Category Archives: Teensy

This Two-Wheeled RC Car Is Rather Quick

Radio control cars have always been fun, it’s true. With that said, it’s hard to deny that true speed was unlocked when lithium polymer batteries and brushless motors came to the fore. [Gear Down For What?] built himself a speedy RC car of his own design, and it’s only got …read more

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Posted in car hacks, pid, pid control, R/C car, radio control, self balancing, Teensy, Teensy 3.6 | Leave a comment

The Clickiest Game Of Tetris You’ll Ever Play, On A Flip-Dot

Like many other classics it’s easy to come up with ways to ruin Tetris, but hard to think of anything that will make it better. Adding more clickiness is definitely one way to improve the game, and playing Tetris on a flip-dot display certainly manages to achieve that.

The surplus …read more

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Posted in classic hacks, electromechanical, flip-dot, matrix, pixel, shift register, Teensy, tetris | Leave a comment

Meet Tympan, The Open Hardware Hearing Aid

If you’re the kind of person who’s serious about using open source software and hardware, relying on a medical device like a pacemaker or an insulin pump can be a particular insult. You wouldn’t trust the technology with your email, and yet you’re forced to put your life into the …read more

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Posted in bluetooth, hearing aid, medical devices, Medical hacks, Teensy, Tympan, wearable hacks | Leave a comment

Open Source Fader Bank Modulates our Hearts

Here at Hackaday, we love knobs and buttons. So what could be better than one button? How about 16! No deep philosophy about the true nature of Making here; [infovore], [tehn], and [shellfritsch] put together a very slick, very adaptable bank of 16 analog faders for controlling music synthesis. If you don’t recognize those names it might help to mention that [tehn] is one of the folks behind monome, a company built on their iconic grid controller. Monome now produces a variety of lovingly crafted music creation tools.

Over the years we’ve written about some of the many clones and …read more

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Posted in control voltage, diy, fader, Microcontrollers, mini, Modular synthesizer, monome, music, musical hacks, oshw, synthesizer, Teensy | Leave a comment

Billiard Ball Finds a New Home in Custom Trackball Mouse

They walk among us, unseen by polite society. They seem ordinary enough on the outside but they hide a dark secret – sitting beside their keyboards are trackballs instead of mice. We know, it’s hard to believe, but that’s the wacky world we live in these days.

But we here at Hackaday don’t judge based on alternate input lifestyles, and we quite like this billiard ball trackball mouse. A trackball aficionado, [Adam Haile] spotted a billiard ball trackball in a movie and couldn’t resist the urge to make one of his own, but better. He was hoping for a drop-in …read more

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Posted in arcade button, encoder, hid, misc hacks, mouse, optical, Teensy, trackball | Leave a comment

Is That A Vintage Computer In Your Pocket?

There’s a lot of debate over which of several contenders was the first modern computer. One of those first operating computers was the University of Cambridge’s EDSAC — the brainchild of Dr. Maurice Wilkes. The EDSAC scored a lot of firsts and used a serial data path along with mercury delay line memories. Over on Hackaday.io, [David Boucher] wanted to simulate the EDSAC in a much smaller form factor than the original room full of racks.

As you can see in the video below, he succeeded in that task, using a Teensy and a small LCD display. We’re reminded EDSAC …read more

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Posted in edsac, retrocomputing, Teensy | Leave a comment

RC Controller Becomes XInput Controller

XInput is an API that is used by applications to interface with the Xbox 360 Controller for Windows. The 360 controller became somewhat of a “standard” PC gamepad, and thus many games and applications support the XInput standard.

[James] is working on an entry for a robotics competition, and wanted a controller to use with their PC that was more suited to their build. They took an RC controller, and converted it to work with XInput instead.

The controller in question is the JJRC Q35-01, a trigger-type RC controller available for under $20. The conversion is executed neatly, with the …read more

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Posted in classic hacks, controller, radio control, rc, Teensy, Teensy 3.5, xinput | Leave a comment

An Easy Way To MIDI Sync Your Eurorack Build

Eurorack synthesizer builds are known for a lot of things; simplicity isn’t necessarily one of them. However, not everything on a modular synthesizer build has to be inordinately complicated, a mess of wires, or difficult to understand. [little-scale] has built a neat and tidy module that might just find a place in your setup – the Chromatic Drum Gate Sync. The handy little device is based on a Teensy, and uses its USB MIDI libraries to make synchronizing hardware a snap.

The device has 12 channels, each responding to a single MIDI note. A note on message is used to …read more

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Posted in eurorack, midi, musical hacks, synth, synthesizer, Teensy, usb midi | Leave a comment

Incredibly Heavy Ornament Likely Inappropriate To Hang On Tree

It’s that time of year again, and the Christmas hacks are flooding in thick and fast. To get into the Christmas spirit,  the FoxGuard team wanted a custom ornament to hang from the tree. They may have gotten more than they bargained for.

It’s a simple build that demonstrates the basic techniques of working with DACs and scopes in a charming holiday fashion. A Tektronix T932A analog oscilloscope is pressed into service as a display, by operating in XY mode. A Teensy 3.5 was then chosen for its onboard digital to analog converters, and used to output signals to draw …read more

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Posted in christmas, Holiday Hacks, ornament, oscilloscope, scope, Teensy, Teensy 3.5, tektronix | Leave a comment

Teensy Liberates the ThinkPad Keyboard

[Frank Adams] liked the keyboard on his Lenovo ThinkPad T61 so much that he decided to design an adapter so he could use it over USB with the Teensy microcontroller. He got the Trackpoint working, and along the way managed to add support for a number of other laptop boards as well. Before you know it, he had a full-blown open source project on his hands. Those projects can sneak up on you when you least expect it…

The first step of the process is getting your laptop keyboard of choice connected up to the Teensy, but as you might …read more

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Posted in computer hacks, flexible printed circuit, keyboard, peripherals hacks, Teensy, thinkpad, usb | Leave a comment