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» Cemetech Contest #13: "Games with Cats & Space"
» Geekboy1011 Promoted; Cemetech Contest #13 Soon
» Projects of the Month: October 2014
» ArTICL: Arduino TI Calculator Linking Library
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Cemetech Contest #13: "Games with Cats & Space"
Published by elfprince13 on November 25, 2014 at 11:47:08 PM CST | Discuss this article (5)
Another fun-filled Cemetech contest starts today! Running for about four weeks, this contest has a few unique requirements intended to exercise your creativity. For Cemetech Contest #13, you must create a game that (somehow) incorporates two elements: cats and space. It will be up to you, the contestant, to determine how best to integrate these two thematic elements within the creative fabric of your game. This contest will run through December 20th, 2014, and covers almost all of the calculators and languages with which you may enjoy programming:
So what are you waiting for? Getting coding, make a fun game, challenge yourself to learn something new in the process, and win some calculators!
Contest #13 Rubric
Contest #13 Rules
Two of the remaining four of these six generously-donated calculators will be awarded as prizes, with the remainder awarded for another upcoming contest. A special thanks to our anonymous donor for making this contest possible!
Geekboy1011 Promoted; Cemetech Contest #13 Soon
Published by KermMartian on November 11, 2014 at 5:18:38 PM CST | Discuss this article (17)
Over the years, Cemetech has worked hard to recruit to the Cemetech staff individuals who have combined exemplary leadership in the community with superior programming and teaching skills. As our members and staff grow and mature, people's ability to dedicate time to the site necessarily changes, so we occasionally need to bring up some fresh blood to help us with the many day-to-day tasks that keep the community running. Over the last several years, Tim "Geekboy1011" Keller has acted as an Omnimaga administrator/owner, participated in Cemetech's efforts to show off Calculator Programming and Hacking at Maker Faire, been a driving force behind our weekly Have Calc, Will Program teleconference, worked on many excellent assembly projects, and been a great friend to boot. We are very happy to introduce Geekboy1011 as our new Community Liason and z80 Assembly Moderator. In the coming months, you will likely see Geekboy1011 taking on additional responsibilities at Cemetech. I hope you'll join me in welcoming Geekboy1011 officially to the Cemetech staff!
In other news, we have been discussing the topic for Cemetech Contest #13, and we hope to announce the contest officially soon. Although we don't have a final topic to present yet, we can say that the contest will be open to TI-83 Plus/TI-84 Plus/TI-84 Plus C Silver Edition (BASIC/Axe/ASM), TI-Nspire (Lua), and possibly Casio Prizm (C/BASIC) programmers. The prizes will include at least one TI-84 Plus C Silver Edition and one TI-Nspire CX donated by our generous anonymous benefactor, and will probably be supplemented further. The contest will likely run from next week until the end of December, and we're looking forward to having a particularly competitive field this year. If you have any ideas for contest topics beyond what has recently been discussed, please feel free to let us know.
Projects of the Month: October 2014
Published by KermMartian on November 1, 2014 at 2:31:41 AM CST | Discuss this article (3)
Hello again, Cemetechians, and slightly delayed Halloween wishes to you! This past month continued last month's trend of activity and excitement around projects, from our educational STEM-related programs to games and hardware projects. We strongly encourage you to check out items that interest you and post in the relevant topics with ideas, suggestions, or feedback for the authors. Without further ado, October's projects:
ArTICL: Arduino TI Calculator Linking Library
Published by KermMartian on October 30, 2014 at 11:45:15 PM CST | Discuss this article (11)
In early 2010, we published a set of rudimentary routines to link graphing calculators to Arduino boards. In the intervening four years, a number of developers have given me feedback on the routines, including features that they'd like to see and improvements that could be made. Those improvements have made their way into a new library called ArTICL (Arduino-TI Calculator Linking). Like any good Arduino library, it contains a set of classes you can use in your own Arduino programs, plus a handful examples made by yours truly and other Cemetech members. We plan to continue to expand the library and eventually create one or more lesson plans that teachers could use to teach rudimentary electronics and programming with TI-83 Plus or TI-84 Plus calculators and Arduinos.
The ArTICL library (pronounced "article") lets Arduino programs send and receive TI link protocol-formatted packets at a low level. In addition, it includes a CBL2 class that lets the calculator emulate either a CBL2 device or a calculator speaking the CBL2 protocol (thanks to Cemetech member CVSoft for helping to make this possible). This means that you can use the Send() and Get() commands on your graphing calculator to control the Arduino, including turning LEDs and motors on and off, reading the state of buttons and switches, and performing measurements with sensors. You could even use the ArTICL library to control a Norland Research robot with an Arduino. The attached topic will be updated as the library progresses. In the meantime, check out the video below demonstrating toggling LEDs on and off with the Send() command on a calculator, and feel free to contribute to ArTICL by sending a pull request on GitHub.
ArTICL library on GitHub
ArTICL LED control demo video
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