The September 2018 issue (#338) of Circuit Cellar shows building a “Channel Element” to replace crystal oscillator modules which are no longer available at specific frequencies.

Check out Circuit Cellar and pick up a copy of issue #338 for full build details!

Rattus_Metallum made a cool DIY MIDI foot controller.

He needed something to control scripted chord progressions in Dreamfoot, an app for free-floating synth pad accompaniment and was inspired by the iRig BlueBoard, but wanted to dumb it down a bit.  He made use of a Teensy 3.2 microcontroller to interpret the switches and send MIDI data over USB. The code for the Teensy was posted by Liam Lacey at Ask.Aduio.

Alexander “Wolf” Griffen designed and built Squidartha, a beautiful interactive burn-bot for Burning Man.

In response to Burning Man Arts request for proposals for Burn-bots to be displayed in The Man Pavillion, Wolf came up with the oceanic themed Squidartha.  He was inspired by the intelligence and curiosity of the squid he’s seen while scuba diving.

The 6’6″ tall sculpture features strips of programable LEDs with nine animation patterns driven by a Teensy 3.2 and the OctoWS2811 library.  It included a control panel of 6 buttons for people to interact with the art with each of the buttons activating a different programming sequence.

Matthew Varas made an impressive GIF Playing LED top hat.

The project was inspired by a robotics competition.  Matthew is a mentor for the team an wanted show how to have some fun with engineering.  The hat uses 4 flexible 16×16 RGB LED panels, a Teensy 3.6, other miscellaneous parts, and LOTS of hot glue.

This imugr gallery has a pretty good write up on the assembly process.

Code for the project is available on GitHub.

Max Elliot was part of Unfolding Humanity, an amazing art installation at Burning Man this year.

This project was built by a team at the San Diego Geometry Lab.  The sculpture is 10′ tall and unfolds to 40′ wide.  It features 26 Teensy 3.2s with OctoWS2811 adapters and NRF24L01 radios.  Mirrors on the inside of the structure create a kaleidoscopic effect.

 

Sebastian Tomczak of Little-Scale, put together this nifty little clockable low frequency oscillator (LFO) with 16 outputs and various divisions, shapes, and phases

This is the prototype of the project

Robert Archer has made an amazingly realistic 737-300 flight sim based on the IXEG 733 and X-Plane

Many Teensy’s are used in this build to preform various functions from simple switch inputs and stepper driver signals to more complex ARINC 429 data output.  This incredible flight simulator is controlled with only 1 PC with 40 USB devices and two 50″ 4k TVs!

Robert has some great videos of the flight sim in action on his You Tube channel, including videos like this one showing a behind the scene look at the sim

This video shows Robert on the sim flying from Las Vegas to Santa Barbara.  It’s hard to believe it’s not a real flight! It’s a long video, but the take off and landing are pretty cool to watch.

 

Chris Rees has made the Megapixel Controller, a DIY pixel controller.

The MegaPixel  is a DMX controller host board.  It features 8 SPI feeds supporting up 32 universes or 5,440 pixels at at least 40 frames per second.  This controller is a great tool for your holiday light show,  LED stage shows, and more.

Code for the project is available on GitHub

The PCBs are a being made available on the MegaPixel lighting website.

Here’s a great video of a holiday light show using the MegaPixel controller

Charlie Williams re-purposed pedals from a 1970s Vicount Bahia organ to turn them into a MIDI controller.

The vintage pedals were turned into controller using MIDI over USB or DIN-5 outputs and has some impressive capabilities.  It’s packaged up into a beautiful custom case making it easily portable.

It was covered by HackaDay here.  You can also read more about the project on this project page.

Code for the project has been published on GitHub.

kbdhog created DIN-Uino, a prototyping and packaging project that makes your Teensy project into a neat, DIN-rail compatible device.

This board design works for the Teensy 3.6 and Teensy 3.5 and brings out all of the I/O pins to a DIN-rail compatible PCB.

Some of the features include:

* Industrial-compatible 24VDC (I’m aiming for a 12-25V safe operating range) power input with 5V/3.3V output. Connections via a 2-pin Phoenix 3.81mm header.

* Room at front edge of PCB for a maximum of 48 pluggable screw-terminals (Phoenix 3.81mm pitch).

* You can use single or double-stacked Phoenix-compatible headers, vertical or right-angle.

* Uncommitted right-angle pushbutton switch. You can wire it to RESET, or use it for some other function.

* 4-layer PCB design, with internal GND and POWER planes for power distribution.

* The POWER plane can be connected to 3.3V (default) or 5V (optional).

* Distributed power-vias allow easy access to the internal GND/PWR planes.

* On-board USB-A(host) or USB-B(device) connector, already wired to the Teensy’s native 5-pin USB header. The USB connectors are positioned at the edge, easily accessible even if an enclosed DIN-mount enclosure is utilized.

* Of course, this DIN-Uino Proto4 board is compatible with the related DIN-Uino mounting hardware and enclosure system.

The Hackaday.IO project page includes a schematic file you can download.