MICROCONTROLLER BASED IR FOR HOME APPLICATION

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  • hello sir ,,can we use this ckt as duplicator which stores decoded ir signal and transmit with ir transmitter
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  • hello sir
    i am karamjit singh..
    please send me circuit diagram with programme of home application

    thank you
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  • MICROCONTROLLER BASED IR FOR HOME APPLICATION

    1. 1. Microcontroller Based IRRemote Control Signal Decoderfor Home Application JAHIR HUSSAIN.M- 1611110027 1st YEAR MTECH -PED
    2. 2. ABSTRACT Design and implementation of an infrared (IR) remote control signal decoder used to various home control applications. Designed remote controlled fan regulator and ON-OFF power supply switch. Enables the user to control a fan regulator and operate the mains power switch from about 10 meters away.
    3. 3. DEVICE HARDWARE DESIGN
    4. 4.  The device consist of blocks namely IR transmitter, IR receiver, microcontroller as decoder, driver circuit. IR pulses convert into electric pulses using IR sensor and given to microcontroller. Electric pulses change into data byte using zero crossing detector and on chip timer and interrupt. Data bytes are used to take control decisions.
    5. 5. Pin Configurations
    6. 6. IR remote transmitter
    7. 7. Zero crossing detector Zero crossing detector generates pulses for every zero crossing of the input AC signal. Pulses are fed to the microcontroller interrupt pin through the opto-coupler. The opto-coupler is used for the isolation of the high voltage AC to the low voltage DC supply at the microcontroller side. Microcontroller was interrupted for every zero crossing which triggers the
    8. 8. Interfacing diagram
    9. 9. Microcontroller unit asdecoder Microcontroller’s on-chip peripherals like programmable I/O port, Timer and External Rest, RC-oscillator, EEPROM, Power On Reset (POR). TSOP-1740 receiver module is used to receive the IR signal form transmitter Present system to increase or decries output AC voltage the function keys used are ‘Volume +’ and ‘Volume -’ on IR remote transmitter and to ON-OFF AC mains switch ‘Power’ function key
    10. 10. Load Driver Power control device used triac BT136 being least expensive power switch to operate directly on the 110/240V mains. It withstand a maximum load current 5A. output power is controlled by the phase delay of the TRIAC drive. delay is referred to the zero crossing of the Line voltage detected by Zero crossing detector circuit. The control output from microcontroller port pin is given to opto-coupler MOC3031M to trigger the triac.
    11. 11. Flow chart
    12. 12. The display circuit Device provides 10 steep speed controls from 0 to 9. Current speed is displayed on a LCD module. The LCD module has on- board display controller. The display unit is composed of 16 x 2 lines. The LCD is configured in 4-bit mode with read-write control (WR) pin grounded.
    13. 13. PROGRAM ORG 0000H CLR AHERE JNB P3.0 ; HERE MOV TMOD, #20H MOV TH1, #FDH MOV SCON, #50h MOV P3, #FFh MOV A, SBUF MOV R0, A CJNE R0, #10h ; HERE1 MOV R0, 255h GO MOV TMOD, #10h MOV TL1, #00h MOV TH1, #DCh SETB TR1
    14. 14. AGAIN JNB TF1, AGAIN DJNZ R0 , GO HERE1 CJNE R0, #20h ; HERE2 MOV R0, 255h GO1 MOV TMOD ,#20h MOV TL1, #00h MOV TH1, #EEh SETB TR1AGAIN 1 JNB TF1, AGAIN 1 DJNZ R0 , GO1HERE2 CJNE R0, #30h ; MOV R0, 255h GO2 MOV TMOD ,#30h MOV TL1, #00h MOV TH1, #F7h SETB TR1AGAIN 2 JNB TF1, AGAIN 2 DJNZ R0 , GO2
    15. 15. CONCLUSION IR remote control signal decoder is implemented using microcontroller and its application is successfully demonstrated for home applications. The system is quite cheap, reliable and easy to operate.
    16. 16. THANK YOU

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