Received: by 10.66.88.200 with SMTP id bi8mr3437540pab.27.1349671402412; Sun, 07 Oct 2012 21:43:22 -0700 (PDT) X-BeenThere: hackerspace_brisbane@googlegroups.com Received: by 10.68.194.202 with SMTP id hy10ls21200087pbc.0.gmail; Sun, 07 Oct 2012 21:43:22 -0700 (PDT) Received: by 10.66.88.198 with SMTP id bi6mr25046pab.28.1349671402100; Sun, 07 Oct 2012 21:43:22 -0700 (PDT) Received: by 10.66.88.198 with SMTP id bi6mr25045pab.28.1349671402087; Sun, 07 Oct 2012 21:43:22 -0700 (PDT) Return-Path: Received: from mail-da0-f47.google.com (mail-da0-f47.google.com [209.85.210.47]) by gmr-mx.google.com with ESMTPS id nt8si4113229pbb.1.2012.10.07.21.43.22 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 07 Oct 2012 21:43:22 -0700 (PDT) Received-SPF: pass (google.com: domain of davidb...@gmail.com designates 209.85.210.47 as permitted sender) client-ip=209.85.210.47; Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of davidb...@gmail.com designates 209.85.210.47 as permitted sender) smtp.mail=davidb...@gmail.com; dkim=pass header...@gmail.com Received: by mail-da0-f47.google.com with SMTP id s35so1408899dak.20 for ; Sun, 07 Oct 2012 21:43:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:reply-to:in-reply-to:references:from:date:message-id :subject:to:content-type; bh=lMWTyJcTQIePLh3aALjgQGl4e0mBeKFPcwuHmZS+Sp4=; b=l4I+b6WRxb1uevP7z3V1MJT5QJKQbT6oUxwsAFCUo/iN8/aPRldJE1YTJhX1MilqNC O0obtPXVXTU0CAtxUdoPdFUbaRzRL1rFLH0IAY6FErgGk89sPZIgZR1cwzajx8lzm02q ceTtVj6PekkOvlBaiHYbPQwL6Cz9IBMO0GhxZp4mIac2ZMDbb4V+zRRwhCZh90txSLS3 yZONGy+gj9GhOXxqCniJYOazbxHJJNtZvHLvbhVlFy6XC1DVFHRl1GuTPCViSh8DfIUu qjLhL9SplNcoZLHkGCoUZaj1Qckf3CwEjJqexIJnFr0q4GZ8+RD2Q4Fd5yzkJ04AQV8u DWbQ== Received: by 10.68.213.199 with SMTP id nu7mr50763641pbc.75.1349671401862; Sun, 07 Oct 2012 21:43:21 -0700 (PDT) MIME-Version: 1.0 Received: by 10.66.220.105 with HTTP; Sun, 7 Oct 2012 21:43:01 -0700 (PDT) Reply-To: davidb...@gmail.com In-Reply-To: References: From: buzz Date: Mon, 8 Oct 2012 14:43:01 +1000 Message-ID: Subject: Re: RIP Hans Camenzind --> Creator of the 555 Timer IC To: hackerspace_brisbane@googlegroups.com Content-Type: multipart/alternative; boundary=e89a8ff1c01678b6d504cb84dc6a --e89a8ff1c01678b6d504cb84dc6a Content-Type: text/plain; charset=ISO-8859-1 here's an ebook with 50 %%% circuits in it: http://xtronic.org/circuit/555-circuits/ ( scroll to bottom of post to download ebook as a zip) On 8 October 2012 14:38, Dylan Lacey wrote: > Hans Camerzind made cheap, easy and ubiquitous timing based hobby projects > possible by inventing the 555 Timer IC. He died on August 8th, which many > people (Including myself) missed. > > I've been dismissive of Arduino projects because I find many of them don't > need an Arduino at all, and part of that is crotchety memories of the 555 > Timer IC making things blink and buzz YEARS ago, and cheaper to boot. > > The design contains 23 transistors, 15 resistors and a pair of diodes. It > sells for roughly fuckall cents. It is one of the IEEE's "25 chips that > shook the world" ( > http://spectrum.ieee.org/semiconductors/processors/25-microchips-that-shook-the-world/0) > and has been used in toys, props, and spacecraft. Forrest Mims wrote an > entire book about it. There was a recent contest celebrating it's use (The > results of which are here: > http://www.555contest.com/2011/04/the-555-contest-winners-announcement/and are a good explanation of stuff it can do). > > Sure, the Arduino can tweet you when a stock price drops below a certain > level AND your house is unlocked... But a 555 can easily and cheaply make > an LED blink on and off, and to many people inc. me, that's a much more > magical thing to achieve. > > Five repetitions of Five sets of Five seconds of silence for Hans > Camerzind. > > RIP. > > (Apologies to anyone for who this is old news. Searched the group, didn't > find any posts) > > -- > .:| Dylan Lacey |:. > .:| I Blog! It's not great: http://d-flat.dylanlacey.com |:. > > -- > You received this message because you are subscribed to the Google Groups > "hackerspace_brisbane" group. > To post to this group, send email to hackerspace_brisbane@googlegroups.com > . > To unsubscribe from this group, send email to > hackerspace_brisbane+unsubscribe@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/hackerspace_brisbane?hl=en. > --e89a8ff1c01678b6d504cb84dc6a Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable here's an ebook with 50 %%% circuits in it:=A0 http://xtronic.org/circuit/555-circuits/
( scroll to bottom of post to download ebook as a zip)

On 8 October 2012 14:38, Dylan Lacey <quad...@gmail.com> wro= te:
Hans Camerzind made cheap, easy and ubiquitous timing based hobby proj= ects possible by inventing the 555 Timer IC. =A0He died on August 8th, whic= h many people (Including myself) missed.

I've been dismissive of Arduino projects because I find many of th= em don't need an Arduino at all, and part of that is crotchety memories= of the 555 Timer IC making things blink and buzz YEARS ago, and cheaper to= boot.

The design contains 23 transistors, 15 resistors and a = pair of diodes. =A0It sells for roughly fuckall cents. =A0It is one of the = IEEE's "25 chips that shook the world" (http://spectrum.ieee.org/semiconductors/processors/25= -microchips-that-shook-the-world/0) and has been used in toys, props, a= nd spacecraft. =A0Forrest Mims wrote an entire book about it. =A0There was = a recent contest celebrating it's use (The results of which are here: <= a href=3D"http://www.555contest.com/2011/04/the-555-contest-winners-announc= ement/" target=3D"_blank">http://www.555contest.com/2011/04/the-555-contest= -winners-announcement/ and are a good explanation of stuff it can do).<= /div>

Sure, the Arduino can tweet you when a stock price drop= s below a certain level AND your house is unlocked... But a 555 can easily = and cheaply make an LED blink on and off, and to many people inc. me, that&= #39;s a much more magical thing to achieve.

Five repetitions of Five sets of Five seconds of silenc= e for Hans Camerzind.

RIP.

(Apologies to anyone for who this is old news. =A0Searched the group, did= n't find any posts)

--
.:| Dylan Lacey |:.
.:| I Blog!=A0 It's not great:=A0 http://d-flat.dylan= lacey.com |:.

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