<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>My very first experience, before I was a student, was to use a PDP 11 and write a simple program, it was saved on punched tape. It computed some numbers and then, to my great fascination, because it included a loop featuring chr(7), or something like that, the bell on the terminal would ring.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>However, I am not one to dwell on past technology. It may be interesting to observe what happened in times gone-by but I'd much sooner spend time creating something new.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style:
normal;"><span>Brian<br></span></div><div><br></div> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Tomas Holderness <tomasholderness@gmail.com><br> <b><span style="font-weight: bold;">To:</span></b> <br><b><span style="font-weight: bold;">Cc:</span></b> bradford <Bradford@mailman.lug.org.uk> <br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, 22 November 2012, 14:18<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Bradford] Raspberry Pi Hackday<br> </font> </div> <br><div id="yiv747504207">Or, just to throw in another suggestion - anyone in the group who used to use punched tape? My dad and I were chatting last week about how to make a sensor for the RPi to read punch tape,
and it generated some interest on twitter: <a rel="nofollow" target="_blank" href="https://twitter.com/iHolderness/status/268092434209193985">https://twitter.com/iHolderness/status/268092434209193985</a><br>
<br>Cheers,<br>Tom<br><br><div class="yiv747504207gmail_extra"><br><br><div class="yiv747504207gmail_quote">On 22 November 2012 13:35, Tomas Holderness <span dir="ltr"><<a rel="nofollow" ymailto="mailto:tomasholderness@gmail.com" target="_blank" href="mailto:tomasholderness@gmail.com">tomasholderness@gmail.com</a>></span> wrote:<br>
<blockquote class="yiv747504207gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">The event made slashdot this morning (<a rel="nofollow" target="_blank" href="http://hardware.slashdot.org/story/12/11/22/0342241/entries-open-for-first-ever-24-hour-raspberry-pi-hackathon">http://hardware.slashdot.org/story/12/11/22/0342241/entries-open-for-first-ever-24-hour-raspberry-pi-hackathon</a>) - cool, but slightly daunting! I'm still up for it, but think we need to go in with an agreed idea. Will there be opportunity to discuss on Wednesday (or after meeting)?<br>
<br>The Open Web Apps idea sounds interesting and I'd be interested in hearing more, though I've only just started experimenting with web stuff (Javascript). Generally, some mix of Python, C and SQL is where I'm happiest when coding, <br>
<br>The ideas I had for the hack event revolve around using the RPi as a low cost sensor platform to collect data (e.g. temperature), store it locally in a database and then serve it to the web. I thought of this as sensors/motes and the like are a big thing in the engineering world right now (<a rel="nofollow" target="_blank" href="http://en.wikipedia.org/wiki/Sensor_node">http://en.wikipedia.org/wiki/Sensor_node</a>).<br>
<br>Specifically for the hack event, I had thought about connecting an air temperature sensor to the Pi, writing the software to read and store this is SQLite/CouchDB, and then writing a web front-end either using a simple python server or lighttpd/similar to serve this from the Pi. The web page with the data could contain a map showing the sensor location and a tasty visualisation of time-series air temperature (probably using something from here: <a rel="nofollow" target="_blank" href="http://selection.datavisualization.ch/">http://selection.datavisualization.ch/</a>). Optionally, I had mulled over adding batteries/solar panels to power the Pi, although power consumption of wi-fi dongle would probably mean LAN cable only. This wouldn't be a true sensor network set-up, but could be a nice use of the Pi in the time available. What do you think?<br>
<br>Cheers,<br><br>Tom<div class="yiv747504207HOEnZb"><div class="yiv747504207h5"><br><div class="yiv747504207gmail_extra"><br><br><div class="yiv747504207gmail_quote">On 21 November 2012 21:14, Alice Kaerast <span dir="ltr"><<a rel="nofollow" ymailto="mailto:alice@kaerast.info" target="_blank" href="mailto:alice@kaerast.info">alice@kaerast.info</a>></span> wrote:<br>
<blockquote class="yiv747504207gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">On 21 November 2012 20:56, Robert Burrell Donkin<br>
<div><<a rel="nofollow" ymailto="mailto:robertburrelldonkin@gmail.com" target="_blank" href="mailto:robertburrelldonkin@gmail.com">robertburrelldonkin@gmail.com</a>> wrote:<br>
> On Sat, Nov 17, 2012 at 9:18 PM, Tomas Holderness<br>
> <<a rel="nofollow" ymailto="mailto:tomasholderness@gmail.com" target="_blank" href="mailto:tomasholderness@gmail.com">tomasholderness@gmail.com</a>> wrote:<br>
>> Hi all,<br>
>><br>
>> I'm a Linux geek recently returned to Bradford from working up north (Dave's<br>
>> a family friend) and I was hoping to pop along to the next meeting. However,<br>
>> I'd also seen the pi bake-off hack event and would be well up for going as<br>
>> part of team if you're interested. I've got a pi already, and a couple of<br>
>> ideas of things we could build.<br>
><br>
> Are we going for it...?<br>
<br>
</div>I think that probably depends on the ideas and the fit of skills.<br>
Most recently my language of choice is bash and my skills are in<br>
devops, though I can also do Ruby, Javascript, PHP and a little Python<br>
and Io.<br>
<br>
I've been considering building a minimal OS capable of running Open<br>
Web Apps for the Pi as one great project to look at. Not sure we'd<br>
get very far in a day though.<br>
<br>
I'm certainly up for it if others are.<br>
<br>
Regards<br>
<span><font color="#888888">Alice<br>
</font></span><div><div><br>
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