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10:00 |
Hacking Farmer's Markets - Mitch Bradley
"By
frequenting local Farmer's Markets and talking to the vendors, I have
discovered a lot of need for small-scale automation. I'll show a collection of
gadgets made from low-cost microprocessors, motors, sensors, and hardware store
parts, with simple programming in Forth, that are a great help to small farmers
and food producers."
- Projects:
- low cost coffee bean huller
- press brake for bending sheet metal
- climate control for telescope
- keg washer
- electric bottle capper
- Links:
- Slides
- Video - 54:17
- Mitch
Bradley's cforth on GitHub - gerbel_esp32
- ESP32-DevKitC
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11:00 |
Forth Challenge - Compute Pi by Your Favorite Method -
Bill Ragsdale
This month there will be another Forth Challenge. This
is not a contest, just a Show and Tell.
Compute Pi by your favorite method(s). Consider:
- Integer to your stack width,
- Floating point to your processor’s limit,
- Integer beyond your stack width
- Taking up the Challenge:
- Joe O'Connor -
- Charles Curly - Fast Forth on Atari
- Brad Nelson -
Bailey
Borwein Plouffe Method
- Strick - Estimating Pi in
Forth - Github
- Dave Jaffe - Integer Pi
Ratio
- Dave Henderson - Abusing the Mandelbrot Set to Compute
Pi
- Joel Shprentz - Spigot Algorithm -
code - slides
- Bill Ragsdale - Three Computations of Pi
- Video - 1:14:00
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