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Category: Blog

Mpow fitness tracker

I recently tried to improve my fitness levels. I decided to pick some simple options that required little in the way of equipment: swimming and jogging. After a while, I wanted to better track my activities and started looking at what gadgets were available. My requirements were simple and cheap (less than £50), ideally tracking heart rate as well as steps. Waterproof would be nice to have so I could swim with it too.

C25k Diary (Part 2)

To recap, I tried to complete the Couch to 5k programme because I wanted to get fitter, but I was (am) pretty unfit when I started and came across a few challenges by week three. We return as I started on week 4.

Long story short, I blazed through week four. By being conservative with week three, I was ready for a slightly harder run.

I was on a roll and just knew I’d be fine for week 5.

Solo

I don’t normally read “franchise” books. I’ve avoided Star Wars, Star Trek and Doctor Who spin-offs but thought I’d try “Solo” featuring James Bond, mostly as as it was written by William Boyd who is one of my favourite authors.

It was a quick read, some nice twists. It has more gruesome violence than you get in the movies, which surprised me. Fleming purists may argue that it’s not the Bond of the books, but nothing offended me.

C25k Diary

As it’s the New Year and many people are thinking about reviewing their exercise regime, I thought this might be a good time to write about my experience with Couch to 5K (C25K), a well-known programme for training anyone to be able to run five kilometres.

I should point out that this isn’t a real-time diary. I started it late last year and, as I write this, I have not yet completed a full 5km run. But — spoiler alert — I’m still making progress. There have been a few bumps on the way which, I think, is what makes this worth writing about.

Reading 2017

This is the time when people write lists about the past year and the year coming. Why have original content when you can have listicles? And why should I be the one to miss out? So here, just as I did last year, are a few notes about most of the books I read.

I’m a big fan of the Marvel Cinematic Universe and offshoots like their Netflix TV shows, but I’ve never really read the original comic books. I thought I should change that.

Send in the clones!

So here’s the thing that drives me crazy.

Having had a hard disk die on me a few years ago, I’m a little paranoid about backups. I have three:

  1. Time Machine, over WiFi to a Synology NAS
  2. Backblaze, “cloud” backup over the internet
  3. SuperDuper clone to an infrequently connected USB hard disk

Time Machine and Backblaze run all the time, nice, seamless and hopefully pretty complete. I do the SuperDuper clone occasionally and every few months I try to reboot and check that the clone actually works.

Earth Day Cynicism (Not mine)

Earth Day bugs me.

Okay, not Earth Day itself. The idea of respecting and preserving the world is difficult to argue with. No, what annoys me is all the big corporates jumping on the bandwagon just to be seen to be there.

These companies do, effectively, nothing, or at least nothing actually useful, just to say that they’re supporting Earth Day. It’s worth talking about a couple of examples.

My employer had committed to turn off the lights that illuminate the logos on all its buildings for our lunch hour. They also suggest that we turn off unnecessary computers and other equipment for the same time. They generously suggest that home workers to do the same.

Otto: Assembly

With all the pieces printed or purchased, it was time to assemble Otto.

Since I’d already tested the Arduino and enlarged the holes for the eyes and stepper motors, the process of putting it together was actually fairly uneventful.

[![](https://i0.wp.com/www.zx81.org.uk/wp-content/uploads/2017/03/IMG_4014.jpg?resize=300%2C225&ssl=1)](https://www.zx81.org.uk/blog/otto-assembly.html/attachment/img_4014)
Putting Otto together

Because of the small size, some parts were very fiddly but it wasn’t hard per se. Kudos to the people who put the instructions together!

I came across three minor problems.

Otto: Electronics

The first stage of building a dancing, obstacle avoiding robot was to build the body and legs using my 3D printer. The second was to test the electronics before assembly. This would prove to be more eventful than the printing.

I was least sure about all the electronics. They components arrived and… they sure looked okay. I didn’t think the buzzer looked quite right — it looked too big, but I figured that it even if a little lose it should make something approaching a buzzing noise.