C1	1uF/16V	
C2	220uF/35V	
C3	1uF/16V	
C4	0.022uF/50V	
C5	220uF/16V	
D1	1N4003	
D2	1N4003	
D3	1N4003	
J1	3-pos screw terminal	
J2	3-pos screw terminal	
POT1	200K	
POT2	200K	
Q1	2N3904	
Q2	2N3904	
R1	150K	
R2	51	
R3	4.7K	
R4	4.7K	
R5	4.7K	
R6	4.7K	
R7	4.7K	
RLY1	HK4100F-DC5v-SHG	
SENSOR1	HC-SR04	
U1	LM555C	
U2	74HC123	
U3	LM7805