[carpe] 2017-06-20 CARPE Conscribillati: Gabriel Sheeley: Beginning Microcontrollers

[jep200404 at columbus.rr.com]

Thanks to Pillar, Erin Moore, and Gabriel Sheeley for their generous
hospitality. They gave us plenty of cookies, pizza, salad and beverages.

Gabriel Sheeley gave a fun hands-on presentation,
which had us build microcontrollers on a wireless breadboard.
It was a dry run for Pillar's "Plugged-in" event in July.
When is Pillar's July "Plugged-in" event?

good: was set up before other folks showed up

It was a hand-on tutorial, building an Arduino based LED blinker
on a wireless breadboard. We had almost as many kits as people.

It started with building the power supply with a classic 7805 linear voltage
regulator, then adding an LED with a current limiting resistor,
then adding the microcontroller and another LED. The blinking of the second LED
was controlled by the microcontroller's software, which was preprogrammed.

There were good pictures of how things were to be wired.

Not all of the microcontrollers had the same software.
Some blinked three times after releasing the reset button.
Some slowly increased and decreased in brightness.
That code was from a standard Arduino example program,
more likely the first of the following two examples.

    https://www.arduino.cc/en/Tutorial/Fading
    https://www.arduino.cc/en/Tutorial/Fade

There was confusion over the difference between pin numbers of the
bare microcontroller chip and Arduino's concept of pin numbers.

Some people who had some familiarity with electronics wanted a schematic for
the board that we built.

Would be nice to have cheap magnifying lenses to see colors on resistors.

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link farm:

Onion based on ESP8266?
Onion Omega2 Project Book Vol. 1
https://docs.onion.io/omega2-project-book-vol1/ubidots-temperature-monitor.html
    (seems to have disappeared recently)
https://onion.io/store/
https://docs.onion.io/
Onion Omega2
https://www.kickstarter.com/projects/onion/omega2-5-iot-computer-with-wi-fi-powered-by-linux

heinlein
    wp:Time Enough for Love
    fair witness
    dorcas

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

You Can Now Print Out Sound Waves with a Raspberry Pi, Thanks to Waves Project
http://news.softpedia.com/news/you-can-now-print-out-sound-waves-with-a-raspberry-pi-thanks-to-waves-project-516465.shtml

Open Source TurtleBot 3 Robot Kit Runs Ubuntu and ROS on Raspberry Pi
https://www.linux.com/news/event/open-source-summit-na/2017/6/open-source-turtlebot-3-robot-kit-runs-ubuntu-and-ros-raspberry-pi

Ubuntu's Snapd Daemon Now Works Properly on Raspberry Pi and Raspberry Pi ZeroIt's
http://news.softpedia.com/news/snappy-s-snapd-daemon-now-works-properly-on-raspberry-pi-and-raspberry-pi-zero-516488.shtml

Low Tech High Tech
http://www.linuxjournal.com/content/low-tech-high-tech

Android-Based RaspAnd Linux OS for Raspberry Pi 3 Gets Better Video Performance
http://news.softpedia.com/news/android-based-raspand-linux-os-for-raspberry-pi-3-gets-better-video-performance-516508.shtml

2017 hacker board survey: Raspberry Pi still rules, but x86 SBCs make gains
http://linuxgizmos.com/2017-hacker-board-survey-raspberry-pi-still-rules-but-x86-sbcs-make-gains/

Intel pulls the plug on its Joule, Edison, and Galileo boards
http://linuxgizmos.com/intel-pulls-the-plug-on-its-joule-edison-and-galileo-boards/

REVIEW: Can Lemur’s $100 BlueDriver device and app match up to a $3,000 OBD-II scan tool?
http://www.equipmentworld.com/review-can-lemurs-100-bluedriver-device-and-app-match-up-to-a-3000-obd-ii-scan-tool/

Stora utsläpp från elbilarnas batterier
https://www.nyteknik.se/fordon/stora-utslapp-fran-elbilarnas-batterier-6851761
Tesla car battery production releases as much CO2 as 8 years of gasoline driving
https://wattsupwiththat.com/2017/06/20/tesla-car-battery-production-releases-as-much-co2-as-8-years-of-gasoline-driving/

Open source social robot kit runs on Raspberry Pi and Arduino
http://linuxgizmos.com/open-source-social-robot-kit-runs-on-raspberry-pi-and-arduino/