lokki, who you may recall from their unique MIDI Bass Guitar project, is back with another fun musical creation, this time in the form of an infrared foot controller — sort of like a giant KaossPad for your toes!

https://www.pjrc.com/xy-midi-foot-controller/

Nick Culbertson, who you may recall from the ("world’s smallest?") Mini MIDI Controller project, is back with more Teensy-based synth goodness, this time in the much larger, cigar-box-sized Teensy Arcade Synth

https://www.pjrc.com/teensy-arcade-synth/

Markus Gruen developed RTMC (Real Time Measure and Control), a universal data acquisition, logging and I/O system. The Teensy 4.1-based platform enables data capture from any I2C, SPI, RS-232, or analog sensor.

https://www.pjrc.com/universal-data-acquisition-and-logging/

YouTuber Stuff Made Here has shared the latest evolution of his intelligent basketball hoops, this time in the form of the ball-seeking hoop. Powered by a Teensy, this robotic backboard moves through three-dimensional space to ensure every shot ends with a satisfying swish.

https://www.pjrc.com/ball-seeking-hoop/

After more than a year of development, sucofunk released Beatmaker's Sketchbook, a Teensy 4.1 based sampler and sequencer. Designed as an Open Source alternative to the OP1 and MPCs, it follows a "Sample, Sketch, Arrange, Play" workflow to help take your ideas from simple noodling to live performances.

https://www.pjrc.com/beatmakers-sketchbook-sampler-sequencer/

Andrew J. Harvie and John C. de Mello created OLIA, an open-source digital lock-in amplifier. Digital lock-in is a method for isolating weak signals to facilitate measurement amongst background noise, which is processed away via digital signal processing (DSP). The Open Lock-In Amplifier (OLIA) is a Teensy 4.0-based system that can outperform far more expensive commercial devices.

https://www.pjrc.com/olia-open-source-digital-lock-in-amplifier/

Gero Takke created the Ottopot, a Teensy-powered MIDI controller with "nothing but 8 dials". But what dials they are! 14-bit MIDI CCs changes with a 1:1 mapping to physical movement provides an experience more akin to analog pots, but with continuous rotation

https://pjrc.com/ottopot-midi-controller/

The technology we experience as children can have a lasting impression. An algorithm that Mate Steinforth saw at a relative's house had such an impression that three decades later it drove the creation of a #Teensy based realization in LED form

https://www.pjrc.com/led-lines-algorithm/