Android Multi-Meter (AMM) Senior Design I Final Presentation Powerpoint Templates

AMM Team Members Chris Parker Justin Taylor Daniel Hosler Team Leader Electrical Engineer Design Hardware Analog Readings Computer Engineer Website App Programming PIC Programming Chris Parker Justin Taylor Computer Engineer Website App Programming PIC Programming Daniel Hosler Adviser: Dr. Sherif Abdelwahed

Outline Problem Solution System Overview Constraints Prototype Technical Practical Prototype Evaluation Future Work Questions

Section 1 Problem and Solution

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.

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

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

System Overview Android Leads Application Bluetooth Max134 Pic24 RN-41 Power Supply

Technical and Practical Constraints Section 2 Technical and Practical Constraints

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 Logging Maximum Sample Rate: 20 Hz On Board Memory: 32kB Flash Display Display data with needed prefix and decimal places

Practical Constraints Sustainability and Maintenance The AMM application software will be regularly updated Compatible for future devices Longevity of usefulness Fix bugs Add functionality

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

Prototype

Prototype MAX134 DMM Chip

Prototype RMS to DC Converter

Prototype PIC24HJ128GP502 μController

Prototype RN-41 Blue- Tooth Module

Prototype Capacitance Test Circuit

Evaluation

Evaluation Software

Coding Writing to the MAX registers

Coding Reading to the MAX registers

Testing Reading from the MAX 134

Testing Transmitting MAX 134 Data

Testing Debugging with RealTerm

Software Android Application

Software Android Application

Testing Sending a Command

Evaluation Hardware

DC Voltage Test Circuit

DC Voltage DC Voltage Test Data

DC Current Test Circuit

DC Current DC Current Test Data

AC Voltage Test Circuit

AC Voltage AC Voltage Test Data

AC Current Test Circuit

AC Current AC Current Test Data

Resistance Test Circuit

Resistance Resistance Test Data

Capacitance Test Circuit

Capacitance Capacitance Test Data

Sustained Connection Range 60 Feet

Normal Operation - 15 Hours Idle Conditions - 35 Hours Battery Battery Life Normal Operation - 15 Hours Idle Conditions - 35 Hours

Future Work Correct AC measurement errors Improve capacitance resolution Implement auto range features Final PCB Design Packaging

Android Multi-Meter (AMM) Questions? Senior Design I Final Presentation