IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 1/17 Intelligent backplane concept D. Bandic, J. Kundrata and A. Baric University of Zagreb IMOLA Final Workshop

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 2/17 Outline Intelligent Backplane (iBackplane) hardware design Software for iBackplane iBackplane controlling Conclusion

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 3/17 iBackplane hardware design System based on microcontroller LPC1114 OLED driver  DC/DC converter – LT3502 – BUCK, 2.2 MHz  Planar inductor design  PWM controlled OLED current DALI interface  Individual control of the OLEDs (addressing)  Enables brightness control Human interface  3 IR LEDs & optical sensor for the gesture sensing  Microphone

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 4/17 iBackplane hardware design – PCB block placemant iBackplane PCB top iBackplane PCB bottom

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 5/17 iBackplane hardware design – PCB block placemant Human interface - postion on top layer Electronic part on bottom layer

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 6/17 Software for iBackplane DALI software  Based on DALI SDK 1.0 (software for DALI slaves from NXP)  Short addresses for individual control of the OLEDs  Adjustable frequency of the PWM signals  255 steps for the brightness control Human interface (designed by Jerone Schram from TNO)  Based on I2C communication  The ability to define different gestures according of the application (IR LEDs & optical sensor)  Microphone for sound detection

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 7/17 Simplified software execution flow Software based on FreeRTOS Two separat processes generating DALI commands All processes sharing the same queue

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 8/17 iBackplane controlling DALI-Software-Tool for ABB i-bus® KNX-DALI:  Basic functionality of KNX-DALI established  OLEDs can be turned on and off (no other options available in this tool) ETS 4 (Engineering Tool Software):  still in development DaliController (GUI from NXP):  Controlling the iBackplane with DALI master circuit  Able to test all DALI commands

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 9/17 iBackplane KNX controlling

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 10/17 iBackplane controlling over DaliController

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 11/17 Conclusion Implemented functionalities:  PWM control of OLED brightness in 255 steps (HW & SW)  Gesture sensing (HW&SW)  DALI communication to external world (HW & SW) Imortant features:  Thin profile  Low power consumption Next version of iBackplane – functionalities:  Sound detection (SW)  OLED ageing compensation model (SW)

IMOLA | Final Workshop – Barcelona – | J. Kundrata, D. Bandic and A. Baric Slide 12/17 Thanks!