08 Aug 2016
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
enough electrical power to start a good size fire and then walking away,
congratulating himself that he has come in under budget.
26 May 2016
The setup of the Yamaha F9.9 engine - I replaced the Yamaha 703 control box with a
mounted equivalent and some custom electronics, and linked the engine to the tiller
a rudder angle sensor for good measure)
29 Jan 2016
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...
17 Oct 2014
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...
27 Aug 2013
A circuit to integrate LittleBits with your computer via USB
15 Apr 2013
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...
25 May 2012
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...