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Hacking and controlling toy flyersFinal presentation
Student :Frédéric Blanc
Assistant :Rico Möckel
Professor :Auke Jan Ijspeert
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Motivation
• Global motivation
Hacking vs designing complete flyers
Transform the dragonfly on a research platform
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Outline
• Overview
• Global schematic of the project
• Design of the Printed Circuit Board
• Results
• Conclusion
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Overview
The dragonfly from WowWee Flytech :• Two degrees of freedom flyer
• Flying behaviour change with the battery’s voltage
• No possibility of stabilization
• No sensors, no information on what is happening inside
• Can control only one flyer a time
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Global schematic of the project
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DsPic
Dual H-bridges
Bluetooth
Gyroscope
Step-down regulator
Dual H-bridgesMagnetometer
Accelerometer
Batteries
LDO
LDO
8.4 V4 V
4 V
4 V
3.3 V
3.3 V
PWMI2C
UART
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Design of the Printed Circuit Board
Critical point : the placement of the components
• Effect of every components on the other ones
– Power device
– Magnetic device
• Split of the power supply for the sensors
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Design of the Printed Circuit Board
Top view Bottom view
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Design of the Printed Circuit Board
The new PCB vs the original one :
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Results
Inside the plastic structure
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Conclusion
• Looking back to the goals
– Sensors
– Programming
• The main problems
– Time spent for bluetooth module
– Time spent on the electronics design
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Conclusion
• Some possibilities as future work
– Finishing the programming tasks
– Testing the final flyer
– Working on the sensors
• Stabilisation
• Hovering
– Optimizing the PCB
– New firmware for the multipoint option
– Tracking system (sizing the InfraRed LEDs)
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Thanks for you attention !