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Archive for the ‘DIY’ Category

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

Tuesday, December 4th, 2018

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...

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The OpenBrite Turbo controller for Vectrex

Monday, December 3rd, 2018

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...

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LM3886 based stereo amplifier

Tuesday, November 27th, 2018

Mark Rehorst blogged about his LM3886 based stereo amplifier build: Several years ago, National Semiconductor came out with some very high performance, easy to use audio power amplifier ICs.  I was in need of an extra amplifier so I could biamp some of my home-built electrostatic loudspeakers so I tried...

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Pocket high voltage generator upgrade

Friday, November 23rd, 2018

Aki posted an update on his pocket high voltage generator project we covered previously: The Pocket High Voltage Generator that I made a few weeks ago proved to be a very handy tool. I have been testing Zener diodes very often since I use many Zeners in 12V to 91V...

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Simple homebrew 6502 computer

Tuesday, November 13th, 2018

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...

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N6QW Heathkit SSB transceiver

Friday, November 2nd, 2018

Pete Juliano, N6QW,  has a nice build log on his newest version Heathkit 40M SSB Transceiver: What are you thinking -- I am not trying to break any world record? My XYL asked me that question today -- why are you building another rig? Followed up by a snide comment...

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Posted in DIY, RF | No Comments »

Battery monitor on a automotive relay form factor

Tuesday, October 30th, 2018

Jesus Echavarria made this battery monitor and wrote a post on his blog detailing its assembly: Here’s one of the design I do last year for a client. He wants to measure the voltage of a car battery and set a couple of alarms when voltage falls below a defined...

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ICSP switch box

Monday, October 29th, 2018

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...

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DIY custom power supply

Friday, October 26th, 2018

Anthony Lieuallen made this custom power supply and wrote a post on his blog detailing its assembly: You might not truly be an electronics nerd until you build your own power supply. Either way, I've finally passed that threshold. As I've mentioned previously (and previouslier), I've been working on mine...

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Povon home energy monitor part 1, 20 channel system

Thursday, October 25th, 2018

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...

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SmileyBox – Statistics, the old fashioned way, upgraded

Wednesday, October 17th, 2018

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...

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Posted in Arduino, DIY | No Comments »

Yet another Masterplay clone

Monday, October 15th, 2018

Dr. Scott M. Baker made a Masterplay clone: The Masterplay was originally a device that allowed Atari 2600 digital joysticks to be used with the Atari 5200. In this post, I describe a masterplay clone that I created. The analog controllers for the Atari 5200 are (in)famous for their poor...

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Pocket high voltage generator quick build

Thursday, October 4th, 2018

Aki made this DIY pocket HV generator: There are times you find yourself looking for a relatively high voltage (100V to 200V often in my case) but low current DC power supply. I have zener diodes that are higher than 30V, which makes the lab supply useless, and filament LEDs...

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Atari 5200 Playstation 2 dual-shock controller adapter

Friday, September 28th, 2018

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...

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IoT LED Dimmer

Tuesday, September 25th, 2018

Sasa Karanovic shared a how-to on making a IoT LED dimmer: Making a IoT LED dimmer that you can control via your PC, phone, tablet or any other device connected to the network is super simple, and I’m going to show you how. I’m sharing my three channel LED dimmer...

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Homemade Atari 5200 analog controller

Thursday, September 20th, 2018

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...

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Pocket Pi

Monday, September 17th, 2018

A Raspberry pi zero w pocket terminal project from Facelesstech, that is available on Github: So if you have been following my blog lately you may have noticed me rambling on about trying to get a Xbox 360 chat pad and an ps3 keypad working with a raspberry pi to...

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Ultra MegaMax Dominator (UMMD) 3D printer

Friday, September 14th, 2018

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...

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Posted in 3D Model, DIY | No Comments »

Electric steam boiler – first steam

Wednesday, September 5th, 2018

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...

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Building an Atari Punk console

Tuesday, August 21st, 2018

Øyvind shows you how to easily make a DIY Atari Punk console: Do you want a fun and easy-to-build circuit? Here’s the simple, but fun Atari Punk Console – with schematics and parts list. It’s a quick build, so you can easily build it during an evening. It takes its...

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