Intelligent Presence Simulator

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Materials
Component list
R1 = 1kOhm 500mW
R2 = 4kOhm7
R3 = 560Ohm
R4,R6 = 10kOhm
R5 = 7kOhm5
R 7 = LDR
R8 = 470kOhm to 1 MOhm
P1 = 470 kOhm potentiometer
Capacitors
C1 = 470µF 25V
C2 = 10µF 25V
C3 = 1nF5
C4 = 10nF
Semiconductors
D1,D2 = 1N4004
D3 = diode zener 4V7 400 mW
LED1 = LED, red
D4 = 1N4148
T1 = BC547
IC1 = PIC12C508, programmed, see Downloads
Miscellaneous
RE1 = relay, 10A contact
S1 = 1-pole 3-way rotary switch
F1 = fuse 100 mA
TR1 = Mains transformer 2x9 V, 1.2 -3 VA
4 PCB terminal blocks, 5 mm lead pitch
5 solder pins
PCB, ref. 080231-I from www.thepcbshop.com
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