230V Air Conditioner and HomeKit, part 8: Power Cords

Did you read part 7 yet? If you thought to yourself "I don't need to read part 7" that means you need to read part 7. (The exception is if you're a licensed electrician, of course.) Now I've reached the stage that Goldy is dreading: Working with power cords. The point of this project was to use…

Continue Reading230V Air Conditioner and HomeKit, part 8: Power Cords

230V Air Conditioner and HomeKit, part 7: Electrocuting Goldfish

In my previous post in this saga, I'd just reached the point when I start talking about power cords. Before I go any further, we have to deal with some practical stuff. Starting with my next post on this project, I'm going to describe how I worked with wires that carry household current. These lines carry 120V…

Continue Reading230V Air Conditioner and HomeKit, part 7: Electrocuting Goldfish

230V Air Conditioner and HomeKit, part 6: Solid-State Relays

In the last part of this overly-extended saga, I described how I got a Raspberry Pi to send signals to the pins on its circuit board. The next step is to get the signal from those pins to control the flow of electricity through a 240V power cord. I found several posts on the web (here's one)…

Continue Reading230V Air Conditioner and HomeKit, part 6: Solid-State Relays

Wizard’s Staff

Like many folks, I have that box in my closet filled with cables that I keep "just in case." Today I decided to go through that box and toss out the stuff that I knew was obsolete or that I'd never use again. Sure, there was the usual batch of BNC cables and excess power cords. But…

Continue ReadingWizard’s Staff

230V Air Conditioner and HomeKit, part 5: GPIO

In part 3 of project blog, I described setting up a Raspberry Pi. In part 4 I went over how I installed Homebridge on the RPi so that it could communicate with Apple's Homekit. Everything I described in those two parts did not require a Raspberry Pi; I could have done it on my desktop Mac. Now…

Continue Reading230V Air Conditioner and HomeKit, part 5: GPIO

230V Air Conditioner and HomeKit, part 4: HomeKit

In my previous post on this project, I described my initial set-up of my Raspberry Pi. The next step was to interface the RPi (see how nonchalant I've become?) to HomeKit, Apple's mechanism for home automation. There's already software for this written by the RPi user community: Homebridge. Homebridge depends on another package, Node.js, which I see…

Continue Reading230V Air Conditioner and HomeKit, part 4: HomeKit

NieR: Automata

About a year ago, I joked that from now on, all console games that I played must have a colon in their name, because the ones I played with a colon were more fun. Then I played God of War, which I enjoyed despite its lack of a colon. Now I come to NieR: Automata. I purchased…

Continue ReadingNieR: Automata

230V Air Conditioner and HomeKit, part 3: Raspberry Pi

Warning: For the rest of this series of blog posts about this project, I'm going to take a "golly gee-whiz" approach. If you're an experienced Maker, computer programmer, electrician, or human being you may be bored by them. However, please feel free to read on and (a) laugh at my ignorance, and/or (b) warn me that I'm…

Continue Reading230V Air Conditioner and HomeKit, part 3: Raspberry Pi

230V Air Conditioner and HomeKit, part 2: The Air Conditioning

In what turned to be Part One of an adventure in the Internet of Things, I talked about wanting to control my air conditioner via Apple's Homekit. One option I contemplated was replacing my existing air conditioner. To get some idea of what it would take, I removed the front cover, which I've done every mumblety-mumble years…

Continue Reading230V Air Conditioner and HomeKit, part 2: The Air Conditioning