Posts Tagged ‘sound’


Thursday, July 12th, 2018

Anfractuosity published a new build: “Acoustic cryptanalysis is a type of side channel attack that exploits sounds emitted by computers or other devices” Wavecatcher is a simple PCB that makes use of a MEMS ultrasound microphone, in order to capture audio to around 80kHz, with the goal of finding interesting...

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Posted in PCBs | No Comments »

Lo-Fi SES: Hackable 8-bit chiptunes instrument

Friday, November 14th, 2014

Here’s an interesting open source project on Kickstarter the Lo-Fi SES (Sound Entertainment System) by Assorted Wires: The Lo-Fi SES (Sound Entertainment System) makes the process of playing an instrument easy by providing a video game controller interface for the lo-fi instrument. The d-pad allows you to change or record tracks, the...

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Posted in open source | No Comments »

Propeller Halloween pumpkin project

Monday, October 28th, 2013

This project uses a Parallax Propeller Project board with microSD card attached, PIR sensor, LM386 Audio Amp, IRL520 FET and associated discrete components to make an animated Halloween prop. The PIR inside the pumpkin senses motion and when triggered it plays a WAV file from a microSD Card while flashing...

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Posted in Holiday, LEDs, Parallax Propeller | No Comments »

SIDCog v1.3 produces C64 sound on Propeller

Friday, June 28th, 2013

Johannes Ahlebrand has released version 1.3 of SIDCog. This Spin language object emulates the famous sound chip in the Commodore 64 running in a single Propeller cog. The developer reports it's much closer to the 8580 than the 6581 when it comes to filter emulation and combined waveforms. Features include...

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Posted in code, Parallax Propeller, vintage | 1 Comment »

Xmas tree with sound-controlled LED animations

Thursday, December 20th, 2012

[embed][/embed] Sound controlled LED light show for your Xmas tree.  An STM32 microcontroller takes instructions from a PC via Bluetooth and animates the LEDs. This is my Christmas tree, it has over 400 lights (exactly 404) that are all individually controlled by an STM32 microcontroller. The computer plays the music...

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Posted in ARM, Holiday | No Comments »

Jingle bells playing Christmas tree

Thursday, December 20th, 2012

[embed][/embed] Here's a fun project in the Christmas spirit. It's a "Jingle bells" playing card, with the specific notes being signaled via LEDs as they are being played. We have 9 control lines for the LEDs and 1 line for the speaker signal. We want the device to start playing...

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Posted in Holiday | No Comments »

Sound controlled 5x5x5 LED cube

Wednesday, April 25th, 2012

[embed][/embed] This 5x5x5 LED cube uses a microphone and op-amp to react to sound. It's run via an Atmega328P with an Arduino bootloader: ok, it is nothing new and far away from well done.. But its just amazing for me to see it working and i learned quiet a lot...

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Posted in Arduino, DIY | No Comments »

Lil Bang – Sound trigger for cameras

Thursday, February 16th, 2012

[embed][/embed] Viktor made a sound trigger for his DSLR camera: Now that I can take pictures of lightning I decided that I also want to be able to trigger my camera with sound. An op-amp filters and amplifies a microphone signal. The output is fed to a PIC microcontroller that...

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Posted in project logs | 4 Comments »

Milkymist™ open source sound visualizer

Sunday, June 5th, 2011

The Milkymist™ is an open source sound visualization tool. Its said to be one of the fastest open source systems on a chip capable of running uClinux. It features the LatticeMico32 processor core on a Spartan-6 FPGA (XC6SLX45). The project developed from Sebastien Bourdeauduca's Master's Thesis in system-on-chip design. The...

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Posted in FPGA | 1 Comment »

C64 sound on Parallax Propeller

Saturday, May 21st, 2011

The eight-core Parallax Propeller is capable of some pretty amazing things. One use developed by Johannes Ahlebrand is to emulate the famous Commodore 64 sound chip. His SIDcog V 1.0 code object allows the Propeller to accurately emulate an original C64 SID chip. With this code, your Prop can produce...

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Posted in code | 2 Comments »

Recent Comments

  • readybrek: Anyone got a any recommendations for a budget-priced hot air station?
  • William: lol I'm happy to waste 3c for each program/debug cycle... but probably not the time spent soldering a new device down to a proto board!...
  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
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  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...