By Nati cz (Own work) [Public domain], via Wikimedia Commons

How to actually secure IoT devices

Tom Parker wrote “Every day it feels like there’s some new Internet of Things (IoT) story, telling us how these new devices in our homes and offices are causing more and more havoc. On the other hand, we really like the new and shiny things doing funky things for us, and that doesn’t look like it’s slowing down…”

Using the BBC micro:bit with PlatformIO

Tom Parker wrote “I recently acquired a micro:bit, the new BBC device intended for helping computer education. After a bit of delay, they’ve finally starting shipping the device, and now members of the public like myself can grab one. So, why this device in the middle of a sea of other options in the modern embedded environment? Well,…”

Waveform Necklace as a Service

Tom Parker wrote “I’m generally quite fond of laser cutters and cute crafting things done with them, so when I saw a Waveform Necklace Instructable the other day, I had to give it a go. Basic idea is that you take a sound recording’s waveform and reduce it’s waveform down to a level where it can be reasonably represented…”

Spark Core-based proxy

Tom Parker wrote “Regular readers of this blog will have seen my earlier post on Dalek remote control where I used a Spark Core to connect the Dalek’s remote control to the internet. However, in the second post I noted how hotel Wi-Fi is basically evil, and so I ran into all manner of problems with connecting the Spark to the Wi-Fi in…”

By Tony Hisgett from Birmingham, UK (Dalek 1) [CC BY 2.0 (], via Wikimedia Commons

Telepresence Dalek: Part 2 – Video

Tom Parker wrote “Previously I wrote about the remote control parts of the Telepresence Dalek, but that’s only half the problem. The other half is video, both to provide a view of the Dalek’s PoV for the operator and to display the operator’s face on the Dalek.”

By Tony Hisgett from Birmingham, UK (Dalek 1) [CC BY 2.0 (], via Wikimedia Commons

Telepresence Dalek: Part 1 – Remote control

Tom Parker wrote “Earlier this month, I went to a science-fiction convention by the name of Dysprosium. At said convention was a competition called “Dalekdrome”, with the idea of taking remote controlled Daleks and then customising them. When I was first told about this, I was at another convention where someone was attending via a telepresence robot, and so…”

Smart meters

David Ireland wrote “I’ve been using a micro-controller to automatically dim lights according to the time of day and ambient light conditions. At some point, I decided it would be easier to tinker with if I just used a raspberry pi, logged into it, and edited a python program. This doesn’t work: The pi basically can’t do PWM…”