sdr SDR Pt.6 It's been a while since I was able to devote much time to this and as the Weather Underground service is still not accepting submissions it hasn't been a high
sdr SDR Pt.5 After the highs and low of the last coding session, it was heartwarming when after a few minor tweaks I saw this... Reading direct from the ISS :-)Now I
sdr SDR Pt.4 I've managed to spend more time looking at it and have made some progress, though have once again run into issues. After much investigation I've created a processing flow that
development SDR Pt.3 Having found what appeared to be signals from the weather station in the data I captured (read here for more) the next logical step was to try and decode it.
development SDR Pt.2 Continuing to try and figure out how to grab the data from the SDR it struck me I had a few pieces of the puzzle to complete. Can I actually
Soapbox Blog I've finally got round to moving my blog to Ghost though the change has not been simple and I think images may not be fully working yet. I'm still using the default theme though I do plan to change at some point. Hopefully it
development SDR For the last few years I’ve had a Davis Vantage Vue weather station. It’s been great though getting the data in a useful format is far from easy.
desktop Flirting with the dark side... Last month our 2010 27″ iMac stopped working. There was no drama, just a black screen where previously had been the High Sierra backdrop. A quick bit of investigation showed that it wasn’t as simple as a dead machine. The fans still blew
server Simple ZFS Usage For years all I heard from various people I know was “ZFS“. It was the answer to almost every question and given how few OS’s supported it always appeared to be the promised land over the rainbow. That was then, but in recent
Fail2ban Logging Over the last few days I’ve been trying to help one of my users who had an odd connectivity issue for my server. After looking at the obvious issues it started to look more and more like he had triggered one of the
Multiple Postfix Instances I’ve been using Postfix for around 5 years now and it’s been a great solution for mail. Initially I used a single instance, but as the mail volume grew it started to cause bottlenecks and frustrations. The solution was to move from
PostgreSQL & FreeBSD 10.3 I’ve recently started moving back to FreeBSD from Ubuntu. As it’s a large move and I’ve not touched FreeBSD for quite a few years, baby steps are required. With that in mind I’ve started small with my home server and
development RaspberryPi & SWD The KroozSD board now comes with a handy SWD connector, a simple 3 pin 1mm JST located in the middle of the board. As debugging is one of the harder aspects of embedded development the connector has always been an interesting addition but finding
development Quad Update #7 In my earlier post I said that the bootloader for the KroozSD was luftboot, but in reality it’s available here. The version contained in that tree doesn’t appear to be fully up to date as there is no CRC and the strings
QuadCopter Quad Update #6 6! Who knew I’d get this far and still not have a flying quad? At least I’m getting closer and learning a lot along the way… Satellite Receiver I’ve updated the spektrum_serial.py code to have code that now converts
QuadCopter Quad Update #5 Having spent some more time looking at the Spektrum SPM9246 satellite receiver and it’s output I’ve made some progress. When trying to use this with Paparazzi I’ve had very variable results and it fails to work. Direct Binding Doesn’t Work
QuadCopter Quad Update #4 Following on from my experiments with the radio control receiver I still found myself unable to simulate the binding process. Everything I’d read suggested that a series of pulses needed to be sent just after power up, but the code in paparazzi that
QuadCopter Quad Update #3 When I started updating the quad I didn’t expect it to be an instant process, but I didn’t really expect it to take as long as it is taking me 🙁 The delays are due to a number of reasons, but the time
QuadCopter Quad Update #2 I’ve spent a bit more time with both Paparazzi and the KroozSD board, so these are a few more observations. NB these ONLY apply to the KroozSD board 🙂 Configuration After a good look through I changed the settings to match my configuration, tweaked
QuadCopter Quad Upgrade When I built the quad I went with a simple controller with the intention of upgrading at some point once I had more idea “what I was doing 🙂 Of course, such an open ended target was a total cop out and after some discussions
development Routing D'oh! React-router is a great addition to React, but yesterday marked the first time I had used it for a project. It led to a period of head scratching, but maybe this post will help someone else avoid the same mistake I made! Simple Setup
postgrest views When is a view updateable? The answer becomes important when using views to access the data via postgrest. If a view isn’t updateable then insert, update and delete operations will fail. It’s possible to check by requesting ‘/’ from postgrest to get information
development postgrest lessons learned I’ve been spending some time recently getting to grips with postgrest by writing a small schema and figuring out how it all sits together with the help of a simple python client. The plan is to continue to develop it as a react/
letsencrypt The idea behind letsencrypt is great. Wanting to add an SSL certificate for one of my domains I decided it was time to see how it worked. Installation No package is yet available for Ubuntu, so it was onto the “less preferred” git route.
development Command line babel? Babel is a great project and a really useful npm module. I’ve use it in almost all of my webpack experiments, but recently I had a need to use it from the command line. Thankfully there is the babel-cli module. However, things weren’
