Electronics · kids · lessons · python · raspberry pi

Lessons on PI – Lesson 4: The Sense Hat (and a little VIM)

The Sense Hat What’s a hat? Hats are the term that the Raspberry PI community uses to identify bits of hardware that are made to plug into the Raspberry Pi’s GPIOs (General Purpose IO) – that row of pins along one side of your pi.  There are lots of these out there to make interacting with… Continue reading Lessons on PI – Lesson 4: The Sense Hat (and a little VIM)

Bitcoin · kids

Bitcoin and the Modern Family

Digital Currency is inevitable… It’s too perfect (or it will be after a bit more scaling work.)  It works everywhere on the globe, the government can’t freeze it or de-value it, credit card agencies don’t have to insure it, and it’s guaranteed to be a limited resource. It’s coming… so you should probably teach your… Continue reading Bitcoin and the Modern Family

Electronics · nodejs · raspberry pi

Controlling Servos from your PI (No extra hardware needed) using NodeJS

For a little servo background… See my article on the servo-trigger: Servo Triggers – Quickest, Fastest, Easiest way to make your servos dance To install node… See my NodeJS installation article: Installing NodeJS on a Raspberry PI Then… a little something on PWM Ok, a little background:  Controlling servos works by using something called PWM or Pulse Width… Continue reading Controlling Servos from your PI (No extra hardware needed) using NodeJS

nodejs · raspberry pi

Installing NodeJS on a Raspberry PI

There are two ways… The easiest is to install using the package manager.  Recently though I ran into an issue where the folks providing the package manager version forgot to include the ARMv6 build. If that’s the case while you attempt, move onto the tarball method and you’ll be up and running in no time.… Continue reading Installing NodeJS on a Raspberry PI

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