Elliott Hedman

Jim Lindblom Jordan McConnell

Paul Steinbrecher

Andrew Leung

Overall System: Block Diagram

Winamp

Plug-in

SerialI/O

Sonars

(4)

RelayCircuits

(8)ARM 7

WaterPump

WaterPump

WaterPump

WaterPump

FountainHead

FountainHead

FountainHead

FountainHead

.

.

(8)..

.

.

(8)..

User Computer

PCB

Water Fountain

Brass Water Nozzle

½” O.D. Tubing

WT170 Submersible Pump

… x16 …

• 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.

• Relay – SPST switch controlled by signal from processor

• Isolation

• PS710A-1A Optically coupled solid state relay

Signal from processor

120 VAC60 Hz

Signal from processor

x8 x8

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

Sonar Sensors

How they work

Sonar Sensors

How they work

Software

Winamp• Determine beats from music info

– Perfect beat detection is difficult

• Sends music info to board over serial

Frequency range of various instruments

Winamp

Plug-in

Board

• Winamp/Serial port listener

• Sonar listener

• Fountain and LED controlFreeRTOS

Serial PortListener

SonarListener

Fountain & LED ControlWinamp

SonarSensors

FountainLEDs

Electric Zen’s Development

Water Fountain

Software Electrical Hardware Mechanical Hardware

FreeRTOS

Sonar Sensors

Pumps/Valves

Winamp Plugin

Printed Circuit Board

Processor Circuitry

Power Circuitry

I/O for Pumps/Sensors

Water Network

Pumps

Piping System

Containment

Serial Communication

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

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

Parts ListComponent Item

Unit Price

Unit Qty.

Total Cost

Circuitry Power and Serial Cords $12.00 2 $24STMicroelectronics ARM7 Proccessor $14.25 4 $57Electrical Isolation Chips $13.50 2 $27ARM 7 Prototype Board $77.00 2 $154PCB creation (2 layer) $33 4 $132Headers for PCB $11 4 $44

Sonar Board Ultrasonic Sensors $25 16 $400

Water Fountain

Jebao Little Giant Submereged Mini Pump $31 16 $496Actuator Valves $190 4 $760Water Spray Nozzles $6.50 16 $104Tube to Nozzle Connector $2.25 16 $36Tubing to connect nozzle $3 16 $48Water Container (prototype) $10 2 $20Water Container (final $20 1 $20Luxeon I LED 1 Watt $5 32 $160Grand Total $

2482.00Current Funds $

1000.00

• Proportional Valves• Underwater Lighting

• Simultaneous sonar/music control

• Outputting sound