From f0bd457ec090359e581db9120b66ddfede0dcad6 Mon Sep 17 00:00:00 2001 From: bnewbold Date: Sun, 6 Sep 2009 12:17:09 -0400 Subject: added webpage --- sqrls.html | 154 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 sqrls.html diff --git a/sqrls.html b/sqrls.html new file mode 100644 index 0000000..50352f3 --- /dev/null +++ b/sqrls.html @@ -0,0 +1,154 @@ + + +virtual sqrls hardware + + + +

+virtual sqrls hardware

+bnewbold, git repository
+ +

Basic Design

+Arduino microcontrollers output audio via PWM method (see links). Signal is +amplified by audio amp then output to speaker over variable length cables. 4 +potentiometers per board allow adjustment of volume, timing, and two +software adjustments. There are two amps/speakers for each arduino and 5 +arduinos total. Each board/package is powered by a 5v wall wart. + +

Notes

+

+Arduinos and protoboards were chosen in the interest of time and reusability; +the cost will be about $37 each for those units (could drive at least 4 +speakers each if they had to?); chosing cheaper components like PICs and +plain grid boards could bring the cost down to $10-15 but would require a lot +of design, assembly, debuging, and would not be as easily reused afterwards. +

+The number of power supplies could be reduced if we ran power wires between +the units. +

+The amount of "power wire" will depend on the physical situation, but this +should be super cheap and we could get more at a hardware store last minute. +

+This all assumes tools and consumables like solder are availble (I have plenty). + +

Parts list

+

+N is the number of distinct microcontoller "units" (5?); M is the +number of speakers with distinct outputs (5?). I say +1 on the cheap stuff in +case something breaks or gets lost. + + + + + + + +
How manyWhatSpecific PartCost Each (rounded)From where
5 + Motion Sensors + Parallax PIR Sensor Module
#555-28027 + 		+ Mouser
(already purchased) + +
5 + Arduino Pro Board + 328 5v/16MHz DEV-08943
(sparkfun version) + 		$20 + Sparkfun (link) + +
5 + Arduino Protoboard + DEV-07914
(sparkfun version) + 		$17 + Sparkfun (link) + +
5 + Straight Pin Headers, 40x1 + PRT-00116
(sparkfun version) + 		$2.50 + Sparkfun (link) + +
1 + FTDI-USB Breakout (Programming) + DEV-09115 + $14 + Sparkfun (link) + +
5 + Wall Power supply (AC to 5v DC) + EPS050100-P5RP + $7.25 + Digikey(link) + +
??ft + Power wire (high gauge) + + + Radioshack? + +
10 + Speaker + 4ohm 3watt
COM-09149 (sparkfun) + 		$2.50 + Sparkfun (link) + +
11 + Audio Amp (5v) + 5w stereo 12pin
Panasonic AN17822A + 		$2.25 + Digikey (link) + +
21 + Adjustment Potentiometers + 10k Ohm through-hole mount
EVN-D8AA03B14 + 		$0.40 + Digikey (link) + +
3 + Rolls of stranded wire + 25ft each of Black, Red, White, 22awg + $2.50 + Sparkfun (link) +
+

Total cost estimate: $300 + +

Useful Links

+ + +

Helpful Emails

+haha there are none! + + + + + + -- cgit v1.2.3