Recent Blog Posts
BitByte Handheld Console
Dawson Pate has created BitByte, a Teensy 4.1-based handheld console with an easy-to-learn scripting language for creating your own games.
The Micro VM language allows games to be edited as simple text files on a microSD card, which is automatically mounted as a mass storage device when connected via USB.
The handheld […]
MIDI Foot Pedal Controller
ChrisT had an idea for a MIDI pedal board that could send MIDI messages to his laptop while playing guitar, to trigger samples, change effects, and play synth pad chords.
After prototyping in software using HTML and JavaScript, ChrisT built a prototype using plastic multi-purpose compartment organizers that […]
Old Phone Interface to MS Teams and Zoom Calls
MikeSound found two old phones from the 50s and 70s in his parents’ basement. Still in good working order, and visually striking compared to today’s drab black slabs, Mike decided to give them new lives as Microsoft Teams/Zoom-compatible headsets using Teensy 4.0.
In addition to headset functionality via the […]
Hybrid MIDI Grand Piano
A hybrid piano translates traditional acoustic piano action into MIDI (unlike a purely digital MIDI keyboard), giving pianists the best of both worlds.
Greg Zweigle had long wanted to build his own, and has gotten all 88 keys working, using two Teensy 4.1s and a Kawai grand piano action.
Greg […]
Custom Elite Joystick
Benkster had a dream of creating the perfect custom joystick for Elite Dangerous.
The dream was a lengthy one, spanning two years and numerous iterations. The current version is a leviathan 3d-printed affair with two 3-axis joysticks, one 2-axis joystick, a heap of buttons, and a tiny OLED display to […]
Eurorack Synth Prototype
Lucian_dusk has created a self-described “functional Teensy 4.1-based breakout board for Eurorack modular synth(s).”
Based around the versatile Cirrus Logic CS42448 audio codec, the board features CV input and multichannel audio I/O, with an auxiliary PCB multiplexing five channels into one analog pin. More detail, including schematics, can be found […]
FloydTheRobot’s Dual Arm Controller
Madgrizzle’s FloydTheRobot is an ongoing DIY ‘bot project with ever-evolving capabilities, the latest being the addition of two quite versatile-looking Teensy 4.1-powered arms.
The controller has four TI DRV8874 H-bridge motor drivers and four ports for Hiwonder HX-35HM Serial Bus Servos. Two PWM servos control pan/tilt of the robot’s camera, and integrated fan management […]
Piccolo – Polyrythmic Errorist and Stochastic MIDI Sequencer
Sylvain Van Iniitu has open-sourced their Teensy 4.1-based polyrythmic errorist and stochastic MIDI sequencer, Piccolo meant for generative and process-based music.
Featuring MIDI in and out, tap tempo, 16 channels x 4 layers, and 64 layer memories (save/load as .txt on mSD), the system boasts 1ms precision and unlimited […]
Voyager Sailing Drones
John Semmens reached out to us to share his Voyager Sailing Drones — a pair of low-cost autonomous ocean-going boats, powered by Teensy 4.1.
The drones are four and six feet in length respectively, constructed of fiberglass over a foam core, similar to a surfboard. The self-trimming sail is controlled via Bluetooth. An […]
Thermal Imaging Camera
PJRC forum member blackcoffee has created a Thermal Imaging Camera based on Kris Kasprzak’s original Teensy 3.2-based project, using the same AMG8833 infrared array sensor, but updated to use Teensy 4.0.
The unique enclosure holds a homemade PCB, in addition to the sensor, batteries and LCD display. STL […]
Logic Analyzer As Low-Res Display
Ted Fried of MicroCore Labs picked up a 1975 HP 1600A/1607A logic analyzer set over the weekend, his first instinct was to throw a Teensy at it!
The Teensy 4.1 was just the thing to provide 32 data signals and two clock outputs to the HP1600A logic analyzer, which […]
Juno-106 Synth Clone
Edward Wang had a dream of owning a Roland Juno-106, buy no money to buy one. So actually maybe just one thing: an extreme desire to recreate the sound he heard on a Tame Impala album. Thus began the teensy-juno, a polyphonic synthesizer modelled after the Juno-106.
In addition […]
Lathe Turret Control
Brendan Riuz is working on a project to allow a 16-station turret to be added to a CNC lathe. This requires a microcontroller to interface with the motion controller, stepper motors, and more, for which he chose a Teensy 3.5.
The solution is all-electric, with no compressor or hydraulics required, and […]
Bullet Speed Chronograph
Ledmasters has created a chronograph for measuring bullet speed, using a Teensy 4.0 connected to an Adafruit Feather M0 via RFM69 433MHz radio modules.
Stats are displayed on a 3.2″ TFT display, and can be printed via an integrated thermal printer. Piezos attached to PET film are used […]
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