Responding to the latest thing Trump did

I’ve been following the Trump soap opera lately and a few things have been getting under my skin.

1- Trump tweeting is not policy. When he is sharing his views on who can serve in the military he is deftly changing the discussion away from the areas he does not want people to focus on. I feel like the social media universe is Pavlov’s dog.  

2. Facts don’t seem to matter to people.  Whether it is the financial cost that he is claiming or the ‘leaked’ financial records of Scaramucci (his financial disclosure was freely available – little thing called transparency) I am amazed at how people accept whatever they view or read without a little independent research to verify the information. One area I cover in the library is how to differentiate facts from opinions, the world needs more education in this area.

3. Civility – when reading about Trump, Trudeau or Wynne you would think that you were back in the middle ages as part of a mob. I do love Michelle Obama’s statement – when they go low I go high. By all means disagree with our political leaders but back up your opinions with facts and be respectful.

4. Discrimination is not ok. Ever. Skin colour, religion, sexuality – why can’t we respect our differences? Is is simplistic to project our views on an entire community.

Thanks for letting me rant.

Line Tracking with Arduino

I ordered a number of infrared line trackers for my class in September.  At 33 cents per sensor the price was awesome:

https://www.aliexpress.com/snapshot/0.html?spm=a2g0s.9042647.0.0.06In4n&orderId=83957816201947&productId=32672744833

First things first I checked out the datasheet for them.  Since I’m travelling I don’t have any resistors but based on the voltages I should be fine for a short test.  Time to wire it up.

Wired up line tracker
Yellow is out on sensor to A0 on Arduino.
Red is VCC on sensor to 5V on Ardunio.
Black is Gnd

For the code the AnalogReadSerial example is all I need to test it out.  The sensor worked great – when a dark object (i.e. phone case) was 1 cm away it was receiving a value of 0.  When white paper was held 1 cm away a value of 1007 was received.

 

Next Stage:

One of the tasks that my students will be required to complete is to build a variety of line following robots – from the simple (i.e. turn left if on black, turn right if on white) to the complex (PID – proportional integral derivative).

Resources

PID tutorial

PID Line follower

Using IR Sensor

Line Follower

Infrared line tracker
Infrared line tracker

Book: Worlds of Ink and Shadow

Worlds of Ink and Shadow by Lena Coakley was a White Pine award nominee this year. What a fantastic book. The plot centres around the Bronte children, it does an amazing job of mixing real information about them as it delves into a story that will intrigue many readers. It opens doors into fantasy world for readers.

I highly recommend this to any avid readers.