[carpe] 2017-02-21 CARPE Conscribillati: time lapse weather and much more

jep200404 at columbus.rr.com jep200404 at columbus.rr.com
Thu Feb 23 21:40:27 EST 2017


2017-02-21 18:00 at Pillar's The Forge
https://www.meetup.com/techlifecolumbus/events/237000824/

Thanks to Pillar and Erin Moore for their hospitality.
There was more pizza, salad, and cookies than we could eat.
There were plenty of beverages also.

There were 24 folks for this meeting.

next month's meeting 2017-03-21 will be on automated safecracking

    https://www.meetup.com/techlifecolumbus/events/237886398/
    https://www.youtube.com/watch?v=CSCy-B9b3ic
    http://www.irongeek.com/i.php?page=videos/bsidescleveland2016/mainlist
    http://www.irongeek.com/i.php?page=videos/bsidescleveland2016/205-safecracking-on-a-budget-redux-david-hunt-and-zack-nagaich
    http://2014.ruxcon.org.au/assets/2014/slides/rux-safe-cracking.pdf

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Time Lapse Sky Photography with Raspberry Pi by Eric Floehr
https://github.com/efloehr/timelapse
third version, work in progress

more informal interactive version of what he presented at pyohio
http://pyvideo.org/pyohio-2015/art-and-science-with-six-million-timelapse-images.html

he will get presentation on line

much eye candy

especially unusual animations

Canon A510
    3.2 megapixel (2048x1536?)

all cameras are old

cold air funnel
night time thunderstorm
night time shelf cloud freaky

used tmpfs to reduce wear to SDHC memory
gphoto2 is pulling image directly from camera
create buffers where possible
rpi and nas connected to switch
static ip addresses
256 MB ramdisk
r4 fast encryption
ssh
"$GPHOTO" --capture-image-and-download
lightning sensor
birds caught in flight
merge all birds of a day: creepy hitchcockesque
then transferred to hard drive in NAS
first rpi died
first camera lasted 319 days, 2.7 million pics
had 6.9 million pictures, 21.9 trillion pixels
stored image metadata in postgresql with django orm
pull metadata with python, pillow, and pyxif
sunrises and sunsets are same color
could see difference between latest sunrise and earliest sunset
and earliest sunrise and latest sunset
plot of sunrise/sunset looks remarkably straight with curves ends
July 13, 2015 Derecho passing through Marysville, Ohio - YouTube
youtube.com/watch?v=0FOWqo4G9sI
25 seconds per hour
wiggling of trees
different layers of clouds going in different directions
movies with all frames about 3 days long
sunrise
sunset 75 minutes before sunset each day
moon
jupiter
interesting
    night: bright
        lightning
        airplanes: dash lines
            near helicopter taking off: very bright
            hot air balloon
        planets and stars
            have color
        moon
    day: dark
stack all interesting pictures
negative image
parallelizing
striper: visualize a whole day in one image
compare days over year
compare day year to year
tripod velcro straps
conical projection
max color
min color
400 days in one short movie
image analysis
computer vision
PySimpleCV
look for faces in clouds: some are creepy

he gave away one of his cameras to someone who was going to do time lapse
with it
winner reports results back at a carpe meeting

need to do everything in 10 seconds

15 minutes of 1080p was about 1660000000 bytes (1.66e9 bytes)

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Someone wanted just one (or few) lithium battery charger
and bought many to satisfy minimum order requirements.
He gave away the extras. Thank you!

    connections:

        USB mini-B jack
        IN-
        IN+
        BAT+
        BAT-

    chip

        TP4056
        465[1I]2P

        or

        TP4056
        466BOZ

    see http://www.haoyuelectronics.com/Attachment/TP4056-modules/TP4056.pdf

        last page shows application including thermistor connection
        to monitor temperature of cell

        without that thermistor,
        will the board mischarge (overcharge???) the battery?

        it is a linear regulator, so does chip get hot?

            chip heat = (input voltage - output voltage) * output current

    i don't know if the following match the boards given away
    the pictures look very similar

        R4 is marked 122 on the actual boards

        http://www.electroschematics.com/10551/tp4056-lipo-battery-charger-rc-toys/
        TP4056 LiPo Battery Charger For RC Toys

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After the meeting at Pillar, we adjourned to Brazenhead (1027 W Fifth Ave).
http://www.hdrestaurants.com/brazenhead/5thavenue/
It went so well, it is now a standard event after main meeting.

