Hi-Link HLK-LD1115H-24G Manuale d'uso - Pagina 4

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2. Module appearance and interface

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