Recent Blog Posts
ROM Emulator for Commodore 64 & 128
Connecting to the Commodore 64 or 128 expansion port like a “normal” cartridge, TeensyROM from Sensorium adds ROM emulation, Internet, and even USB MIDI to some of the 1980’s most popular 8-bit machines.
We love seeing Teensy boards being used to give old hardware new superpowers, and […]
YJ-1S – Liquid Fuel Rocket Engine
We’ve seen Teensy boards in rockets, satellites, and more, but the first step of getting space-bound is developing a reliable engine.
Georgia Tech’s student-run Yellow Jacket Space Program enlisted three proud Teensy 3.6s in their mission to develop a liquid oxygen/kerosene rocket engine, the YJ-1S.
The first Teensy is used as […]
BigFoot – Midi Foot Controller
PJRC forum member pgi has created an impressive Teensy LC-based MIDI foot switch controller named BigFoot.
The elegant stacked-PCB system features eight assignable footswitches, bank selection, two expression pedal connectors with TRS/RTS switch, USB MIDI in/out, and MIDI DIN out.
Plan is to later build a full enclosure that will […]
Giant LEGO Minifig
The Sketchy Maker wanted to do something big for Star Wars day, but with only two weeks to put it together, this was a rather tall order.
The idea of a giant LEGO Luke Skywalker with working lightsaber came to mind, and thankfully a Teensy 3.2 and Prop Shield was at […]
Ableton Collaboration Controllers
Swedish sound designer Christian wanted to jam with other musicians using Ableton Live, but it wasn’t working. Instead of playing cooperatively, it seemed like everyone would end up in their own little bubbles, locked in a volume arms race that typically results in one big sonic mess.
The solution? Custom […]
A Clock with Benefits
When Jim Harvey aka WB8NBS finally got his hands on an 64×64 RGB LED matrix, the question quickly became what to do with it. Experimentation with libraries and examples eventually led to the notion of a digital clock, and ultimately to Jim’s Sand Clock or “Clock with Benefits.”
Based […]
How to cross compile and sign Windows EXE on Linux with Yubikey token
I recently obtained a new code signing certificate used to sign the Windows version of Teensy’s software. Because key storage rules have changed, and very little information currently exists for use in a cross compile workflow, I decided to write this article.
The basic concept is you wish to compile […]
Atari ST Emulation with MIDI & VGA
Teensy forum member Jean-Marc, who you may recall from his Teensy 4.0 Atari 520ST Emulator, is back with some exciting updates on the project.
For starters, as fun as it is to output the display to a tiny 320×240 TFT screen, some tasks are more practical on a “real” monitor — which is […]
Portable Data Acquisition System
Teensy boards power all manner of commercial products, being an ideal solution for high-speed data acquisition, and we were particularly excited by this system from Bolder Flight Systems.
BFS CEO Brian Taylor shared this Teensy 3.6-based unit, which was developed in conjunction with the International Test Pilots School (ITPS) […]
Aetherharp – MIDI Air Harp
We love alternative musical interfaces. XenonJohn’s Aetherharp uses inexpensive Sharp GP2Y0A41SK0F analog distance sensors to determine hand proximity.
Like a theremin it is played without physical contact by the performer, but using light rather than antennas to determine proximity. XenonJohn demonstrates the project on Instructables with his Teensy 3.5-powered Aetherharp.
Eight Sharp […]
Open-Source Electronic Load
Electronic loads are important tools in the EE arsenal, useful for confirming that power supplies, batteries, and other power sources behave as expected. But their expensive prices motivated YouTuber EEforEveryone to create an open-source solution that relies on off-the-shelf PC components for cooling.
A custom Teensy 4.0-powered PCB takes the […]
Digital Analog 2×1 Mixer
PJRC forums member rwalters wanted to build an analog mixer with digital control. The analog signal paths meant less expense, but without sacrificing digital convenience. The result is the PGA2310 2×1 Mixer Project.
Components are mostly socketed, so despite the name, a PGA2311 volume control could be auditioned instead, […]
SATLLA-2B Nano-Satellite
We love seeing Teensy boards in use all over the place, from model rockets to jet-engine powered cars, but there’s something extra special about seeing them in space!
Imagine our joy when Ariel University’s Rony Ronen reached out to let us know that the Teensy 3.6 was being used as the main […]
Luma-1: An Enhanced LM-1 Drum Machine
The Human League, Yazoo, Gary Numan, Giorgio Moroder, Devo, Prince…Roger Linn’s LM-1 drum machine helped create the signature sound of a huge number of artists in the 80s.
After receiving an original LM-1 as a gift, Joe Britt (of Danger Research/T-Mobile Sidekick fame) decided to create his own enhanced version, […]
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