Relays
1 VCC external 3V
2 GND External GND
3 1N relay control interface connects to the IO port of the single-chip microcomputer (active low)
Package List:
Relay module x1
Power : DC
Theory : Voltage relay
is_customized : Yes
Contact Load : Low Power
Model Number : 1 Channel 3V Relay Module Board
Use : General Purpose
Protect Feature : Sealed