Andrew Leung
Jim Lindblom
Elliott Hedman
Jordan McConnell
Paul Steinbrecher
Overall System: Block Diagram
Water Fountain
User Computer
Winamp
Plug-in
Fountain
Head
PCB
Water
Pump
Fountain
Head
Relay
Circuits
(8)
.
.
.
.
(8)
.
.
(8)
.
.
Water
Pump
Fountain
Head
Water
Pump
Fountain
Head
Serial
I/O
ARM 7
Sonars
(4)
Water
Pump
Brass Water Nozzle
… x16 …
½” O.D. Tubing
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.
• Relay – SPST switch
controlled by signal
from processor
• Isolation
• PS710A-1A Optically
coupled solid state
relay
Signal from processor
120 VAC
60 Hz
x8
Signal from processor
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
Winamp
Plug-in
Board
Frequency range of various
instruments
• Winamp/Serial port listener
• Sonar listener
• Fountain and LED control
FreeRTOS
Winamp
Serial Port
Listener
Sonar
Listener
Sonar
Sensors
Fountain &
LED Control
Fountain
LEDs
Electric Zen’s Development
Water Fountain
Software
FreeRTOS
Electrical Hardware
Printed Circuit Board
Mechanical Hardware
Water Network
Sonar Sensors
Processor Circuitry
Pumps
Pumps/Valves
Power Circuitry
Piping System
Winamp Plugin
I/O for Pumps/Sensors
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 List
Component
Circuitry
Sonar Board
Water Fountain
Item
Power and Serial
Cords
STMicroelectronics
ARM7 Proccessor
Electrical Isolation
Chips
ARM 7 Prototype
Board
PCB creation (2 layer)
Headers for PCB
Ultrasonic Sensors
Jebao Little Giant
Submereged Mini
Pump
Actuator Valves
Water Spray Nozzles
Tube to Nozzle
Connector
Tubing to connect
nozzle
Water Container
(prototype)
Water Container (final
Luxeon I LED 1 Watt
Grand Total
Current Funds
Unit
Price
Unit
Qty.
Total
Cost
$12.00
2
$24
$14.25
4
$57
$13.50
2
$27
$77.00
$33
$11
2
4
4
$154
$132
$44
$25
16
$400
$31
$190
$6.50
16
4
16
$496
$760
$104
$2.25
16
$36
$3
16
$48
$10
$20
$5
2
1
32
$20
$20
$160
$ 2482.00
$ 1000.00
• Proportional Valves
• Underwater Lighting
• Outputting sound
• Simultaneous sonar/music control