Steve's Junk » sound http://smackaay.com A showcase of Steven Mackaay's stuff Sun, 11 Mar 2012 20:11:37 +0000 en hourly 1 http://wordpress.org/?v=3.3.2 Another pic10f200 project, the Annoyo! http://smackaay.com/2012/01/09/another-pic10f200-project-the-annoyo/ http://smackaay.com/2012/01/09/another-pic10f200-project-the-annoyo/#comments Tue, 10 Jan 2012 03:50:10 +0000 smackaay http://smackaay.com/?p=1092 I had this cool idea for a prank at the office, a device that generate sound every 6 minutes. This device generates 4 different sounds at 6 minute intervals. The idea is that the sounds are short, familiar, difficult to find and infrequent enough to prevent a hunt for the offending noise. This device has been done before and obviously much more professionally by others but it’s fun to make since all you need is 2 caps, a 10f200, a speaker and a battery.


The device itself is dead simple, simply find an old speaker you never use, preferably a small one so that you can drive it from the output pin. Using a small battery like I have there, you could probably let the device run for about 30 days. Here’s the design:

dead simple, once again. Only one output is used on this device, I even disabled MCLR so that there is no extra resistor. Just one cap for decoupling and one cap for producing a larger waveform for the speaker. You can change the cap size if you want, you may want a larger cap for a bit of a smoother wave. So, here’s the pinout and the source code and .hex file

  • GP0,1,3 -> Not connected
  • GP2 (pin 3) -> to speaker

Source and hex: 10f200 annoyo src.zip

Anyways, a couple of notes. This program was written with Oshonsoft basic. Also, it could have been written a bit smaller if I tried but as it stands it takes up 253 of 255 bytes available in flash. :)

Hope somebody has fun with this!

]]> http://smackaay.com/2012/01/09/another-pic10f200-project-the-annoyo/feed/ 0 Programs for generating old school sounds http://smackaay.com/2009/01/31/programs-for-generating-old-school-sounds/ http://smackaay.com/2009/01/31/programs-for-generating-old-school-sounds/#comments Sat, 31 Jan 2009 08:32:56 +0000 smackaay http://smackaay.com/?p=463 Since I’ve started playing around with writing games again, I’ve been interested in old school sounds. These things can be hard to come by these days since a lot of the older sounds were pure square and triangle waves.

I found a couple of programs for creating these sounds. Both are windows programs
.


SUBSYNTH.ZIP
SFXR.ZIP

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So far, they seem to work OK. I’m just keeping them here in case they disappear someday.

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