Hi-Link HLK-LD1115H-24G - Module Appearance and Interface

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2. Module appearance and interface
Pin interface definition:(2.54mm pitch pinheader connector isrecommended for the interface)
Pin
Name
Remark
1
VCC
Vlotage 5V power supply
2
GND
Ground
3
VO
Induction output pin (optional)
4
URX
TTL serial receive
5
UTX
TTL serial transmission