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Development of a wireless telemetry system for model
rocketry
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To develop a wireless telemetry system for a model rocket using both a microcontroller and a Tri-Axial Accelerometer.
To develop a host PC app which is portable.
The info is passed from the microcontroller to the PC via wirelessly
The host PC program will manipulate the data.
Contingency to be carried out if the wireless connection breaks/out of range.
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1. System Overview1. Rocket Details2. Project Overview3. Hardware Overview4. Setup5. Tri axial Accelerometer6. ToothPIC
2. Final Deliverables1. Hardware2. Software
3. Conclusions4. Questions
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Microcontroller
Individual Sensor Signals for X, Y, Z axis
Base Station
Host PC
Commands
LinkMatic
Bluetooth Transceiver
ToothPIC Device
Telemetry
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The Model rocket can log a 3 minute rocket flight to the flash at 7o samples per second.
An OK command is sent to the back to the Java App to acknowledge memory is full.
A streaming mode was considered if the connection never breaks.
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The output for the accelerometer is still to noisy and can be reduced by implementing a band pass filter in Java.
This eliminates the hardware for the model rocket.
The accelerometer is powered for a coin cell of 3.3V
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ToothPIC is powered by a 3.3V coin cell battery
Hardwired to the accelerometer.Light WeightSmallUnder 100g
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The electronics fits snugly into a model rocket.
Can be powered for a 3 minute flight can obtain data from the accelerometer
Removal of all unnecessary circuitry
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PC Application that can configure the ToothPIC and take in command s from the user.
A Java Application that can graph a set of results
A Java Application that can read or write data to a text
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Developed customised firmware for the ToothPIC
Unnecessary delay before in semester one in obtaining the chip
Lack of actual testing for software and the launch of rocket (should work in theory).
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Any Questions
??