EE 296 Sophomore Project Group Members: JimyLeah Castro Jeremy Chan Eric 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 Subsystem Topics 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 Systems Unbuffered Voltage Input
Analog Support Systems Effective Unbuffered Voltage Divider
Analog Support Systems Buffered Voltage Input
Analog Support Systems Buffered Voltage Input ADC Perspective
Analog Support Systems Buffered vs Unbuffered Signal
Analog Support Systems Effective Buffered Voltage Divider
Analog Support Systems MAX232
Analog Support Systems Pressure Sensor Implementation
Zilog Z8F6421 Microcontroller Block Diagram
Zilog Z8F6421 Microcontroller ADC 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/A Zilog Z8 Encore! Flash Microcontroller N/A Power 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