Electric Zen Water Fountain

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Electric Zen Water Fountain
Andrew Leung
Jim Lindblom
Jordan McConnell
Paul Steinbrecher
Elliott Hedman
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Overall System Block Diagram
Water Fountain
User Computer
Water Pump
Fountain Head
Winamp Plug-in
Serial I/O
Water Pump
Fountain Head
PCB
Relay Circuits (8)
ARM 7
. . (8) . .
. . (8) . .
Water Pump
Fountain Head
Sonars (4)
Water Pump
Fountain Head
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Fountain Layout
Brass Water Nozzle
x16
½ O.D. Tubing
WT170 Submersible Pump
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WT170 Submersible Pump

• Water Flow 170 GPH max, adjustable
• Inexpensive, low power
• Voltage 120 VAC
• Current 195 mA
• Power Usage 12 W
• 3 pin plug
• Control AC signal
• to turn on and off.

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Controlling Power to Pump

• Relay SPST switch controlled by signal from
  processor
• Isolation
• PS710A-1A Optically coupled solid state relay

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Signal from processor
x8
x8
Signal from processor
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Sonar Sensors

• Can detect objects at a distance between 2 cm and
  3m away from the sensor
• Can use several of these to control various pumps
  or valves in the system

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Sonar Sensors

• How they work

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Sonar Sensors

• How they work

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Software
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Winamp

• Determine beats from music info
• Perfect beat detection is difficult
• Sends music info to board over serial

Frequency range of various instruments
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• Winamp/Serial port listener
• Sonar listener
• Fountain and LED control

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Electric Zens Development
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Milestone 1 Goals

• Have one pump and one sonar being controlled with
  simple inputs from Demo Board
• Software is ready for the pump and the sonar
• One pump responding to Winamp plug-in
• First revision of PCB complete, populated, and
  tested for functionality

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Milestone 2 Goals

• Water fountain controlled by Winamp plug-in and
  sonars through circuitry on PCB.
• All pumps respond to sonar and Winamp input
• Water fountain structure complete and inside a
  completed plexiglass containment

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Parts List
Grand Total 2482.00 Current Funds 1000.00
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Water Fountain and Beyond

• Underwater Lighting

• Proportional Valves

• Outputting sound

• Simultaneous sonar/music control

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Questions