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Intelligent LED Dimmer

Intelligent LED Dimmer
LEDs are undoubtedly becoming more prevalent in domestic lighting applications. Low voltage operation and small outlines mean they are used in ever more imaginative places (check out the LED tile cross lamps which fit in grouting channels). The chances are that any LED lighting installation will benefit from a dimmer controller.
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Products
COMPONENT LIST

Resistors
R1,R2,R5,R6 = 1k?
R3,R4 = 220?
R7 = 27k?
R8 = 10k?
R9 = 2.2k?

Capacitors
C1 = 4700µF 6.3V, radial, pitch 5mm, diam. 13mm
C2 = 100nF, MKT

Semiconductors
D1 = BAT42
D2 = LED, red
D3 = LED green
T1 = IRLZ34NPbF
IC1 = PIC18F1320-I/P

Miscellaneous
K1,K2 = 2-way PCB screw terminal, pitch 5mm
K3 = 5-pin pinheader
Wire for wire links
Prototyping PCB ELEX-1 (UPBS-1)
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