I have my Edgerouter configured to hand out static leases for all my network clients using Dnsmasq, which also automatically puts an entry into the DNS with the client name. The Edgeos configuration for this is relatively straightforward:

dhcp-server {
...
    shared-network-name LAN1 {
        authori …

Lego® just announced their brand-new (as of April 2019) robotics education kit, the SPIKE Prime. It's available for …

Here's a set of Ansible playbook files to do an unattended compile of Python 3.7+ with SSL on a headless wifi-connected Raspberry Pi. A recent project of mine (bricknil) uses 3.7, and it was a little frustrating to get the default 3.5 upgraded on my Raspbian image …

This is the third in my series on using Curio to build an event-driven simulator for hardware processes. The first two parts can be found here: Part 1, Part 2. We're going to use the simulator framework to implement a distributed and concurrent hardware palindrome checker in less than 50 …

This is the second in my series on using Curio to build an event-driven simulator for hardware processes. (see Part 1 for the first article)

In this post, the first in a series of three, I'm going to show you how to build an elegant simulator of a concurrent system using the amazing Curio library from David Beazley that's built on Python 3.6's async coroutine features. I hope it'll provide a nice intro to …

This post describes some of my experiences writing a python extension for Moneydance, a cross-platform personal finance manager (an alternative to Intuit Quicken). I was originally attracted to this product because it runs on a Mac (albeit using a Java look and feel), uses Direct Connect to download transactions from …

Both for my work and personal use, I tend to develop many command-line Python scripts that are very data-driven and configurable. In Python, it's pretty trivial to use argparse to support complex argument and option structures, and then use the integration with configparser to allow one to write files that …

I recently needed to get an open-source circuit toolkit (HACKT)compiled and deployed on my local system. I already knew the C++ source compiled and installed fine on Linux, and didn't want to jump through the hoops to get it running on my Mac 10.11 (El Capitan) system, so …

After having worked with Xenserver 6.2 for over a year now, I've decided to migrate away from it. It just wasn't stable enough with SATA pass-through on my machine, and it had some really annoying bugs with the way snapshots and backups were handled:

• Under load, my SATA 8-bay …

In this post I'll detail the hardware I used to upgrade my 2 year old home server that was getting a little bit long in the tooth. I wanted to replace a Core i7 based XenServer host connected to an external 8-bay SATA enclosure that had an idle power consumption …

This is just my cheat sheet on setting up the EdgeRouter ERLite-3 in a home environment. I recently migrated to this after a long search for a low-power firewall and router solution. Prior to getting this beauty, I'd migrated my stand-alone PC running Ipcop/Smoothwall to a Xen virtual machine …

This post will show a quick and complete example on how to authenticate someone using their Google credentials in your Ember.js web application. This uses the implicit-grant scheme in Oauth2, so everything happens on the client side, without exposing the user's Google credentials or requiring a back-end server. Obviously …

Recently, I needed a way to detect if a color scanned image was actually color or just contained greyscale/BW content. I also wanted to detect if an image was "blank", or just a continuous shade of one color. I couldn't really find a simple solution on the web, so …

Here's how I managed to get Linux to recognise scan button presses on the S1500, and automatically initiate a scan to a pdf file. You first need to download Scanbd and install it. Unfortunately, there doesn't seem to be any apt repository for Scanbd, so I had to download the …

Inspired by this article on Python Weekly, I thought I'd look into deploying a simple hello world application to Heroku, built on the Flask micro framework.

Here's my workflow:

• Create a new directory and …

I managed to piece together how to attach a new PDF file to an Evernote note using their Python API, so I thought it might be useful to have a post that has all of this information together in one place.  I've put together a complete example that will:

1. Authenticate …