Introduction Start Initialization s AmbiLight is an Intelligent Lighting Controller, this is a Yes If mode = 1 Listen for Bluetooth data LDR ADC Conversion No device that receives control information from a number of No If LDR>500 While Command RX inputs and then adjusts light levels based on the No Yes Case = Daylight information received. lighting controller using Bluetooth. A number of modes of Yes each utilising a different energy saving control strategy. 5 Second Timer On Decrease PWM O/P Fade Light Down Else If mode = 3 Yes Read PWM Value from EEPROM No Yes Light Off Else If LDR<250 Yes Check Motion ? Yes Timer Off Case = Recall appearance, and facilitate specific tasks. Wireless control No Write PWM Value to EEPROM PWM O/P to Programming Header strip light PWM O/P to LED driver LDR ADC Conversion If LDR>500 No Yes No within a space can conserve energy, enhance the visual Yes No Mode = 3 Bluetooth Module Light On Timer Off 5 Second Timer On 5V DC Regulator 12V DC Input Lighting Controller PCB Software Flowchart .? GG GJ GK G4 GL GM GN J3 4 K J G ? = ' < ' 8 =33. +? 57+9/ "AB C95 Ā4F%Ā 2 5. F' ; ; =K =4 =L =M ?G ?J ?K ?4 Research: Investigate efficient P= <. 5ĀML?= ?Q ?% .4 lighting control methods that would =3% =N ?3 ?= ?? ?L ?M ?N G3 5! TH +BSH P? <. 5ĀML?= M N =3 = .K ?Q ?% += 57+9+#UV95BD$" 5! TH 5 ' ? +BS: * > ! 0VU! ȀȀ952 > :?K957+9+AB W! A 400 5 6% 7 89 %' 21- +) ###$%&' () * +) ' ' ,+) * -, . /' 012$0. 3 ; <. = +<5<) 7* , 9; > 8 + Android Application utilisation. Design/Build: 1. Develop C code for a PIC %! & ' (( ĀȀ ! " ) *+ ĀȀ! "##"$ ,-+ . -+ / "0"! # # #$%&' ( ) * +) ' ' ,+) * - ,. /' 012$0. 3 .= =3@ effectively optimise energy ?G3' E2 . =3 =3% ; <2=MI JK?3 ; . 8 ) 91 7E+7. Methodology .M G ? ? G J K 4 L =J =G =3@ R= =?' 5+. ) *+ = ' = 5+. = =Q 3 Passive Infrared Module No may also be beneficial to people with mobility issues. 6 ? , / . 9=:?JK39K' +29. 7) MOSFETS Microcontroller ISR Timer Finished Turn Off Light Light On Increase PWM O/P Fade Light Up Slider App - Yes Case = Save No Check Motion ? Yes No The ability to control the quantity and quality of light Light Dependant Resistor Timer Off No Case = Auto Yes Mode = 2 Slider App + Case = Manual operation will be available for selection from the device, Else If mode = 2 No No LED Strip Light Yes Light On Timer Off Yes Case = Motion Else If LDR<250 Mode = 1 No The project will allow an Android device interface with the Yes Light Off No Received ? 1 2 34 Ā56 7, 8 8 , 191 2:34 microcontroller utilising MPLABX IDE. 2. Simulate operation of hardware and software utilising Proteus 8. Circuit Diagram Results/Conclusions 3. Develop Android mobile application utilising MIT App 1. Microcontroller based lighting controller with Android App interface. Several Inventor. modes of operation available from the user interface - light level dimming, occupancy detection, and light level dependant switching available. 4. Build prototype and debug hardware and software. 2. Software simulation confirmed circuitry operated as intended and allowed initial testing and development of C code. 3. Hardware Testing included operation of sensors, PWM dimming and communication with an Android device using EUSART communication. 4. Development of additional features including second dimming channel and the ability to save preset levels to EEPROM from the user interface. The project allowed the knowledge gained on the course to be applied in a practical application. I found the project was an excellent way to further develop Android APP Constant Voltage Constant Current LED Strip Light LED Driver Constant Current LED Downlight my skills and I believe the objective to build a lighting controller was successful. Constant Voltage LED Driver Android Device Bluetooth Communication LDR PIR HC 05 Bluetooth Module PCB Including Microcontroller & Sensors PWM O/P to LED Driver PIC 18F4520 Microcontroller High Level Design Hardware Build in Progress Frank Carr frankxcarr@gmail.com +353 87 1223598 59 Final Hardware Build