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D2
C4
Capacitance
10uF
C3
Capacitance
10uF
C11
Capacitance
0.1uF
C8
Capacitance
10uF
C6
Capacitance
0.1uF
C10
Capacitance
0.1uF
C2
Capacitance
0.1uF
C1
Capacitance
0.1uF
C12
Capacitance
0.1uF
D1
R1
Resistance
Resistance
Resistance
10kΩ
J1
R6
Resistance
10 Ω
R2
Resistance
Resistance
Resistance
5.1kΩ
R5
Resistance
10 Ω
R4
Resistance
1kΩ
J2
R3
Resistance
Resistance
Resistance
5.1kΩ
R7
Resistance
10 Ω
R8
Resistance
10kΩ
R9
Resistance
10kΩ
PWR
C9
Capacitance
10uF
C5
Capacitance
10uF
Q1
Q2
RST
USB1
U2
TERM
IC3
BOOT
U1
IC1
A RS485 B
D3

ESP32 RS485 (Modbus) Controller Reference Design