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

Electronics · nodejs · raspberry pi

Raspberry PI3 NodeJS GPIO Control: rpi-gpio

I’ve covered this in several other articles as a side effect of getting those higher level goals complete.  But given a simple Google Search failed me…  here is this in case someone else needs it. When you just want: “Raspberry PI3 NodeJS GPIO Control” – this is how you get it done: npm install –save… Continue reading Raspberry PI3 NodeJS GPIO Control: rpi-gpio

Electronics · python · raspberry pi

Raspberry PI Controlling Power through GPIO (no wifi needed)

Digital Logger’s IOT Logic Outlets In my previous two articles – we show two ways the Raspberry Pi can control power through Wifi: Raspberry PI for controlling TP-Link POWER Raspberry PI for Controlling Wemo Power These assume wifi-enabled outlets, which are great, but there are some cases where you really want the Raspberry PI to… Continue reading Raspberry PI Controlling Power through GPIO (no wifi needed)

Electronics · raspberry pi

Tying it all together! Wand > LIRC > Socket > Forever > Outlet

Image source: http://weknowyourdreams.com/single/magic/magic-03 By now we’ve figured out lots of fun chunks of code.  All inspired by the idea of a wand controlling your home.  When I say by now, I’m referring to the previous articles: Listening to remote (the wand) Keeping the listener alive.. forever Talking to an tplink outlet or talking to a wemo outlet The… Continue reading Tying it all together! Wand > LIRC > Socket > Forever > Outlet

Electronics · raspberry pi

Raspberry PI – Run on boot, and run forever! Systemd/Systemctl

The raspberry pi is a cheap linux box you can have plugged in all the time, and they’ll just crank away until the flash wears out… which is likely to be never. Start stuff on boot One of the few things that can get in your way:  power dropping out and causing these little guys to… Continue reading Raspberry PI – Run on boot, and run forever! Systemd/Systemctl

Electronics · raspberry pi

Raspberry PI for Controlling Wemo Power

The previous article: TP-Link POWER covered TP-link devices.  They’ve become a little difficult to get ahold of this holiday season, but Wemo devices by Belkin are all over the place. WEMO Switch Outlet So, I took a little time to figure out how to automate those little puppies. Its pretty simple, once you track down… Continue reading Raspberry PI for Controlling Wemo Power

Electronics · raspberry pi

Raspberry PI for controlling TP-Link POWER

The TP-Link HS100 has a nifty little library that allows devices on the same network to control them using a tiny amount of code.  This article assumes you know how to setup a raspberry pi, and that you have access to its linux terminal, either through SSH or locally via a keyboard and mouse. The… Continue reading Raspberry PI for controlling TP-Link POWER

Electronics · Websites

Raspberry Pi – Control by Magic Wand!

So a friend at work just pointed me to this awesome bit of tech called the Kymera Wand which is also available as Sonic Screwdriver.  Basically it is a Universal Remote, hidden in a wand, and controlled by gesture! It’s really quite awesome. Controlling a TV with a flick of the wrist is something magical, but… Continue reading Raspberry Pi – Control by Magic Wand!