Watch “So how does a PS/2 keyboard interface work?” on YouTube

Posted on March 13, 2021 by dkohn96

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Breaking Into a Smart Home With A Laser

Posted on March 12, 2021 by dkohn96
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TCA9548A I2C Multiplexer

Posted on March 11, 2021 by dkohn96

You just found the perfect I2C sensor, and you want to wire up two or three or more of them to your Arduino when you realize “Uh oh, this chip has a fixed I2C address, and from what I know about I2C, you cannot have two devices with the same address on the same SDA/SCL pins!” Are you out of luck? You would be, if you didn’t have this ultra-cool TCA9548A 1-to-8 I2C multiplexer!

Link to Part

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Mate Robot Competition

Posted on March 5, 2021 by dkohn96

Mate Underwater Robotics Competition

It’s official!  The West TN STEM Hub will host the MATE Mid-South Regional ROV Competition in May 2021!  The competition is open to elementary-high school students, and no robotics experience is required.  We will host a kickoff meeting for interested teams this Friday, March 5 at 4 pm.  The session will be recorded and posted to our YouTube channel for schools that are interested but unable to send a representative to the virtual meeting on Friday. 

CLICK HERE to access meeting

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100Mbps uploads and downloads should be US broadband standard, senators say | Ars Technica

Posted on March 5, 2021 by dkohn96

https://arstechnica.com/tech-policy/2021/03/100mbps-uploads-and-downloads-should-be-us-broadband-standard-senators-say/

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6 Clever Ways to Use the Windows Command Prompt | WIRED

Posted on February 23, 2021 by dkohn96

https://www.wired.com/story/6-windows-command-prompt-clever-tips/

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The Unparalleled Genius of John von Neumann

Posted on February 23, 2021 by dkohn96

https://medium.com/cantors-paradise/the-unparalleled-genius-of-john-von-neumann-791bb9f42a2d

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Perseverance Rover’s Descent and Touchdown on Mars (Official NASA Video)

Posted on February 22, 2021 by dkohn96

This is so neat! They got video of the Perseverance Rover landing on Mars…..

Full News Conference:

Also check out all the pictures coming back at: https://mars.nasa.gov/mars2020/multimedia/images/ and https://mars.nasa.gov/mars2020/multimedia/raw-images/

Oh, just heard the rover’s cameras are running off of an Intel Commercial Computer running LINUX….first open source software on MARS!

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Amtrak service cut could affect Scouts going to Philmont Ranch

Posted on February 21, 2021 by dkohn96

From The Albuquerque Journal

If you have ever been to Philmont Scout Ranch like I have (three times: 1993, 1994, 1995), the story about an Amtrak change that will affect the Ranch (and those Scouts and Leaders going to it) is worth noting.

https://www.abqjournal.com/2360826/amtrak-service-cut-to-3-times-a-week-affecting-philmont-ranch-ex-countrys-largest-training-center-for-boy-scouts-relies-on-the-trains-to-fill-ranch.html

For more of my adventures at Philmont, Check out http://dankohn.info/~trail96/philmont/

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Earth’s Magnetic Field Flipped 42,000 Years Ago. The Consequences Were Dramatic

Posted on February 19, 2021 by dkohn96

https://www.sciencealert.com/earth-s-magnetic-field-flipped-42-000-years-ago-with-dramatic-consequences

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