Ambience Lighting Controller
Setting the mood with RGB LEDs
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
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Component list
Resistors
R1 = 47Ohm 0.5W
R2 = 1Ohm 5W
R3,R5,R6,R8-R14,R16-R19 = 10kOhm
R4,R7 = 3.9kOhm
R15,R20,R21 = 1kOhm
R22 = 47Ohm
P1 = 10kOhm preset, horizontal
Capacitors
C1 = 470µF 16V radial
C2,C3,C10 = 100nF
C4 = 100µF 16V radial
C5,C6 = 15pF
C7 = 470nF
C8,C9 = 1µF 16V radial
Semiconductors
D1,D2 = 1N5400
D3,D4,D6 = 1N4148
T1,T2 = BC547B
T3,T4,T5 = IRL540 (International Rectifier, Newark/Farnell # 8651078)
IC1 = LM7805
IC2 = PIC16F887, programmed, Elektor # 110406-41)
D5 = LED, red, 3mm
Miscellaneous
X1 = 20 MHz quartz crystal
F1 = fuse, 2AT (slow), with PCB mount holder
F2 = fuse, 3.15AT (slow) with PCB mount holder
BZ1 = active (DC) buzzer (with internal oscillator)
RE1 = relay, 12V, 1 c/o contact @ 2A min. (e.g. Finder 40.31.7.012.0000; Newark/Farnell # 1169158)
MOD1 = Elektor USB-FT232R breakout-board (BOB) [1]
S1,S2 = slide switch, angled pins, PCB mount (e.g. C&K OS102011MA1QN1; Newark/Farnell# 1201431)
S3,S4,S5 = rotary encoder with integrated pushbutton (e.g. Alps EC12E2424407; Newark/Farnell # 1520813)
K1,K7 = 2-pin PCB screw terminal block, 5mm lead pitch
K2,K3,K4,K5 = 4-pin pinheader, 0.1'' pitch
K6 = 5-pin pinheader, 0.1'' pitch
LCD1 = LCD 2x16 characters, with backlighting (e.g. Elektor # 120061-71))
J1,J2 = 3-pin pinheader with jumper, 0.1'' pitch
40-pin DIL-socket for IC2
PCB 110406-1 [2]
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