Difference between revisions of "NERP"

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** [http://www.element14.com/community/groups/raspberry-pi/blog/2012/09/11/raspberry-pi-lapdock-tricks Atrix lapdock tricks]: documents how Jay has tried a super cap and a USB battery pack to buffer power to the Pi
 
** [http://www.element14.com/community/groups/raspberry-pi/blog/2012/09/11/raspberry-pi-lapdock-tricks Atrix lapdock tricks]: documents how Jay has tried a super cap and a USB battery pack to buffer power to the Pi
  
=== Software ===
 
==== Linux ====
 
* [http://www.raspberrypi.org/downloads Raspberry Pi Foundation downloads page] has instructions on flashing the SD card
 
* [http://www.raspberrypi.org/downloads Raspbian "Wheezy"]: recommended for general purpose
 
* [http://www.raspbmc.com/ Raspbmc]: recommended for media center usage
 
* [http://learn.adafruit.com/adafruit-raspberry-pi-educational-linux-distro/occidentalis-v0-dot-1 Adafruit Occidentalis]: based on Raspbian "Wheezy" with improved hardware interfacing and wi-fi support
 
* [http://www.element14.com/community/groups/raspberry-pi/blog/2012/09/20/upgrade-to-turbo-mode-without-reflashing Upgrade Raspbian for overclocking without reflashing]
 
 
==== Applications ====
 
* Arduino IDE runs and uploads ok USB-connected Arduino with Raspbian "Wheezy"; just install via "apt-get install arduino".
 
* [https://projects.drogon.net/raspberry-pi/wiringpi/ WiringPi] is a Python library which aims to make electronics interfacing as high-level as Arduino
 
* [http://elinux.org/RPi_Low-level_peripherals GPIO examples] in many languages
 
* [http://www.memetic.org/quake-3-with-sound-for-the-raspberry-pi/ Quake] for the current Raspbian "Wheezy" image
 
* "hello world" programs in /opt/vc/src especially the 1080p HD playback demo: /opt/vc/src/hello_pi/hello_video/
 
** More details in recorded [http://www.element14.com/community/docs/DOC-44459/l/video-programming-the-raspberry-pi-with-raspberry-pi-co-founder-eben-upton webinar by Eben Upton]
 
 
=== Support ===
 
* [http://www.raspberrypi.org/phpBB3/ RaspberryPi.org Forum] is a good resource
 
* [http://www.element14.com/community/groups/raspberry-pi Raspberry Pi group on element14 Community] is quite active too and another place to ask questions
 
* [http://elinux.org/R-Pi_Troubleshooting The eLinux wiki troubleshooting guide]
 
* [http://elinux.org/RPi_VerifiedPeripherals Listing of verified equipment] ''add your own once tested!''
 
* [http://www.element14.com/community/docs/DOC-44703/l/raspberry-pi-wifi-adapter-testing WiFi adapter testing] done by Drew
 
 
=== Tutorials ===
 
* [http://learn.adafruit.com/category/raspberry-pi Adafruit Learning System]: excellent tutorials for the Pi by Adafruit
 
* [http://www.element14.com/community/groups/raspberry-pi/blog/authors/fustini element14 Raspberry Pi blog] where Drew posts his tutorials
 
** [http://www.element14.com/community/groups/raspberry-pi/blog/tags/i2c I2C interfacing]: details of temperature sensor and real-time clock that Drew demo'd
 
* [http://www.doctormonk.com/2012/08/led-clock-using-raspberry-pi.html LED Clock]: details of the LED 7-segment module clock that Drew demo'd
 
** [http://learn.adafruit.com/matrix-7-segment-led-backpack-with-the-raspberry-pi/ Adafruit has now made their own tutorial]
 
* [http://www.youtube.com/watch?v=hmxS6KqiAK8 Intro to RPi.GPIO]: Bonnie's "lightning" intro to controlling Pi's GPIO with Python
 
** [https://github.com/misterbonnie/presentations/raw/master/pycon/pi_con.odp Slides]
 
 
=== Reference ===
 
* [http://elinux.org/RPi_Tutorial_EGHS:GPIO_Protection_Circuits GPIO protection circuits]: different approaches to safely interfacing with RPi pins
 
** [http://www.sparkfun.com/tutorials/65 SparkFun sensor interfacing]: general tutorial for logic level conversion
 
* [http://www.raspberrypi.org/phpBB3//viewtopic.php?f=44&t=12498 Max current for GPIO pins]
 
** [http://www.scribd.com/doc/101830961/GPIO-Pads-Control2 GPIO pads control]: documentation by SoC engineer Gert van Loo
 
*** ''All the electronics of the pads are designed for 16mA.''
 
** [http://www.thebox.myzen.co.uk/Raspberry/Understanding_Outputs.html Understanding Output]: explains relationship between voltage, current and impedence
 
*** ''A maximum of 16mA per pin with the total current from all pins not exceeding 51mA.''
 
* [https://projects.drogon.net/raspberry-pi/wiringpi/pins/ Good Pinout Diagrams]
 
** ''Old and new pinouts from each numbering scheme.''
 
 
=== Links ===
 
* [http://www.adafruit.com/blog/category/raspberry-pi/ Adafruit blog posts] about Raspberry Pi
 
* [http://www.raspberrypi.org/archives/592 Libraries, codecs, OSS]: an informative post on the media playback architecture
 
* [http://www.raspberrypi.org/archives/1655 A Raspberry Pi, hosting a Raspberry Pi]: for those wondering how well it would do as a low-power server
 
  
 
[[Category:Interest Groups]]
 
[[Category:Interest Groups]]

Revision as of 21:49, 27 July 2020

Virtual NERP: Link to the Jitsi videoconference

Jitsi Meet is a free open source videoconferencing platform. It runs in the browser and requires no account or log in. Just click the link: https://meet.jit.si/NERP- (07/XX/20)

Well, you live and learn, I guess. Use Google's Chrome browser or the standalone app for your platform. Ironic, isn't it?. Turns out Jitsi Meet's code isn't fully compatible with Firefox and Safari. It may work, but it might also drag down the connection for everybody else. They're working on it.,..

The Jitsi Meet session will start at ~7:20pm. Changes or corrections will be posted here.

Overview

Not Exclusively Raspberry Pi (NERP) is an interest group focused on demonstrations and open discussion of embedded systems, control, and general electronics.

Meetings

Past

Raspberry Pi [This section is mainly of historical interest.]

Hardware