EE 296 Sophomore ProjectGroup Members:
Jeremy ChanJimyLeah Castro
Eric LeeSae Yoon
Project Overview
Te·lem·e·try n. (te'le-m&-trE)The science and technology of automatic measurement and transmission of data by wire, radio, or other means from remote sources, as from space vehicles, to receiving stations for recording and analysis.
Block Diagram
Circuit Design
• Block Diagram
Circuit Modules
• Power Supply (5V, 3.3V)
• Zilog 40 Pin 64KB Flash Microcontroller
• MAXStream9 RF Modems
• Parallax/Sensirion Temperature and Humidity Sensor
• Lassen IQ+ GPS
• MPX4115A Motorola Pressure Sensor
Power Supply, 5V, 3.3V
• Block Diagram
MPX4115A Motorola Pressure Sensor
MaxStream9 RF Modems
• Block Diagram
Parallax / Sensirion Temperature and Humidity
• Block Diagram
Zilog Z8F6421 Microcontroller
• Block Diagram
GPS Module
GPS Module: Trimble Lassen IQ+
• RS-232 Data Layer Protocol
• TTL-level Output (CMOS Compatible)
• 2 Serial Ports for NEMA or TSIP Output
GPS Module: TSIP
• Proprietary Protocol
• Byte protocol implementation required
• Provides product specific information
GPS Module: NEMA 0183
• Standardized GPS Message Formats
• ASCII Output
• Comma Delimited
• Time, Date, Position, Velocity
GPS Module: NEMA 0183Message Format
• $GPGGA,034932.00,2116.3469,N,15748.0176,W,1,03,2.38,00090,M,004,M,,*75
• $GPVTG,000.0,T,348.7,M,000.0,N,000.0,K,A*2B
GPS Module: NEMA 0183Message Translated
• Time/UTC of position fix: 03:49:33.00 GMT (5:49PM HST) Latitude: 21 16.3470 North Longitude: 157 48.0175 West Solution Quality: GPS Fix (3 Satellite)
GPS Module: AccuracyGPS Module: Accuracy
GPS Module: PrecisionGPS Module: Precision
Circuit Design Recap
• Block Diagram
Circuit Design Prototype
Design Status
Modules Purchased Built Tested
Power Supply – 3.3V, 5V
Zilog Z8 Encore! Flash Microcontroller
MAXStream9 RF Modem - OEM
Parallax/Sensirion SHT11 Temperature and Humidity Sensor
GPS Functional
MXP4115A Motorolla Pressure Sensor
Z8 Encore Development Kit
Sample Program
What Remains to be Done
• Circuit Construction
• Sensor Interface Testing
• Platform Construction
• PCB Design and Construction
• Data Gathering via Telemetry
• Documentation
Nice to Haves
PCB Design and Construction
Challenges Foreseen
• Defects
• Funding
• Shipment Delays
• Compatibility Issues
• Time
Project Schedule Update
Thank You
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