Blog articles tagged circuits


Boat (27) 
Not the Boat (12) 


Recent articles

25 Apr 2017

Ubuntu 16.10 LXC host on ZFS Root, with EFI and Time Machine

Still completely unrelated to boats, but I needed somewhere to put this. Here is a blow-by-blow guide to installing a minimal Ubuntu 16.10 to a ZFS root, booted from EFI, which as used as a LXC host to act as an Apple "Time Machine" destination.
mike 25 Apr 2017 at 17:20
14 Mar 2017

How to connect any serial device to the internet

A completely generic script that will proxy serial devices over HTTP, turning USB-things into internet-things.
mike 14 Mar 2017 at 23:00
08 Aug 2016

Simple DIY Super-Capacitor UPS

In which the author describes the ad-hoc manufacture of a small device with no supporting calculations and parts sourced from an unknown supply chain, charging it with enough electrical power to start a good size fire and then walking away, congratulating himself that he has come in under budget.
mike 08 Aug 2016 at 17:30
26 May 2016

The Engine

The setup of the Yamaha F9.9 engine - I replaced the Yamaha 703 control box with a flush mounted equivalent and some custom electronics, and linked the engine to the tiller (and a rudder angle sensor for good measure)
mike 26 May 2016 at 16:25
29 Jan 2016

Electrics, part 2 of ∞

Power switching I've had this installed for about a year now and it's working very well, so I'm finally prepared to go public - while there are a few changes I would make, the system works. I've previously outlined the broad design goals. This one will focus on the implementation. I wanted every circuit to be switchable manually or from a computer, and to be able...
mike 29 Jan 2016 at 12:06
17 Oct 2014

Let There Be Lights!

I have lights! A good thing too because it's suddenly very dark outside, and worse inside the boat. I've been tinkering with this one for a while and I'm pleased enough with the latest design to go public with them. Here's what I've got: 1 x strip of 5050 warm-white LEDs from eBay - go for the "300 leds/m" variety, you want as many as possible. A 5m st...
mike 17 Oct 2014 at 16:40
27 Aug 2013

LittleUSB - a LittleBits/USB interface

A circuit to integrate LittleBits with your computer via USB
mike 27 Aug 2013 at 14:00
15 Apr 2013

How to solder SMT component by hand

Hand-soldering SMD boards A quick note on how I'm doing this. SMT parts are pretty daunting to solder although there are plenty of people on the net that will tell you it's way easier than through-hole. After a dozen or so of these I think the truth is somewhere in between. The image on the right has rollovers showing my setup - I made quite a few false starts but now I'm getting pre...
mike 15 Apr 2013 at 13:00
25 May 2012

Program an ATTiny45 with a Teensy 2.0

I have a Teensy 2.0 and some ATtiny45 and ATtiny85 chips from Atmel, which I want to program with a minimum of fuss and parts. For me this means using the Teensy as an "In System Programmer" or ISP, and there are plenty of other articles on how to do this. But I thought I'd file what I've got here for reference anyway. It's very easy - no hardware required except a Teensy, the ATTiny...
mike 25 May 2012 at 15:26