Jesse Robinson created his own custom keyboard inspired by the Sun Type 6 keyboard.
Jesse wanted a keyboard that had the vast functions of the Sun and IBM keyboards and also had a number pad reversed to lay out like a telephone number pad. The build process included fabricating a custom frame and hand wiring all 136 mechanical switches for the keys.
Getting the Teensy ++ to fit inside the slim case required using right angle header pins.
Additional photos of the build process can be found here.
The hat uses an 8×32 LED matrix in 4 sections that run in parallel using the FastLED library. While battery life does depend on the brightness of the LEDS, Chris did wear the hat and had it running for about 5 – 6 hours at the Edwardian Ball without needing to change the batteries.
There is some good discussion on this forum thread about trouble shooting some issues where the LEDs were dramatically slowing down after about a minute.
Teensy-LC acts as a bridge between the Sun Type S serial protocol and USB. The Teensy-LC converts the proprietary serial protocol into common keycodes readable by generic USB keyboard drivers on all modern operating systems.
The folks at 1010Music have released the Euroshield, a Eurorack and audio interface for Teensy.
Euroshield allows users to customize their own synthesizer module. It uses the standard Eurorack power systems as well as standard patch cords for input and output of standard Eurorack level audio, CV and MIDI signals.
A few of the features include:
Two audio inputs and outputs using the Eurorack -5V to +5V standard
DC coupling allows audio ins and outs to be used as control voltage connections
MIDI input and output via 3.5mm TRS minijacks
Board design allows mounting in Eurorack while exposing the Teensy
Built-in controls enable users to create a fully functioning product:
One push button
10 demo Sketches include sample code for filtering, reverb, and VCO.
Jesse Brockmann built an autonomous rover for the SparkFun AVC where’s he’s competed for the last 4 years, winning in 2016 and 2017.
Jesse started working on his first rover in 2011 and finished it in 2014 to compete in the SparkFun Autonomous Vehicle Competition. He offers some great advise for people helping to build their own. He says the most important parts are the brains, his uses a Teensy 3.5, the Inertial Measurement Unit (IMU), and the RPM sensor. Another important consideration is the base platform. Jesse uses a 4×4 platform with a low center of gravity.