IBM - CVUT Student Research Projects Remote Control of a Furby Toy with Bluetooth Tomáš Kunc...

IBM - CVUT Student Research Projects

Remote Control of a Furby Toy with Bluetooth

Tomáš Kunc ([email protected])


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Project goals• Controlling Furby toy

via Bluetooth

– Implement Free2Move F2M03AC2 Bluetooth module

– Control Furby movements from PC

Furby monster without coat


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What is Free2Move F2M03AC2 Bluetooth module ?

• High integrated Bluetooth module.– Main features:

Integrated antennaUART interface (serial port

communication)Analog and digital (PCM)

voice interface for up to 3 simultaneous voice channels

BT data stream divided into Wireless UART data and SCO channels (audio).

Bluetooth channeldata

Audio SCO


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Solution architecture

FurbyPC with Bluetooth dongle

Bluetooth


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What has changed from the last project presentation ?

• Beta version of Furby firmware have been created.– Written in C programming language– Runs at 8-bit microcontroller Atmel ATmega8.– Controls Furby movements - driving motors to correct

position.– Commands are transferred to furby via Bluetooth serial

port.• BT communication board which I designed in the last part of

the Furby project was used to interface microcontroller with BT serial port. This solution is temporary. BT module will be implemented on the final Furby board .


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Current firmware capabilities

• Receives commands sent from pc via BT serial port.

• Operates motors that drive legs, mouth, head.

• Allows motion speed control.


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Furby commands

• Commands are sent as bytes of data through serial line.• Each command specifies motor number, speed, direction and

target position.• When command is completed acknowledge is sent back to

PC.• Commands are queued - there are 2 FIFO command queues

(one for each motor). This allows to send up to 20 commands to every motor at one moment. Commands are then processed sequentially. This also handles Bluetooth data transfer instability, because there isn’t critical timing (no critical synchronization issues between PC and Furby toy)


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Furby block schema

microcontrollerrunning furby firmware

Free2Move BT module

wired serial interface

motor 1 motor 2

Feedback from position sensors

touch sensors

wireless BT interface


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What needs to be done?• Some new features have to be be added to the

firmware.– Interface with Furby touch sensors and

scanning their status.– Implement new commands which will give

information about furby status.

• Final circuit board (PCB)– Integrate Free2Move BT module + microcontroller and

other support circuits (stabilized power supply, etc…)

– Implement BT module audio interface.


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Furby project

Exerimental circuit board

BT communications board, BT receiver

(I have designed in the previous part of my project)

Furby


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Possible utilizations

• Presenting functionality of BT modules

• Showing possibility of interactive remote control robotic machine via Bluetooth

• Interaction human with computer through Furby


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Conclusion

What is done:• BT communication board (have been mentioned

in last project presentation)• Furby beta firmware• Experimental prototype circuit board

What is to be done:• Finish the Furby firmware• Design final version of the circuit board


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Thank you for your attention…

IBM - CVUT Student Research Projects Remote Control of a Furby Toy with Bluetooth Tomáš Kunc...

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