Electronics · python · raspberry pi

[FIXED!!!] Turn on a lamp with a gesture – Image Processing! Machine learning!

Source: http://makezine.com/projects/raspberry-pi-potter-wand/ Make has a write-up on wand-control with a simple reflective wand… …it *was* broken.  Fixed it. Back in January when I first read the article I was so excited to try it, I ordered a bunch of parts, downloaded the Git, and then figured out it didn’t work. Not to worry though.  A fellow named… Continue reading [FIXED!!!] Turn on a lamp with a gesture – Image Processing! Machine learning!

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)

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

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)

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