Exactly 66+2/3% are amateur radio operators

another was interested in taking exam
technician license amateur radio

amateur radio operators have priority on 2.4 GHz

open source ecology
    tractor design

wp: prefix means Wikipedia
To get good answers, consider following the advice in the links below.
http://catb.org/~esr/faqs/smart-questions.html
http://web.archive.org/web/20090627155454/www.greenend.org.uk/rjk/2000/06/14/quoting.html

Build Your Own * From Scratch
wp:David J. Gingery
http://gingerybooks.com/
http://gingerybookstore.com/

look at this dirt. it's red, so it must have iron. let's smelt it.

wp:Technologic Systems
embeddedarm.com

lora network
lora gateway
http://lora.multitech.com/

iot
lora
higher-level visualization

rtl sdr (software defined radios)

dinner plate - plastic din rail

node red on raspbian
http://nodered.org/docs/hardware/raspberrypi.html
http://nodered.org/

http://hobbyking.com/
http://www.banggood.com/
http://www.dx.com/

LTE on Raspberry Pi

    Quortus Puts LTE Core on Raspberry Pi HW
    http://www.sonlte.com/tag/raspberry-pi/

    LTE core network embedded on Raspberry Pi
    http://telecoms.com/142362/lte-core-network-embedded-on-raspberry-pi/

    Raspberry Pi 3 snags LTE support with help of new add-on chip
    http://www.pcworld.com/article/3145614/computers/raspberry-pi-3-gets-low-bandwith-lte-with-add-on-chip.html

    Raspberry Pi 3 gets low-bandwith LTE with add-on chip
    http://www.computerworld.com/article/3145442/windows-pcs/raspberry-pi-3-gets-low-bandwith-lte-with-add-on-chip.html

    PiAnyWhere 4G & LTE Hat for the Raspberry Pi BETA
    https://www.pianywhere.com/product/pianywhere-4g-raspberry-pi-hat/

    LTE IoT kits include Raspberry Pi and AWS friendly models
    http://linuxgizmos.com/lte-iot-kits-include-raspberry-pi-and-aws-friendly-models/

    How To connect a Raspberry Pi to a 3G network
    http://garethhowell.com/wp/connect-raspberry-pi-3g-network/

    How to use LTE modem on raspberry pi (alcatel l800 ...
    http://www.msmikoto.com/2015/02/how-to-use-lte-modem-on-raspberry-pi.html

    PiAnywhere 4G & LTE Hat for the Raspberry Pi
    http://www.instructables.com/id/PiAnyWhere-4G-LTE-Hat-for-the-Raspberry-Pi/

    Problems with Verizon U620L 4G/LTE modem
    https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=121326

    altair enables lte connectivity for raspberry pi in first-of-its-kind trial
    https://altair-semi.com/press-releases/altair-enables-lte-connectivity-for-raspberry-pi-in-first-of-its-kind-trial/

software defined radios (SDR)

    microcenter

        Adafruit Industries Software Defined Radio Receiver USB Stick - RTL2832 w/R820T
        http://www.microcenter.com/product/463176/Software_Defined_Radio_Receiver_USB_Stick_-_RTL2832_w-R820T
        Software Defined Radio Receiver USB Stick - RTL2832 w/R820T
        https://www.adafruit.com/products/1497

    Here's the RTL SDR USB Dongle - this is the one I have that works fine
    https://www.amazon.com/NooElec-RTL-SDR-RTL2832U-Software-Packages/dp/B008S7AVTC

    Getting Started with RTL-SDR and SDR-Sharp A quick-start guide for
    https://learn.adafruit.com/getting-started-with-rtl-sdr-and-sdr-sharp/download-and-install-software?gclid=CNiGu__Oo9ICFYm4wAodquwP0Q

