January 2020
Meeting Notes
Compiled by Dave Jaffe
Contributions from Kevin Appert and others
SVFIG on Google+ Hangout:
long
url - tinyurl
SVFIG
on Google+ - SVFIG on
YouTube - SVFIG on
YouTube Live
SVFIG YouTube
Channel
Videos:
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10:00 |
Coffee and a Chat |
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10:33 |
ESP32 Interrupts - CH Ting
"I coded an
interrupt service routine for Don Golding’s AI Bot. Without a robot board,
I built an RGB Lightbox with a NodeMCU ESP32S kit. It has four potentiometers
to control a white LED and an RGB tricolor LED. Every tenth of a second the
ESP32 is interrupted. It reads the four potentiometers and drives four LEDs
with PWM accordingly. The interrupt service routine can be incorporated into
the robot code for its instinct level programming."
- Slides
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10:56 |
Acoustics of Chinese Bronze Bells - CH
Ting
"Since I got my audio recorder and FFT working, I revisited my work
on Chinese Bronze bells. With an FFT I can accurately determine the base
frequencies of my bell. I will bring in my bell, which is very heavy - about
100 lb. You can all hit it and listen to the sound."
- Slides
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11:30 |
Lunch
We enjoyed lunch at
The Treehouse. |
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13:30 |
Introductions, Rumors, and Gossip |
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13:47 |
Connecting Forth to the World - Brad
Nelson
"I'll describe my journey migrating flagxor.com from AppEngine to a Google Cloud
server running Nginx and Forth. Along the way I'll discuss ways to plug Forth
into Linux syscalls, processes, forking, pipes, semaphores, and sockets. We'll
learn about SCGI, certbot, Let's Encrypt, and more."
- Slides
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14:58 |
Break |
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15:00 |
An Alternative Approach to Literate Programming -
Samuel A. Falvo II
"I wrote a literate programming tool in Forth, but
it's not Knuth-style literate programming."
- Slides
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16:00 |
Clean Up and Adjourn |
Other items:
- Forth
- Forth for MSP430
- Forth Tutorials
- Forth CPUs
- Forth Articles and Blogs
- Forthwrite
Articles
- Forth - The
New Synthesis
- Forth Programming Books
- Forth Jobs - submitted by Dennis Ruffer
- Other Jobs
- Green
Arrays
- Forth People
- Products in Forth
- Misc Forth Stuff
- Kestrel-3
Fossil Repository
- Forth Standard
- [IF]
- Computers
- Build Your Own
Microcontroller Projects
- Z80
Microprocessor Kit
- Chips
- Components
- Software Applications
- Space Applications
- Space stuff
- Programming Languages other than Forth
- Operating Systems
- Utilities
- Hardware
- Other Books
- Manuals & Documentation
- Articles
- Files are
fraught with peril
- Applications
- Stores
- Robots
- Games
- Companies
- Lectures
- People
- Surplus Houses
- Meetings
- Videos
- Electric Fence
Controller Teardown (19:43)
- Academy of Lock
Picking Arts - 12/2019 SVFIG Presentation
- Courses
- Trade Shows
- Podcasts
- Personal Computer History
- Retro Computing
- Tutorials
- Education
- Contests
- Blogs
- Other
- Check-in
Differences
- Academy of
Lock Picking Arts - Curriculum
- “A
Lock Picking Lesson for the Curious” - With Bill Ragsdale
- AIDS Treatment
News - John S. James, Editor and Publisher
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