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J3
LED8
LED2
connectot
LED1
LED3
LED9
U4
H3
R4
Resistance
3kΩ
R6
Resistance
5kΩ
U2
R5
Resistance
3kΩ
H2
R1
Resistance
1kΩ
H1
H4
D3
D10
D7
D4
C3
Capacitance
220uF
M2
C4
Capacitance
220uF
D2
D6
D8
BZ1
D1
M1
ultrasonic
D9
D5
J2
J1
L298N
U1
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