    The BIG List of RTL-SDR Supported Software
    http://www.rtl-sdr.com/big-list-rtl-sdr-supported-software/

    Airspy HF+: An upcoming low cost yet high performance HF SDR
    http://www.rtl-sdr.com/airspy-hf-upcoming-low-cost-yet-high-performance-hf-sdr/

    RTL SDR Quick Start Guide
    http://www.rtl-sdr.com/rtl-sdr-quick-start-guide/

    Spektrum: New RTL-SDR Spectrum Analyzer Software
    http://www.rtl-sdr.com/spektrum-new-rtl-sdr-spectrum-analyzer-software/

    SDR (Software Defined Radio
    http://osmocom.org/projects/sdr/wiki/rtl-sdr

    RTLSDR Scanner
    https://sourceforge.net/projects/rtlsdrscanner/

    rtlsdr.org wiki
    https://rtlsdr.org/softwarewindows

    http://pyvideo.org/pyohio-2014/software-radio-with-ctypes.html

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link farm

Open source smart home platform gains Ubuntu snap packages
http://linuxgizmos.com/open-source-smart-home-platform-gains-ubuntu-snap-packages/

Robot arm kit features a Raspberry Pi HAT
http://linuxgizmos.com/robot-arm-kit-features-a-raspberry-pi-hat/

sacre bleu!
someone added snaps
WD My Passport Wireless Linux Hacks
https://scribblesandsnaps.com/2017/02/10/wd-my-passport-wireless-linux-hacks/

helmut hacking:

    https://www.youtube.com/watch?v=JQozKx5dLr4
    https://www.youtube.com/watch?v=T51P9NHjXmY
    https://www.youtube.com/watch?v=omOhzA8KlNs
    https://www.youtube.com/watch?v=M1wwqilqRps

Orange Pi as Time Machine Server
http://piboards.com/2017/02/13/orange-pi-as-time-machine-server/

the mearm pi
https://www.raspberrypi.org/blog/mearm-pi/

raspberry pi zero pie-ink name badge
https://www.raspberrypi.org/blog/raspberry-pi-zero-pie-ink-name-badge/

Using Scripting Languages in IoT: Challenges and Approaches
https://www.linux.com/news/event/elcna/2017/2/using-scripting-languages-iot-challenges-and-approaches

openSUSE on Raspberry Pi 3: From Zero to Functional System in a Few Easy Steps
https://www.suse.com/communities/blog/opensuse-raspberry-pi-3-zero-functional-system-easy-steps/

wp:Magic smoke

Internet-enable your microcontroller projects for under $6 with ESP8266
https://opensource.com/article/17/2/internet-microcontroller-board-esp8266

RPi-friendly home automation kit adds voice recognition support
http://linuxgizmos.com/rpi-friendly-home-automation-kit-adds-voice-recognition-support/

Kaspersky: No whiff of Linux in our OS because we need new start to secure IoT
http://www.zdnet.com/article/kaspersky-no-whiff-of-linux-in-our-os-because-we-need-new-start-to-secure-iot/

Meet Flint OS, a Chromium OS Fork for Raspberry Pi & PCs That Runs Android Apps
http://news.softpedia.com/news/meet-flint-os-a-chromium-os-fork-for-raspberry-pi-pcs-that-runs-android-apps-exclusive-513173.shtml

Udacity open sources its self-driving car simulator for anyone to use
https://techcrunch.com/2017/02/08/udacity-open-sources-its-self-driving-car-simulator-for-anyone-to-use/
https://github.com/udacity/self-driving-car-sim

Seeed Studio WiFi Serial Transceiver Module with ESP8266 - Medium
http://www.microcenter.com/product/455924/WiFi_Serial_Transceiver_Module_with_ESP8266_-_Medium

LibreELEC 8.0.0 Officially Released for Raspberry Pi SBCs with Kodi 17 "Krypton"
http://news.softpedia.com/news/libreelec-8-0-0-officially-released-for-raspberry-pi-sbcs-with-kodi-17-krypton-513206.shtml


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