John Deere Z355R Sputtering
Start of a new season and time to service the lawn mower. https://www.deere.com/en/parts-and-service/zero-turn-mowers/residential-eztrak/z355r/ The annual service kit comes with Oil,…
Cozmo Maze
The maze in the picture was a leftover from another project. What better use to put it to than have…
Chromebook Pixel 2013 and Cozmo
The examples and SDK for working with Cozmo are Python based. https://github.com/anki/cozmo-python-sdk/tree/master/examples/tutorials We have a couple of Google Chromebooks,…
Getting started with Cozmo
Cozmo is a little toy robot with a python SDK. The setup is a little quirky, but nevertheless fun.…
Printing in Python 2.7 versus Python 3
In Python 2, it is a special statement and Python 3, print is a function. Python print “tj” The output…
Electrical Applications, quiz 0001
Look at the following circuits. What will happen when the switch is turned on: Simple LED, resistor and battery 2.…
Electrical Applications, Components, Values and Units
Resistors https://en.wikipedia.org/wiki/Resistor Resistors are measured in Ohms Ω. They are used to limit the current that flows through the…
Electrical Applications, Resistor Color Code
How do you identify a resistors value if you don’t have a multimeter available? Each resistor has a band of…
Electrical Applications, 555 Timer
The 555 is our first steps into chips. The 555 is a timer chip, this means that it will ‘tick’…
Electrical Applications, Potentiometer
A Potentiometer (pot) is a resistor that can be both fixed and varied, also known as variable resistors. A typical…