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U2
R1
Resistance
400 Ω
C3
Capacitance
10uF
C1
Capacitance
1uF
U4
PS2
K1
RST
ACL
COM
ACN
3V3
12V
RELAY
12V
ACN
RELAY
COM
ACN
ACL
3V3
U1

ESP32-H2 Relay Board