[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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