ee 296 sophomore project group members: jimyleah castro jeremy chan eric lee sae yoon
TRANSCRIPT
EE 296 Sophomore ProjectGroup Members:JimyLeah Castro
Jeremy ChanEric Lee
Sae Yoon
Project Overview
Facilitate remote monitoring through wireless technology, microcontroller programming, sensor interfacing, and analog to digital conversion
Block Diagram
Circuit Design
Pressure Sensor SubsystemTopics
• Sensor
• Attenuator
• Op Amp
• ADC / MCU
MPX4100A Motorola Pressure Sensor
Reading the Sensor
Analog Digital Converter (ADC)
- Reading
- Calculation
- Limitations
Analog Support Systems Attenuation Circuit
Analog Support SystemsUnbuffered Voltage Input
Analog Support SystemsUnbuffered Voltage Input
Analog Support SystemsEffective Unbuffered Voltage
Divider
Analog Support SystemsBuffered Voltage Input
Analog Support SystemsBuffered Voltage Input
ADC Perspective
Analog Support SystemsBuffered vs Unbuffered Signal
Analog Support SystemsEffective Buffered Voltage
Divider
Analog Support Systems MAX232
Analog Support SystemsPressure Sensor Implementation
Zilog Z8F6421 Microcontroller
• Block Diagram
Zilog Z8F6421 MicrocontrollerADC to Voltage: Multiplier Testing
• Block Diagram
Voltage Reading Accuracy
Design Status
MXP4100A Motorolla Pressure Sensor w/ Analog Support System
GPS
Parallax/Sensirion SHT11 Temperature and Humidity Sensor
MAXStream9 RF Modem - OEM
N/AZilog Z8 Encore! Flash Microcontroller
N/APower Supply – 3.3V, 5V,±8.5V
IntegrationSoftware
Driving
TestedModules
Circuit Design Prototype
What Remains to be Done
• Complete Software Integration of Sensors
• Platform Construction
• PCB Design and Construction
• Data Gathering via Telemetry
• Further Documentation
Challenges Foreseen
• Compatibility Issues
•TIME
Project Schedule Update
Thank You