https://aznot.com/index.php?action=history&feed=atom&title=OpenWest_2014%2FRaspberry_PiOpenWest 2014/Raspberry Pi - Revision history2026-04-30T07:22:31ZRevision history for this page on the wikiMediaWiki 1.41.0https://aznot.com/index.php?title=OpenWest_2014/Raspberry_Pi&diff=51&oldid=prevKenneth at 01:06, 12 May 20142014-05-12T01:06:49Z<p></p>
<p><b>New page</b></p><div>"Unleash the Raspberry Pi Through Physical Computing"<br />
: by Kevin Sidwar<br />
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"Conference speakers aren't the community elite, they are just people who build stuff and like to talk about it. Anyone can do it." -- Tweet<br />
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Unleash The Raspberry Pi Through Physical Computing - Skillshare - http://skl.sh/1boHmFo<br />
* 3 hours of videos and lessons<br />
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Physical Computing - interacting digitally with the analog world.<br />
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Internet of Things is a subset of Physical Computing.<br />
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Why the Pi? Huge ecosystem and a ton of resources online.<br />
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Buy them through "newark" for $35 without the $5 markup elsewhere (although you get hit with shipping)<br />
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The voltages are safer than licking a 9V battery.<br />
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Requires very little EE knowledge<br />
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SPI - communicating with other devices like other micro controllers<br />
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I2C - Inter-Integrated Circuit<br />
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Serial<br />
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Cool projects:<br />
* RFID reader<br />
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Keep pins straight: (keep track of the pins, don't fry your Pi)<br />
* Raspberry Leaf - good printout to keep track of pin outs<br />
* Pi cobbler is another good way<br />
* Verify twice, connect once<br />
* Pins are 3.3V not 5V!<br />
* Use isolated jumper wires (don't short out the pins)<br />
* Don't touch header while powered on<br />
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GPIO - General Input / Output<br />
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Write Example:<br />
import RPi.GPIO as GPIO<br />
GPIO.setmode(GPIO.BOARD)<br />
GPIO.setup(12, GPIO.OUT) # (OUT/HIGH/LOW)<br />
GPIO.cleanup()<br />
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Read Example:<br />
???<br />
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I2C Example:<br />
import smbus<br />
i2c = smbus.smbus??<br />
temp = bus.read_word_data(0x48, 0)<br />
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SPI Code example<br />
???<br />
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Twython - twitter python client<br />
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Twilio - send/receive text/phone<br />
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Demo - http://twitter.com/PiHomeMonitor<br />
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Source code for this presentation - http://github.com/sidwarkd/openwest_demo</div>Kenneth