Computers

From Bwtm

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This page is about computers.

1 ZX80, ZX81, ZX spectrum
2 Links
3 Linux
- 3.1 news
- 3.2 Raspberry Pi
4 VIA APC
5 TI
6 Security cams
7 ref

ZX80, ZX81, ZX spectrum

ZX81: Small black box of computing desire. http://www.bbc.co.uk/news/magazine-12703674

Sir Clive Sinclair is something of a hero to me, and I suspect a lot of other UK computer users in their 30's and older. He more or less single handedly created the UK home computer market. In the interview below Sir Clive discusses many issues: His view of the internet, the future of electric vehicles, flying cars, and the development of the computer. It's a typically eclectic mix of ideas, with ambitious schemes side by side with very perceptive comments on the current state of technology. An edited version of the interview below will appear on iPM this Saturday, below is the source material - largely unedited. http://www.bbc.co.uk/blogs/ipm/2008/06/sir_clive_sinclair.shtml

Links

http://gofreerange.com/printer

http://www.codecademy.com/#!/exercises/0

Linux

news

Bare metal http://www.raspberrypi.org/phpBB3/viewforum.php?f=72&sid=f67a38421f7ec9764382bd9155e8b863

http://www.wired.com/geekmom/2012/08/system-76/

Raspberry Pi

News

http://blog.makezine.com/2013/01/02/raspberry-pi-educational-manual/

Touch sensing is handled by an MPR121 Capacitive Touch Sensor from SparkFun, for which I ported existing Arduino code to Python. This board communicates with a Python script on a Raspberry Pi via I2C. The script watches for new touches and triggers drum samples using pygame. Audio from the Pi’s line out is run through a small amplifier I built using an LM386, which is based on a circuit from Eric Rosenthal‘s Basic Analog Circuits class. The amp is connected to a salvaged speaker mounted under the holes in the lid. http://blog.makezine.com/2012/12/15/beetbox-sets-standard-for-vegetable-based-instruments/

http://www.raspbmc.com/about/

Summer Coding Contest results (finally!) http://www.raspberrypi.org/archives/2544

http://elinux.org/RPi_Easy_SD_Card_Setup

Pi Crust breakout board http://picru.st/

http://www.geeksaresexy.net/2012/10/16/raspberry-pi-lovers-share-their-projects/

There’s been a flurry of discussion on the Pure Data developer lists about how to tweak the sound synthesis program to run well on the Raspberry Pi. Shawn Greenlee got his Pi working and has a video up on Vimeo showing some patches running. It looks like he’s using an inexpensive USB sound card for output, but others have had success with the HDMI audio out from the Pi as well. It seems like the analog output still needs some work on the driver side, as most people seem to get choppy output after a while. This seems like good progress though; I’ve always thought that sound synthesis (and Pure Data) is a kind of killer app for these tiny cheap embedded Linux computers. http://blog.makezine.com/2012/10/05/pure-data-running-on-the-raspberry-pi/

The Adafruit team has been hard at work on a new programming tool for the Raspberry Pi: WebIDE. It launched today and is live and available. This is similar to the Beaglebone’s Cloud9 IDE/Node.JS/Bonescript solution, but seems friendlier; point your web browser at the Pi and start programming (well, almost). http://blog.makezine.com/2012/10/05/adafruit-webide-is-live-and-available/

Maker Faire New York: Learn About (and Buy a) Raspberry Pi http://blog.makezine.com/2012/09/28/maker-faire-new-york-learn-about-and-buy-a-raspberry-pi/

How do you connect more than two USB devices? Use a hub to increase the number of ports. Some keyboards have hubs built in which would work well.

Does the device support networking? Is there Wi-Fi? The Model B version of the device includes 10/100 wired Ethernet. There is no Ethernet on the Model A version (which we expect to be taken up mostly by the education market), but Wi-Fi will be available via a standard USB dongle.

Musical Hacks For Raspberry Pi http://blog.makezine.com/2012/08/28/236452/

shop

Getting Started with Raspberry Pi An accessible programming and hardware hacking platform for everyone By Matt Richardson, Shawn Wallace http://shop.oreilly.com/product/0636920023371.do

http://www.makershed.com/Raspberry_Pi_Starter_Kit_Includes_Raspberry_Pi_p/msrpik.htm