[Ross Fish], [Darcy Neal], [Ben Davis], and [Paul Stoffregen] created “the Monolith”, an interactive synth sculpture designed to showcase capabilities of the Teensy 3.6 microcontroller. The Monolith consists of a clear acrylic box covered in LED-lit arcade buttons. The forty buttons in front serve as an 8-step sequencer with five different voices, while touch sensors on the left…
The Open Panzer Sound Card is a work in progress with the goal of bringing inexpensive, high quality, and open source sound functionality to RC models but especially to tanks using the Tank Control Board (TCB).
The board is actually made up of two components. First, an off-the-shelf PJRC Teensy 3.2 is used as the onboard processor. The Teensy is then plugged into a socket on our custom carrier board that adds a Micro SD card slot (max 32 GB), an additional 16 MB of flash memory, an LM48310 2.6 watt audio amplifier, and headers for external connections.
Some projects need a lot of audio I/O. Maybe you’re doing positional audio sound effects (using the 8-tap delay effect) where ordinary stereo or even 5 channel “surround” isn’t enough? Maybe you’re making the ultimate Eurorack synthesizer module? Or you just want a lot of signals, because you can!
Here’s a board for the Cirrus Logic CS42448 chip, which provides 6 inputs and 8 outputs. All are high quality audio, and all work simultaneously.
PaulStoffregen has shared the board on OSH Park:
A known good reference board for testing the MKL04 chip when building a DIY Teensy 3.6. Refer to this table for the differences between Teensy 3.6 and other models. The soldering friendly LQFP package (at least more friendly than BGA) is used on this board.
Parts Placement Diagram
Bill Of Materials
1 MK66FX1M0VLQ18 1 IC_MKL04Z32_TQFP32 1 USB A Connector 1 USB Mini B Connector 1 Micro SD Socket 1 MCP1825S Voltage Regulator 1 TPD3S014 USB Power Switch 1 Crystal, 16 MHz 1 Crystal, 32.768 kHz 3 Diode, Schottky, B120 1 Capacitor, 100uF, 6.3V 4 Capacitor, 4.7uF 10 Capacitor, 0.1uF 1 Resistor, 100K 2 Resistor, 470 2 Resistor, 220 2 Resistor, 33 1 Pushbutton 2 Test Point, Black
Paul Stoffregen has shared this Teensy audio shield:
PT8211 is an inexpensive 16 bit stereo DAC.
Bob Baddeley writes on Hackaday:
[BrownDogGadgets] built a giant NES controller out of LEGO. The controller is designed in LEGO Digital Designer, which lets you create a virtual model, then get a full list of parts which can be ordered online.
The electronics are based on a Teensy LC programmed to appear as a USB keyboard, and the buttons are standard push buttons. The insides are wired together with nylon conductive tape. LEGO was an appropriate choice because the Teensy and switches are built on top of LEGO compatible PCBs, so components are just snapped in place. The system is called Crazy Circuits and is a pretty neat way to turn electronics into a universal and reusable system.
Here is the controller in action:
Design files and source code for Crazy Circuits modules and projects are available on GitHub:
Find out more in our previous blog post:
My goal is to create a name badge I can wear at conferences and Maker Faires. This was first step to verify the KiCad schematic and KiCad footprints work. I will post more information as the badge project progresses.
KiCad PCB design files:
- repo: pdp7/kicad-teensy-epaper
- commit: 54458f4
- requires KiCad library wickerlib by Jenner Hanni of Wickerbox Electronics for the 34-position FPC connector that the e-paper display plugs into:
The board is shared on OSH Park:
Bill of Materials (BoM)
- uses EPD215 Arduino Library by Jarek Lupinski for his E-paper Teensy Shield
- requires pinout modification:
EPD215 epaper( 17, 16, 14, 15, 13, 11 );