lessons · raspberry pi · Websites

Lessons on PI – Lesson 3: Getting around (ls, cd, rm, mkdir, touch, pwd, less…)

The Linux operating system and specifically the terminal, can feel like a maze when trying to find your way around.  If you haven’t yet, check out Lesson 1, and Lesson 2. The file and directory File There are a couple of concepts you will have to hold in your head as you get started.  The… Continue reading Lessons on PI – Lesson 3: Getting around (ls, cd, rm, mkdir, touch, pwd, less…)

lessons · python · raspberry pi

Lessons on PI – Lesson 2: On the shoulders of giants (apt-get, and git)

On the Shoulders of Giants That phrase, “On the shoulders of giants”, has come to mean, “discovering truth by building on previous discoveries” which just about sums up all of computer science. That idea, is the reason Computers are moving so fast!  When you can reuse the work being done by hundreds of thousands of people… Continue reading Lessons on PI – Lesson 2: On the shoulders of giants (apt-get, and git)

Electronics

Kid-Friendly Electronics Teaching Supplies

Wago 222-Series Electronics typically means soldering.  Soldering means highly stressful training using soldering irons with parental-hands hovering inches from child-hands.  Cords everywhere for soldering irons, lead free solder, fume extraction.  All of which is mostly impossible with any size group. Turns out we live in a fairly modern time. We can connect wires with tiny… Continue reading Kid-Friendly Electronics Teaching Supplies

arduino · Electronics · raspberry pi

Low-voltage device control with Raspberry PI (Solenoids, Pumps, Motors)

The power of controlling power… Interacting with the outside world is one of the most exciting aspects of programming RaspberryPIs and Arduinos.  Whether you want to turn on a motor, control an air pump or activate a solenoid – all of these require using the tiny amounts of current from your pins as switches to… Continue reading Low-voltage device control with Raspberry PI (Solenoids, Pumps, Motors)

lessons · raspberry pi

Lessons on PI – Lesson 1: The Raspberry PI

This is the first in a series of raspberry pi classes.  When the kids first show up with their hardware they need to immediately get it up and running by understanding the various bits. What is it? “The Raspberry Pi is a credit-card-sized computer that plugs into your TV and a keyboard. It is a capable… Continue reading Lessons on PI – Lesson 1: The Raspberry PI

arduino · Electronics · raspberry pi

Servo Triggers – Quickest, Fastest, Easiest way to make your servos dance

What’s a Servo? Servos are a fundamental building block of all mad-scientist laboratories.  These little guys will magically move to a position of your choosing, and stay there. As stated by Servo City: As long as the coded signal exists on the input line, the servo will maintain the angular position of the shaft. …… Continue reading Servo Triggers – Quickest, Fastest, Easiest way to make your servos dance

Electronics · nodejs · raspberry pi

The complete guide to enabling speech recognition on an RPI3… in NodeJS

One of the things a good magic wand should do is respond to magic incantations. This guide will take you through getting Google Cloud Speech APIs functioning on your Raspberry PI 3 so that you can trigger speech recognition through a button press on your magic wand. The Microphone… Before you can get speech… you… Continue reading The complete guide to enabling speech recognition on an RPI3… in NodeJS