Ben Gruver designed his own replacement to a discontinued keyboard. His 3D printed lalboard uses a pair of Teensy 2.0s and was designed by using custom molds of his hands and wrists for that true custom fit. www.pjrc.com/unconvention...

ElectronDon66 created a Teensy 4.0 based Directional Gyro. It features a round TFT display and because it doesn't use a magnetometer it's immune to magnetic disturbances caused by things like ferrous metals and electric motors. www.pjrc.com/directional-...

Arvind Singh designed and built a custom Rubik's cube solving machine. Aptly named S.A.R.C.A.S.M it's powered by a Teensy 4.1 to drive multiple servos and a stepper motor. He may call it slightly annoying, but it's also remarkably entertaining. www.pjrc.com/rubiks-cube-...

Holger Wirtz upgrated his MicroDexed synthesizer to include a TFT Touch Display and the ability to add custom samples by utilizing the PSRAM available on the Teensy 4.1 www.pjrc.com/microdexed-t...

Michael Rechtin is building a DIY Motion simulator using a Teensy 4.0 to control the stepper motors that deliver a realistic motion experience to transform a computer simulation into a more authentic flying experience. www.pjrc.com/diy-motion-s...

phjanderson made TeensyMix Synth, an 8-voice polyphonic synthesizer powered with a Teensy 4.1. Designed to be an easy build it is controlled using dials, sliders, and buttons - no complicated menus to use the the impressive list of features. www.pjrc.com/teensymix-op...

Frost Sheridan updated a 1980s-era Kodak MegaPlus 4.2i using a Teensy. Teensy 4.1 was a natural choice to build the required frame-grabber thanks to the onboard RAM and built-in microSD card socket. www.pjrc.com/80s-megapixe...

Nathan "Acorn" Pooley created a terrifying and endearing dragon halloween costume using a Teensy for the mechatronic aspect of the design. It's never too early to start planning your epic costume so you can dress to impress, or scare as the case may be. www.pjrc.com/dragon-hallo...

Nathan DeVrio and Chris Harrison designed a haptic feedback device powered by the Teensy 4.1. Reel Feel enhances the VR experience by adding the tactile sensation lacking in most AR/VR/XR systems. www.pjrc.com/reel-feel-ha...

Hartmut Grawe created LispDeck, a handheld cyberdeck powered by Teensy 4.1 that runs uLisp, a microcontroller-optimized version of Lisp. Gone are the days of needing a mainframe your Lisp code. www.pjrc.com/handheld-lis...

Mark "The Electronic Engineer" Donners used Teensy 4.0 to make vocoder that make you sounds like a Cylon from Battlestar Galactica. www.pjrc.com/spectrum-ana...

Researchers Jéssica Cristina Tironi, Anita Fernandes, et all developed a Teensy-powered self-stabilizing pen that counters hand tremors in Parkinson’s patients www.pjrc.com/self-stabili... Image is an illustration from academic paper, not actual photo of the prototype

Craig Barnes has created a Teensy 4.1-based bi-timbral synth controller with 64 split upper/lower channels of ControlVoltage (CV) www.pjrc.com/bi-timbral-s...

Small epiphany... Sindri, last legendary weapon crafting dwarf after murder of his brother Brok in God Of War Ragnarök, is the analogue of Marvel Cinematic Universe Dwarf whose name I don't recall, but let's just go with Tyrion Lannister.

Trevor Flowers has created 1/3 scale replica of the 1978 DEC VT100 computer terminal, complete with functional Teensy 4.1-powered keyboard www.pjrc.com/13-scale-vt1...

Keith Baxter a unique device named the Zen Flute. Perhaps best described as a "mouth Theramin", the instrument uses changes in the shape of your mouth (rather than blowing into the mouthpiece) to control the pitch of a Shakuhachi-like synthesizer system www.pjrc.com/zen-flute-mo...

Cathy Fang, Yang Zhang, Matthew Dworman and Chris Harrison created Wireality: a haptic system that simulates the experience of encountering physical obstacles in VR. Teensy receives VR commands to control solenoid-driven pawls. www.pjrc.com/vr-haptic-fe...

Karan Ahuja, Sujeath Pareddy, Robert Xiao, Mayank Goel and Chris Harrison have created LightAnchors — a new technology for AR anchoring and data transmission using existing light sources such as LEDs and light bulbs www.pjrc.com/ar-anchors-a...

Carlos converted a small Harbor Freight Predator 212 engine from carburetion to Electronic Fuel Injection using Teensy 4.0 www.pjrc.com/engine-fuel-...

Teensy hobbyist 1101010 has created a charming project named "Dial-a-Memory." The system uses Teensy plus Audio Adaptor Board to play various audio files depending on the number dialed on the attached telephone www.pjrc.com/dial-a-memory/

Final Dave has written an extensive blog post detailing how to create your own electronic drum set (and glove!) using Teensy pjrc.com/electronic-d... finaldave.com/how-to-build... We don't have many pictures for this project, but Dave's article has a tremendous amount of info!

Andrew DeLisa has created a Teensy-based open source software and hardware solution for the measurement of voltage and current data in embedded systems www.pjrc.com/powerprof-po...

Branden Hall and his son, Kai created a story-driven interactive art installation inspired by narratives like Carl Sagan’s Contact and The Last Starfighter for the Constellation regional BurningMan event www.pjrc.com/sidereal-art...

Mechanical engineer and YouTuber Clay Builds restored late-90s Nomadic Technologies N150 robot using Teensy 4.0 and ESP32 and the original ultrasonic rangefinders and bump sensors www.pjrc.com/rebrained-re...

Brett Gossage has put together a ten-minute video guide to using USB MIDI with Teensy, including how to interface a classic 5-pin MIDI DIN connector to a modern Digital Audio Workstation. Older content but still applies to latest Teensy models. www.pjrc.com/usb-midi-how...

Jean-Marc created the tiny, Teensy 4.1-based, T-COMPUTER, a full-featured handheld computing platform, with 42 keys and a built-in 320×240 TFT display. It runs SUPERNES emu! www.pjrc.com/t-computer-m...

Andrei Holingher built a NixieTube Audio Spectrum Analyzer with a digital optical audio input processed by the Teensy Audio Library www.pjrc.com/nixie-tube-a...

James Bruton has created a "screw bike" in the vein of screw-drive tanks, with the additional feat of making it self-balancing. The bike features Teensy 4.1 boards to control its ODrive motors via CAN bus, while IMUs work with the Teensy to help keep things upright www.pjrc.com/self-balanci...

Andy Belov created a general-purpose Teensy-based programmable musical instrument, with 18 touch sensors, a touchscreen, MIDI, Bluetooth, and colorful front panel. www.pjrc.com/programmable... This is an older project, some info is gone, but source code is still on github.

Tested cheap I2C character LCD with Teensy and Wire2 port. Works fine, but only with 5 volt power. forum.pjrc.com/index.php?th... Electronics can be tough. A "simple" power incompatibility can turn into confusion quagmire of libraries, ports, wiring, and whether it works at all.