PIC
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Easy Home Control

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Easy Home Control
Happens to everyone! You’re comfortably installed on your sofa watching TV and then all of a sudden you need to get up to turn the lights on or off, or to draw the curtains. Many living rooms these days have a double head-up ceiling light, a floor lamp and an electric window/curtain control. The idea is to control all these devices, and more, with the TV remote control. The circuit designed for maximum indolence in front of the telly is built around the PIC16F84.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor 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. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Resistors
R1= 5-way 10k SIL array
R2-R6 = 1k
Capacitors
C1,C2 = 22pF
C3 = 100nF
Semiconductors
D1= LED, low current
D2-D5 = 1N4148
IC2 = IR receiver module, e.g., TSOP1836, SFH5110 or TK1833
T1-T4 = BC547
Miscellaneous
X1 = 4MHz quartz crystal
IC1 = PIC16F84, programmed, order code 050233-41 (see Elektor SHOP pages or website)
PCB, ref. 050233-1 from The PCB Shop
Re1-Re4 = PCB mount relay, 5V coil, 140mA.
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