Blog

Nexgen: FAA Nav Aid Station Morse Code - Software

phoenixcomm

Ok, I have not been diligent in producing some software. Most of the algorithms that I have seen to do this job are rather slow. I have defined a MAX_LETTERS as a constant of 10 which will give me generous room for my ID Code. Since I like to modular...
- 5 Apr 2020
Buzzomatic - electric ears

paj

Introduction Hard of hearing people face all sorts of problems beyond the basic problems of communicating. One of these problems, which is potentially fatal, is not hearing sounds like someone blowing a horn as warning. I’m partially dea...
- 16 Mar 2020
Relaxing sounds of nature

redcharly

Hi, these are terrible days, in Italy we have been locked in the house for days to avoid the spread of Coronavirus. What's better than designing and building something with Arduino? I thought of creating a small circuit that, based on the values of ...
- 16 Mar 2020
Cellphone controlled Robot

crisdeodates

I did this project back in 2012 as my minor project. This project was inspired by the need for a method to neutralize threats without the direct intervention of humans. That was the time, my country was hard hit by violence which motivated me to deve...
- 16 Mar 2020
...Yet Another Sound Maker: Final Build

ankur608

...Three Projects have been submitted for this month's Project14: Acoustics ..hope you would like it! BUILD(I): The Annoying 'CAPS' Lock Buzzer The CAPS LOCK key is the most annoying key on the keyboard. Majority of the times, you have...
- 15 Mar 2020
...Yet another sound-maker

ankur608

AcousticsEnter Your Electronics & Design Project for a chance to win an $200 Shopping cart of product!Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll GOT BUGGED DURING VIDEO UPLOAD.. PLEASE FOLLOW (...YET ANOTHE...
- 14 Mar 2020
Neotrellis Synth

cypresstwist

This is an Adafruit Neotrellis M4 synth board. It can run Arduino and Circuit Python. I run some audio samples with the following code on it: import time import board import busio import audioio import adafruit_fancyled.adafruit_fancyled as f...
- 14 Mar 2020
It'sa me, Power Supply! (Part 3) - A PSU that Plays MIDI?

Gough Lui

I'll be the first to admit ... perhaps this music from a power supply thing has gotten a little out-of-hand. First, I played a poor rendition of the Mario theme. It was a proof-of-concept, not really intended to go anywhere but perhaps to bring ...
- 12 Mar 2020
Disappointing Ultrasonic Dog Deterrent (DUDD)

kmikemoo

I was tempted not to post this project because it didn't turn out how I wanted. So what changed my mind? I was reading some older posts and one of the community veterans had commented that projects don't always turn out right. Yup...
- 12 Mar 2020
Portable Ultrasonic Object Detector

kedwards@swbell.net

www.youtube.com/watchIntroduction I have wanted to build an ultrasonic object detector ever since I saw a post on one. I have seen several projects on ultrasonic object detectors. However, all of the projects tethered the sensor to a PC. I wante...
- 11 Mar 2020
It'sa me, Power Supply! - Making Music with a PSU? Redux!

Gough Lui

Since I posted my first version of making music with a power supply, it seems there has been some interest in the topic. Unfortunately, not all of it necessarily that positive. I understand ... art is a little bit like that ... sometimes it's hard t...
- 10 Mar 2020
SoundFi - Transmitting Data Using Sound (Ultrasonic Sound)

vimarsh_

I first saw this discussion and it turned out sound was a good choice to transmit data one way>How to transmit data underwater over 40m So, I wanted to make a little project that demonstrates that possibility. The Idea Procedur...
- 9 Mar 2020
It'sa me, Power Supply! - Making Music with a PSU?

Gough Lui

My holiday may be looming, but actually, after seeing the relatively positive response to my last quick project which looked at abusing a Rohde & Schwarz RTM3004’s arbitrary waveform generation features to produce audio, I thought it might...
- 7 Mar 2020
1DUltraBot #3 : Finished (and working!)

dubbie

The 1DUltraBot is now finished, apart from the final 3D printed flat top piece. The circuit diagram is illustrated below and is very simple. One digital output (D2) from the Nano to control the servo motor and two (D6 and D7) to control the ultrason...
- 6 Mar 2020
Synthetic Mains Hum Noise

neuromodulator

Introduction Getting the sample Audio analysis and synthesis Conclusion Introduction The mains hum is generated by alternating current and contains multiple harmonics of its fundamental, which typically is either 50 or 60 Hz. I w...
- 6 Mar 2020
It’sa me, Oscilloscope! - Making Music with a 'scope?

Gough Lui

Even though I’m about to leave on a month-long holiday, I decided to spend a little time to put together a short project for element14’s Project 14 Acoustics Challenge. I was inspired by a Christmas video where someone used an oscillosco...
- 6 Mar 2020
The Pi Rotary

balearicdynamics

After moving and lighting stuff for months, I moved to some, hopefully nice, acoustic/audio project. In this context, the project I am presenting, as well as the next projects I have in mind, are more acoustic projects than pure audio builds. This...
- 1 Mar 2020
1DUltraBot : Part 2 : The Chassis is Moving

dubbie

AcousticsEnter Your Electronics & Design Project for a chance to win an $200 Shopping cart of product!Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll I have been pottering on with the 1DUltraBot for the Acoustic...
- 29 Feb 2020
1DUltraBot #1 : Getting Started

dubbie

AcousticsEnter Your Electronics & Design Project for a chance to win an $200 Shopping cart of product!Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll I have been umming and hahing over what to do for the Acousti...
- 21 Feb 2020
Screaming LM386: An Audio Amplifier with PCB Art

fmilburn

This is the final post in a three part series on how to create an audio amplifier using the classic TI LM386 which has been further adorned with PCB art. The method for transferring art work to a PCB was described in the first post.&nbsp...
- 11 Feb 2020
Boogie Bones

BigG

Introduction Building Boogie Bones - The Hardware Bashing code for Boogie Bones - The Software Introduction I've been dying to do something with this toy for ages, as it's been lying in a box, gathering dust, for a rather ...
- 9 Feb 2020
Nexgen: FAA Nav Aid Station Slant Range Math

phoenixcomm

Acoustics Enter Your Electronics & Design Project for a chance to win an $200 Shopping cart of product! Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll Ok in my last post I made a feeble attempt to...
- 3 Feb 2020
"Amazing Bass" homebrew audio system for a Raspberry Pi Retro-gaming console

robogary

Raspberry Pi retro gaming console with Amazing Bass: a truly unbelievable sonic adventure into outworldly realms My custom portable Raspberry pi retro gaming console is different. It is a show piece for Raspberry Jams and Maker Faires. ...
- 28 Jan 2020
Nexgen: FAA Nav Aid Station Morse Code ID

phoenixcomm

AcousticsEnter Your Electronics & Design Project for a chance to win an $200 Shopping cart of product!Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll Navigation Aids what are they? Nondirectional Radi...
- 26 Jan 2020
Audio project: Agony Box

cypresstwist

This is just something to have disturbing fun with: the Agony Box. I'm using an Adafruit's Circuit Playground Express with some CircuitPython code in it and some freely available WAV files. The WAV files had to be converted to PCM 16-bit Mono and I ...
- 17 Jan 2020