Sam DodgeMentored by Dr. Tom SharpElectronics System

Arduino MicrocontrollerProgrammable in C6 Analog Inputs/Outputs, 15 Digital Inputs/OutputsA multiplexer was used to extend the number of analog pins to 13Records time

OpenLog Data LoggerConnects to arduino serial pinsWrites to a standard text file

SensorsHumidity Sensors2 Gas Sensors3 Axis AccelerometerPressure Sensor2 Temperature SensorsGeiger Counter

Camera ControlStill camera takes a picture every 8 secondsVideo camera takes 10 minute video clips to prevent from turning offBoth are controlled by digital pins

Post Launch Data ProcessingFile from data logger can be imported into excel for analysisMATLAB was also used to analyze the results

What went wrong?

ProblemsBattery enclosure on cameraVoltage RegulatorLow batteriesArduino physical reset switchVoltage on arduino pins controlling digital sensors

How can we fix it?

Circuit Board EtchingLess dependant on wire connectionsA more reliable design would use one board rather than twoCant be easily changed

Better CamerasVideo CameraStill CameraSome cameras can be hacked to take pictures by themselves at a set time intervalWith better cameras, they can be isolated from the rest of the system

OtherBetter TestingRedundant Power SystemsIs redundancy worth the extra weight?Complexity vs Reliability

Future AdditionsPhotodiodesMore reliable sensorsDifferent sensorsWorking Video Camera

Thank You

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