Building a direct conversion receiver

Ryan Flowers over at MiscDotGeek posted a how-to on building a direct conversion receiver: In the first installment of this series, we discussed why we’re building a Direct Conversion receiver and talked about some basic ideas. In this installment, we explore what it takes to make the leap from a printed schematic to something physical […]

DakBoard family calendar with Raspberry Pi Zero W and Read Only filesystem

Scott Hanselman made this DakBoard family calendar with Raspberry Pi Zero W and wrote a post on his blog detailing its assembly: The implementation is simple genius. It’s a browser that starts up full screen (kiosk mode) and just sits there and updates occasionally. DakBoard provides the private webpage and tools to make that happen. […]

The OpenBrite Turbo controller for Vectrex

Stephen Wylie blogged about his Turbo Vectrex controller build:  The main impetus for this was to have a homebrew controller that actually featured an analog joystick, since there were few if any guides elaborating how to fashion one from an existing controller.  I acquired a couple Parallax 2-axis joysticks with breadboard mounting capability to do […]

Simple homebrew 6502 computer

Sven Krasser blogged about his 6502-based homebrew 8-bit computer build: After completing my VGA Generator project a while back, I’ve embarked on a new electronics project: building a simple 6502-based homebrew 8-bit computer on a breadboard. There are a bunch of similar projects online from which to draw ideas. Some projects set constraints such as only […]

ICSP switch box

Stynus has published a new build: For a project I need to program a few microcontrollers in the same circuit. This meant I needed to plug the programmer around on the board a lot.  This got annoying very fast. Therefore I decided to make a switch box. In my junk pile I found an old […]

Povon home energy monitor part 1, 20 channel system

Coyt Barringer documented his home energy monitor project called POVON. This first part of a series will detail the 20 Channel sub-metering hardware: Our initial goal was to monitor power consumption in different parts of the house, and we quickly realized every household circuit would need to be monitored. After some research, small clip on […]

SmileyBox – Statistics, the old fashioned way, upgraded

Vagrearg published a new build: Lies, damn lies and statistics. You have a high school science fair and want to know how your project was perceived by the visitors. Modern online behaviour will direct you to “taking the online survey”. That requires an extra step for the visitors, usually by taking hold of their mobile […]

Atari 5200 Playstation 2 dual-shock controller adapter

Dr. Scott Baker has developed an adapter that allows you to use Playstation 2 analog controllers on an Atari 5200, that is available on gitHub: This adapter allows you to use a PS2 controller on an Atari 5200 gaming console. The 5200 was notable at the time for its use of analog joysticks, but the […]

Homemade Atari 5200 analog controller

Dr. Scott M. Baker made a custom controller for the Atari 5200 vintage gaming console, that is available on Github: I decided to make my own Atari 5200 analog controller, using a sparkfun thumbstick together with ADC and digital pot to do the potentiometer scaling. The controller is aesthetically a bit rough, consisting of a […]

Ultra MegaMax Dominator (UMMD) 3D printer

Mark Rehorst has a nice write-up about building his Ultra MegaMax Dominator (aka UMMD) 3D printer: Ultra MegaMax Dominator (aka UMMD) is my third 3D printer design/build.  I used much of what I learned from its predecessors, and tried a few experiments, resulting in a very high quality machine that produces very high quality prints. […]

Electric steam boiler – first steam

Quinn Dunki has a great write-up on building this homemade-from-scratch electric steam boiler: Yes, you read that title correctly. After many months of effort, this homemade-from-scratch electric steam boiler is finally going to make steam. Before we’re done, we’ll learn some sobering lessons about the dangers of live steam. Now that our boiler is pressure-tested […]