I recently bought a new phone, because my old one’s battery capacity had degraded to the point where it couldn’t last me through the day – an experience that’s fairly common. The pain of financial expenditure fresh in my head, I decided to investigate what I could do to look after the battery of my […]
Read More A smart charger that preserves your phone batteryMy electronics workbench was missing one crucial component: a power supply. For years I’d got by as a broke student testing my projects with an assortment of DC adaptors, LiPos, AAs, small buck/boost converters and linear regulators. But enough was enough. I had been bitten by no current limit enough times: it was time to […]
Read More Making a DIY power supply from an old stereo ampOne of my favourite posts that I wrote for Hackaday recently was the coverage of what’s new in the latest Python release. You can read the full article here. Also of interest might be: Stop Using Python 2: What You Need To Know About Python 3 Make Your Python Prettier With Decorators Python’s Iterators and […]
Read More Hands on with Python 3.7: what’s new in the latest releaseI recently bought this fairly chunky buck converter from China, manufactured by a company called Yeeco. Despite its price, it works well and the quality of manufacture is high. You can set voltage and a current limit on the “control panel”, and you get some CV/CC lights too – it tries to behave like a […]
Read More Secret UART On Cheap DCDC convertersThis is a project that I’ve had on the back-burner for a while, but recently got around to finishing. It still needs some tuning but it’s getting there. Since I wanted to be able to control it from my phone, it uses a Raspberry Pi Zero W to handle WiFi communications. For a cheap, easily […]
Read More Balancing robotI decided to build a tube headphone amp because I’ve been aware of them for a while, but I wanted to see how much of a difference they actually make to a listening experience. I decided to go with an amp that uses a twin triode 12AU7 tube, which has two advantages: Runs on 12V, […]
Read More Tube headphone amplifierDue to a friend moving away (Finnian Anderson, check out his blog) I came into ownership of a Skywriter. I decided to hook it up to an Arduino Leonardo to create a gesture/shortcut pad for my computer. The skywriter can detect a number of gestures including flicks, circles and taps. I assigned each gesture to […]
Read More Computer gesture control with Arduino and skywriterA lot of the online guides broke when i3 acquired the new dependency xcb-util-xrm, and I’ve also had trouble with the xorg-macros package, so this post is just a collation of fixes, really. First, ensure i3 is not installed! I installed it before I tried to setup i3-gaps, hoping it would make installing the dependencies for i3-gaps […]
Read More Installing i3-gaps on UbuntuInformation is pretty scarce on getting these up and running, so I hope this quick guide might help to clarify the process for others. First, you want to expand the filesystem. Launch raspi-config: Go to Advanced -> Expand filesystem Now you’ll need a copy of the driver. Download it here. This installs the driver and also […]
Read More How to install a Makibes 3.5″ LCD screen on your Raspberry Pi (Raspbian)This is a very brief guide to putting QMK on your GH60 Satan, in a linux environment. There are many ways to do this, but this way works for me. It’s a very similar process for Mac. There are two parts to this: Compiling your custom QMK hex file for your board Using tkg-tookit to […]
Read More How to flash a Satan GH60 with QMK keyboard firmware (linux)