But we like what has done here, and we’re looking forward to more.Ĭontinue reading “MIDI Slide Whistle Shows The Value Of A Proper Fipple” → Posted in Musical Hacks Tagged Arduino DUE, CNC shield, fipple, rack and pinion, stepper, whistle These are far from the first weirdest instruments we’ve seen - a modulin, a Wubatron, and the Drum-Typeulator all fit that bill well. While the humble author is new to fipple-isms, luckily the Hackaday editors see all and know that there two epic hacks featuring fipples to create bottle organs. The crude glissandos of this primitive wind instrument honestly are a little on the quiet side, especially given the racket the stepper and rack and pinion make when queuing up a new note. An Arduino Due with a CNC shield controls the single stepper motor. Air is supplied to the pipe with a small centrifugal blower, while a 3D-printed rack and pinion gear of unusual proportions moves the piston back and forth. The slide whistle is a homebrew version of the kind we’ve all probably annoyed our parents with at one time or another, with a 3D-printed fipple (!) and piston, both of which go into a PVC tube. We couldn’t leave that alone, so we reached out for more information and were happy to find that quickly posted a build log on Hackaday.io as well as the build video below. This lesson comes to us by way of a Twitter post by, which showed off the finished mechanism in a short video and not much else. But we have to confess to never having heard of a “fipple” before finding this interesting MIDI-controlled slide whistle, where we learned that the mouthpiece of a penny whistle or a recorder is known as a fipple. We pride ourselves on knowing the proper terms for everyday things: aglet, glabella, borborygmi, ampersands. Continue reading “Arduino Serial Vs SerialUSB” → Posted in Arduino Hacks Tagged Arduino DUE, Arduino Uno, USB serial, wireshark ![]() We are curious why the packets contain four characters in ’s ATmega Wireshark captures - why not 1, 2, or 10? Is this something that can be controlled by the programmer, or is it fixed by the protocol and/or the FTDI chip? If you have the answer, let us know in the comments below. On any serial connection between two computers, when a virtual USB device is used on both sides of the link (no actual serial signals involved), the serial baud rate is a fictional thing - data transfer speeds depends on USB alone. This concept doesn’t apply only to Arduino boards, of course. On the Arduino Due, the USB connects directly to the SAM3X8E processor. For instance, on the Nano there is an FT232RL between the USB connector and the microprocessor (on an Arduino Uno board, a small ATMEGA8U2 is used instead of an FTDI chip, but the concept is the same). While the Arduino family of boards connect to your computer using a USB virtual serial port, the ATmega ones have an actual serial connection on-board. If you look under the hood, the answer is hiding in plain sight. He sets up an experiment with a simple sketch on both boards and uses Wireshark to evaluate the results.ĭata is sent in the USB packets in groups of four characters on the ATmega-based boards, but the entire string is put in a packet on the Due board. wonders why the SerialUSB() function on the Cortex M3-based Arduino Due is so much faster than Serial() on the Uno or Nano, and shares his observations in this short video. But even as it is, it’s a great tool.Ĭontinue reading “Tricked-Out Breadboard Automatically Draws Schematics Of Whatever You Build” → Posted in Misc Hacks, Tool Hacks Tagged Arduino DUE, continuity, I/O, KiCAD, python, schematic Plus, we can see a path forward to automatic IC probing, and even measurement of passive components too. But this seems like one of those things where getting 80% of the work done automatically and worrying about the rest later is a big win. admits the schematics are crude at this point, and that it’s a bit inconvenient to remove some components, like ICs, from the breadboard first to prevent false readings. A Python program then uses the connection list, along with some basic information about where components are plugged into the board, to generate a KiCad schematic. A program runs through each point on the breadboard, running a continuity test to see if there’s a jumper connecting them. The trick is using a breadboard where each bus bar is connected to an IO pin on an Arduino Due. ![]() Thanks to, there is, in the form of the “Schematic-o-matic”, which aims to automate the breadboard documentation process. Then comes the “What have I done?” phase, where you’ve got to backtrack through the circuit to document exactly how you built it. When it comes to electronic design, breadboarding a circuit is the fun part - the creative juices flow, parts come and go, jumpers build into a tangled mess, but it’s all worth it when the circuit finally comes to life.
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