occurred to me that Twitter and the outlining tool would probably be nice when used together, which led me to wonder if Twitter had an API, which it turns out it does."

Feed

Unfurl

{ "failed": true, "failedAt": 1728195667388, "failedError": "TimeoutError: Promise timed out after 10000 milliseconds", "expires": 1728366288274, "status": 200, "bodyLength": 14505, "image": "http://images.scripting.com/archiveScriptingCom/2006/12/19/header.gif", "logo": "https://t0.gstatic.com/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,SIZE,URL&url=http://www.scripting.com/2007/02/20.html&size=16", "title": "Scripting News: 2/20/2007", "url": "http://www.scripting.com/2007/02/20.html#twitterTrail", "feed": "http://www.scripting.com/rss.xml", "duration": 8391 }

0 - 50 of 4 items

10 25 50 100 250