DS1
U1
R3
Resistance
220Ω
R4
Resistance
220Ω
R5
Resistance
220Ω
R8
Resistance
220Ω
R1
Resistance
220Ω
R2
Resistance
220Ω
R6
Resistance
220Ω
R7
Resistance
220Ω
SW1
SW3
SW2
C1
Capacitance
100nF
U2
J1