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Hackaday Links: May 5, 2019
Simulacra and simulation and Kickstarter videos. The Amigo Robot is a 4-wheeled omnibot robot on Kickstarter. It does STEM or STEAM or whatever. Oh neat, injection molded magnetic pogo pins, that’s...
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A Function Generator In Its Purest Form
If you have a modern function generator on your bench it is quite likely to contain a direct-digital synthesis circuit that creates arbitrary waveforms using a microporcessor controlled DAC. If you...
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Web Interface Controls Nixie Tube Clock
We love our clocks around here and we love nixie tubes as well. The combination of the two almost seems to be a no-brainer. With the modern twist of an ESP8266, Reddit user [vladco] built a minimalist...
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Insert Coin (Cell) To Play LedCade
In this era of 4K UHD game console graphics and controllers packed full of buttons, triggers, and joysticks, it’s good to occasionally take a step back from the leading edge. Take a breath and remind...
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LED Matrix And A Phototransistor Make A Reverse Camera
A digital camera has an array of sensors that captures light reflected or transmitted onto it. This build is something closer to a reverse camera – a single sensor that makes images on a matrix of...
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Thumbs Up For This CRT Handheld Gaming Console
Despite all the progress video game graphics have made, it is safe to say that we won’t see any decline in oldschool 8-bit games any time soon. For some it’s about nostalgia, for others it’s just a...
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Getting That Neon Sign Look Without All The Hassle
We all love the look of neon signage, but the between the glassblowing equipment, gas cylinders, high voltage, and the associated skill set, it’s not practical for everyone. Luckily, these days...
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Super Mario Land DX ROM Hack Shows What Game Boy Could Have Looked Like
It was about time (Mario Time) that Super Mario Land for the original Game Boy was revisited. The game served as the entry point into the world of portable gaming for millions, and it was an early...
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Building Keyboards With Resin Printers
Aside from putting a whole lot of tact switches on a board, no one has quite figured out how to make very small keyboards for wearable projects. [Madaeon] might have the answer, and it’s using a...
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A Quite Obscure C128 Video Mode Hack
30 years ago, [Dave] found himself up a C128D creek without a paddle. His main monitor was on the fritz, and he needed to use his C128D in 40-column mode to run old C64 programs for development...
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The Sampler That Fits In Your Pocket
The future of the music instrument industry lies in synthesizers, and nowhere is this more apparent than the suite of tiny, pocket-sized synths more than capable of making bleeps and bloops. You’ve...
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Arduino Leonardo Gets A Lockable Bootloader
Security is something that’s far too often overlooked in embedded devices. One of the main risks is that if the device doesn’t verify the authenticity of incoming firmware updates. [Walter Schreppers]...
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Edge Lit Pendant, Is, Well… Lit
Acrylic is a great material. It’s not cheap, but it comes in a wide variety of colours and styles and can be used to make some very attractive projects. [Geek Mom Projects] is a big fan, and whipped...
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Pushing 3D Printed Wheels And Transmissions To The Limit
What do you do if you want a robot with great mobility? Walking is hard, and wheels are good enough, especially if you use the ‘wheels within wheels’ Mecanum setup. But you need torque, too. That’s...
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An Easy Camera Slider Build
As smartphone cameras improve with each new generation, making quality video content is getting easier all the time. This means it takes a little more to stand out, so it pays to get creative with...
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Help Solve The Single-Transistor Latch Mystery
If you’ve spent any time on hackaday.io, you may have noticed that more than a few denizens of the site are fans of “alternative” electronic logic. Aiming to create digital circuits from such things...
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Dark Absorbing Diodes Are No DAD Joke
We will confess that the authors of the Applied Physics Letters article “Experimental Demonstration of Energy Harvesting from the Sky using the Negative Illumination Effect of a Semiconductor...
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Make An Electroplating Marker, Because Plating Complex Objects Is Hard
If an object is conductive or has been given a conductive coating, it can be given a metal skin via electroplating. Electroplating is a simple process that is perfectly accessible to anyone in...
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The Two-Dimensional Stepper Motor
Over on hackaday.io and deep in the Hackaday Prize, a lot of cool people are playing around with the possibilities of putting coils in printed circuit boards. On the face of it, it makes sense:...
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Sniffing CAN To Add New Features To A Modern Car
It used to be that there wasn’t a problem on the average car that couldn’t be solved with a nice set of wrenches, a case of beer, and a long weekend. But the modern automobile has more in common with a...
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