Kumo Connect: from Automated Desktop and Backyard Gardens to Automated Everything

photo hutI ran into a guy at Maker Faire Kansas City who I used to scoop ice cream with twenty years ago. We were slinging frozen dairy at a Baskin Robbins in a dying suburban strip mall that had a one-hour photo booth in the parking lot. It was just far enough away from our doorstep that dotting its backside with the hard-frozen ice cream balls that had been scooped and then not always accidentally dropped into the depths of the freezer was challenging. This guy, [Blake], kept a hockey stick hidden in the back room especially for this purpose. I never could get them to fly that far, but he was pretty good at it.

I hadn’t seen him since those days, and there he was manning a booth at Maker Faire. He looked quite professional, showing no hint of the mischief from those days of ice cream hockey. His booth’s main attraction was Niwa, a connected indoor garden. Having spent four years living and working in Japan after college, [Blake] did not choose this name arbitrarily: ‘niwa’ is Japanese for ‘garden’. He loves Hackaday and was more than happy to share his story.

Niwa and gnome

Connecting with Nature

[Blake] is an avid gardener, but his wife does not share this passion. A few years ago, he took a new job that required travel on an almost weekly basis, which meant big trouble for his plants. Unfortunately, he couldn’t find what he wanted to ensure they were taken care of. You know what comes next: he decided he would design his own system. However, he had no experience with electronics.

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Raspi AC and Blinds Controller

raspiBlindsACController

[Chris's] bedroom has a unique setup with an air conditioning unit perched on the wall next to the top of the blinds that cover his window. Normally, to open the blinds he had to tug on a cord and operating the AC meant fiddling with a remote control. Not anymore. Now [Chris] has an all-in-one Raspberry Pi-based solution to drive both.

The build uses a stepper motor salvaged from a printer to directly drive the blinds, with a familiar-looking Easy Driver connecting it to the Pi. The motor spins the blinds’ mechanism either open or closed, though at a modest pace that’s slow enough to provide the needed torque. [Chris] added an IR diode plugged into the Pi that imitates the air conditioning unit’s remote control, and simply pointed it directly at the unit’s receiver. An inexpensive WiFi dongle gets the Pi onto the network, allowing [Chris] to interact via a custom web interface. The interface itself not only provides a couple of clickable buttons, but a cleverly-designed status image indicating the position of the blinds.

Make sure you see the video below for a demonstration and for more details on the build. This is one of the better examples of home automation devices we’ve seen recently, especially considering it actually fits the “autonomous” implications discussed in our Ask Hackaday post from a few months back—although a relatively simple automation, [Chris's] interface does allow for operating both the blinds and the AC on a preselected schedule.

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Raspberry Pi Garage Door Automation

garage door automation

Like many of us, [Felix] sometimes wonders if he actually closed the garage door. I know I’m always double-checking my car locks! So, he decided to automate his garage door to give him some peace of mind!

He’s been working on a pretty big Raspberry Pi home automation series, and in this final segment he shows off his new GarageMote board which, as you can guess, lets him wirelessly control the door. It’s a very simple board complete with a small relay, a diode, and 2 resistors. The 8 pin header provides connection to two hall effect sensors that detect the status of the garage door, and the original door opener. He then connects this to an open-source wireless Arduino clone of his own design, dubbed the Moteino. A pair of these communicate to the Raspberry Pi which acts as his secure home automation gateway server.

The whole project is extremely slick, and very well documented – so if you’re looking at automating your home, [Felix] has a wealth of knowledge to share — well at least if you want to use is Raspberry Pi!

Stick around after the break to see the web-server controlled garage door in action.

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