Blog

Nexgen: FAA Nav Aid Station Morse Code - Software

phoenixcomm — Sun, 05 Apr 2020 22:23:32 GMT

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...(read more)

Buzzomatic - electric ears

paj — Mon, 16 Mar 2020 19:46:00 GMT

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...(read more)

Relaxing sounds of nature

redcharly — Mon, 16 Mar 2020 16:54:00 GMT

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 ...(read more)

Cellphone controlled Robot

crisdeodates — Mon, 16 Mar 2020 10:52:49 GMT

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...(read more)

...Yet Another Sound Maker: Final Build

ankur608 — Sun, 15 Mar 2020 15:10:49 GMT

...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...(read more)

...Yet another sound-maker

ankur608 — Sat, 14 Mar 2020 21:32:33 GMT

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...(read more)

Neotrellis Synth

cypresstwist — Sat, 14 Mar 2020 11:52:00 GMT

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...(read more)

It'sa me, Power Supply! (Part 3) - A PSU that Plays MIDI?

Gough Lui — Thu, 12 Mar 2020 06:50:00 GMT

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 ...(read more)

Disappointing Ultrasonic Dog Deterrent (DUDD)

kmikemoo — Thu, 12 Mar 2020 03:56:03 GMT

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...(read more)

Portable Ultrasonic Object Detector

kedwards@swbell.net — Wed, 11 Mar 2020 18:16:17 GMT

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...(read more)

It'sa me, Power Supply! - Making Music with a PSU? Redux!

Gough Lui — Tue, 10 Mar 2020 08:30:00 GMT

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...(read more)

SoundFi - Transmitting Data Using Sound (Ultrasonic Sound)

vimarsh_ — Mon, 09 Mar 2020 11:45:21 GMT

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...(read more)

It'sa me, Power Supply! - Making Music with a PSU?

Gough Lui — Sat, 07 Mar 2020 23:39:00 GMT

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...(read more)

1DUltraBot #3 : Finished (and working!)

dubbie — Fri, 06 Mar 2020 17:03:00 GMT

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...(read more)

Synthetic Mains Hum Noise

neuromodulator — Fri, 06 Mar 2020 13:49:00 GMT

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...(read more)