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Using Electromyography-Based Controls to Direct a LEGO Mindstorm Unit. Preston Steele James Brooks Nicholas Gomes. PIC. -timing interface -A/D converter -filtering -EMG algorithm -RS232 serial port. Amplifier. EMG. Bluetooth adapter. NXT. - switch motors on /off - PowerPoint PPT Presentation
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Using Electromyography-Using Electromyography-Based Controls to Direct a Based Controls to Direct a
LEGO Mindstorm UnitLEGO Mindstorm UnitPreston SteeleJames Brooks
Nicholas Gomes
EMGAmplifie
r
-timing interface-A/D converter
-filtering-EMG algorithm
-RS232 serial port
Bluetooth
adapter
-switch motors on/off
-adjust motor speed
PIC
NXT
Signal processingSignal processingRegardless of samples Sample dependent
• 60 hz notch filter
• Bandpass ()
• Fourier
• Range of bandpass
PIC18F4525PIC18F4525• 8 bit microcontroller• Develop timer • Analog to digital
conversion• Signal filtering• Special EMG algorithm• Bluetooth
communication
NXTNXT• 4 input, 3 output• 32 bit microprocessor• Phone app• Sensors
o Light, touch, ultrasonic,
• Own softwareo Icon based drag and drop
LEGO MindstormLEGO Mindstorm
ReferencesReferences• Inman, Verne, J.B. Sanders, and Leroy Abbott. "Observations of the
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• E. Lum, C. Perez, Y . Sun. “On detecting and Adaptive Timing for Electromyogram based control signals.” Proceedings 38th Northeast Bioengineering Conference, Philadelphia, PA, pp.43-44, March 16-18, 2012.
• B. McCarthy, K. Stevens, C. King, E. Chabot, Y. Sun. “Graded Muscle Contractions Determined by Temporal Recruitment.” Proceedings, 39th Northeast Bioengineering Conference, Syracuse, NY, pp. 267-277, 2013.
• Microchip. PIC18F2525/2620/4525/4620 Data Sheet. San Jose, 2008. Print.
• BeagleBone. BeagleBone Black System Reference Manual. Dallas, 2013. Print.