powerpoint templates page 1 powerpoint templates android multi-meter (amm) senior design i final...
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![Page 1: Powerpoint Templates Page 1 Powerpoint Templates Android Multi-Meter (AMM) Senior Design I Final Presentation](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bfb81a28abf838c9f0f3/html5/thumbnails/1.jpg)
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Page 1Powerpoint Templates
Android Multi-Meter (AMM)
Senior Design I
Final Presentation
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AMM Team Members
Team LeaderElectrical Engineer
• Design• Hardware• Analog Readings
Computer Engineer
• Website• App Programming• PIC Programming
Adviser: Dr. Sherif Abdelwahed
Chris Parker
Daniel Hosler
Justin Taylor
Computer Engineer
• Website• App Programming• PIC Programming
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Outline
• Problem• Solution•System Overview• Constraints
• Technical• Practical
• Prototype• Evaluation• Future Work•Questions
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Section 1
Problemand
Solution
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Problem
Most multimeters do not give you the ability of remote viewing. None of these multimeters enable Android devices as the screen.
Our market is users with Android devices with a job or hobby that involves electronics.
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Solution
The AMM will allow users to take electrical readings from a distance that may either be more convenient or safer.
The AMM will take readings in several ranges of:
- Voltage - Capacitance
- Resistance
- Current
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What is the AMM?
• The user will use leads to take a reading of the electrical system of interest
• The reading will be read into the microprocessor and sent to the wireless module
• The wireless module will then send the information to the Android application which displays the result on the phone
AMM
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System Overview
Power Supply
BluetoothRN-41
Leads
Pic24
AndroidApplication
Max134
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Section 2
Technical and PracticalConstraints
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Technical Constraints
Name Description
Measurement
AC Voltage, AC Current, DC Voltage, DC Current, Resistance, Diode Check, Capacitance with ±2% of Range and ± 2 Counts
Wireless Comm. 20’ minimum range
Battery Life 10 hours
Data LoggingMaximum Sample Rate: 20 Hz On Board Memory: 32kB Flash
DisplayDisplay data with needed prefix and decimal places
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Practical Constraints
The AMM application software will be regularly updated
• Compatible for future devices
• Longevity of usefulness
• Fix bugs
• Add functionality
Sustainability and Maintenance
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Practical Constraints
Economic and Cost
The AMM will use cheaper hardware components than competitors.
• The AMM will rely on the users personal display and not provide its own
• The AMM will use an Android application that is less expensive for development
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Prototype
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Prototype
MAX134 DMM Chip
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Prototype
RMS to DCConverter
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Prototype
PIC24HJ128GP502μController
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Prototype
RN-41 Blue-Tooth Module
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Prototype
Capacitance Test Circuit
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Evaluation
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Evaluation
Software
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Coding
Writing to the MAX registers
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Coding
Reading to the MAX registers
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Testing
Reading from the MAX 134
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Testing
Transmitting MAX 134 Data
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Testing
Debugging with RealTerm
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Software
Android Application
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Software
Android Application
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Testing
Sending a Command
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Evaluation
Hardware
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DC Voltage
DC Voltage Test Circuit
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DC Voltage
DC Voltage Test Data
Range Error0.4000V 100.5 mV 100.1 mV -0.4%0.4000V -115.5 mV -114.5 mV -0.9%4.000V 1.000 V 0.994 V -0.6%4.000V -1.000 V -1.013 V 1.3%40.00V 10.03 V 10.11 V 0.8%40.00V -10.03 V -9.98 V -0.5%300.0V 124.3 V 126.1 V 1.4%300.0V -124.3 V -124.1 V -0.2%
Expected Value Measured Value
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DC Current
DC Current Test Circuit
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DC Current
DC Current Test Data
Range Error1.000A 204.7 mA 204.3 mA -0.20%
Expected Value Measured Value
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AC Voltage
AC Voltage Test Circuit
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AC Voltage
AC Voltage Test Data
Range Error0.4000V 211.6 mV 86.7 mV -59.0%4.000V 2.824 V 2.58 V -8.6%40.00V 20.25 V 20.4 V 0.7%300.0V 149.6 V 149.9 V 0.2%
Expected Value Measured Value
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AC Current
AC Current Test Circuit
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AC Current
AC Current Test Data
Range Error1.000A 190.1 mA 182 mA -4.26%
Expected Value Measured Value
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Resistance
Resistance Test Circuit
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Resistance
Resistance Test Data
Range Error400.0Ω 100.0 Ω 101.1 Ω 1.10%4.000kΩ 0.997 kΩ 0.988 kΩ -0.90%40.00kΩ 10.03 kΩ 9.88 kΩ -1.50%400.0kΩ 100.6 kΩ 100.8 kΩ 0.20%4.000MΩ 1.019 MΩ 1.015 MΩ -0.39%
Expected Value Measured Value
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Capacitance
Capacitance Test Circuit
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Capacitance
Capacitance Test Data
Error
47.7 µF 47.6 µF -0.21%
Expected Value Measured Value
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Range
Sustained Connection Range
60 Feet
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Battery
Battery Life
Normal Operation - 15 Hours
Idle Conditions - 35 Hours
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Future Work
• Correct AC measurement errors
• Improve capacitance resolution
• Implement auto range features
• Final PCB Design
• Packaging
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Android Multi-Meter (AMM)
Questions?
• Senior Design I• Final Presentation