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R1
Resistance
Resistance
Resistance
10kΩ
R8
Resistance
10kΩ
R9
Resistance
10kΩ
PWR
RST
U2
BOOT
IC3
C4
Capacitance
10uF
C11
Capacitance
0.1uF
C8
Capacitance
10uF
C6
Capacitance
0.1uF
C10
Capacitance
0.1uF
C12
Capacitance
0.1uF

ESP32 RS485 (Modbus) Controller Reference Design ibga