Category Archives: Blog

https://www.adafruit.com/

http://www.adafruit.com/ This site is fantastic for tutorials, resources, all help imaginable in fact. They have videos, live shows and amazing products. They create their own components as well as sell others, and all products are tried and tested (and broken apart) before they sell them. Complete idols here for their hard work, passion and dedication.Recently teamed up with Arduino.cc to manufacture Arduino.cc boards so watch this space too.

https://www.sparkfun.com/

https://www.sparkfun.com/ This is pretty much The One of all the component sites. It is usually where I go to look up components to see their descriptions or for more information and links. They often have tutorials or datasheets and it is a great place to see what components are even available because chances are Sparkfun has it first and then the other distributors get it from them. USA based site so if you’re in the UK like me be aware of hefty duty fees! Ouch.

Aliexpress

http://aliexpress.com

This site has very cheap components for sale if you search hard enough.They will take up to a month to be delivered though so you have to plan ahead. Also – if you buy “Arduino” boards from them,it’s really cool if you also donate $1 to Arduino to support their making / open source files (as the other Arduino official sites include this in their pricing).

Teensey issue with Teensy

I’ve been using these super small boards for my latest projects, and one of them I needed to hook up very specific ports. I needed access to data information and you can only use the I/O that is designated for that. The component needed to be hooked up to the SDA and SLC, these are not the same as on other boards, (well whatever board you use you need to check of course), so here are the correct pin information for the Teensy boards… Continue reading Teensey issue with Teensy

SUS System Usability Scale

This is a scale that I wanted to keep a handy reference to, it links to the SUS pdf file so it can be downloaded.

Usability does not exist in any absolute sense; it can only be defined with reference to particular contexts. This, in turn, means that there are no absolute measures of usability, since, if the usability of an artefact is defined by the context in which that artefact is used, measures of usability must of necessity be defined by that context too. Despite this, there is a need for broad general measures which can be used to compare usability across a range of
contexts. In addition, there is a need for “quick and dirty” methods to allow low cost assessments of usability in industrial systems evaluation. This chapter describes the System Usability Scale (SUS) a reliable, low-cost usability scale that can be used for global assessments of systems usability.

SUS File <— the file to download if you need it.