Category Archives: Computing

Changing the RFXmeter base address

Posted on December 1, 2021 by james

This morning I overcame the first obstacle on the way to rebuilding my power monitoring system. I have two RFXmeter units sending data to the receiver which is plugged into a Linux machine on which I’m running rfxcom-rx from the … Continue reading →

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Power monitoring revisited

Posted on December 1, 2021 by james

A few years back I used to have a load of power monitoring stuff hooked up to the house electricity supply, but then we had a lot of electrical work done and it had to be removed. I didn’t get … Continue reading →

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Zombie Pi

Posted on December 1, 2021 by james

Good news! It seems my Raspberry Pi isn’t dead after all, though the problem is a little odd. I ordered some new SD cards so I had some spares, and out of interest put a new copy of Raspbian on … Continue reading →

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Model 1 Raspberry Pi bites the dust

Posted on November 29, 2021 by james

My first ever Raspberry Pi has died 🙁 It’s been out with the weather sensors in my Stevenson screen for at least a year, but we had a power outage a short while ago and it wouldn’t reboot. I brought … Continue reading →

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New HP printer admin login failure

Posted on August 19, 2021 by james

I’ve just bought an LP laser printer (a 179 MFP), having got fed up of paying far too much for inkjet ink. The printer arrived yesterday and today I set it up and plugged it in. At one point during … Continue reading →

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OWFS on a Raspberry Pi

Posted on January 29, 2020 by james

I have an old Raspberry in my Stevenson screen and I’d quite like to hook it up to my 1-wire weather sensors rather than running the 1-wire connection into the observatory to my desktop system there. OWFS looks like it … Continue reading →

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Powering a Raspberry Pi from a 12V supply

Posted on January 16, 2020 by james

My Stevenson screen has a 12V supply to it for powering the 1-wire hub that has all my weather sensors attached to it. At the moment the main 1-wire connection runs back to the PC in the observatory warm room, … Continue reading →

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Geeking out

Posted on January 15, 2020 by james

I’ve put quite a bit of time into oacapture and oalive this year and hopefully they’re the better for it, with a new release coming soon. Github demonstrates the depth of my efforts:

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Missing icons in Kstars and Ekos

Posted on August 29, 2019 by james

After installing Kstars and friends on my Mint 19 desktop from the launchpad PPA, I discovered that none of the buttons in the application had icons. Some were blank, whilst others had text overlaying them. I only actually realised this … Continue reading →

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Success with libgphoto2!

Posted on August 29, 2019 by james

Since the last release of oacapture I’ve mostly been working on oalive, an EAA-type application that will share a large amount of code with oacapture. One of the new things I wanted to do with this was to add support … Continue reading →

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