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  • Maximum Continuous Current: 1A
  • Operating Voltage: 3.3V
  • Dimensions: 25.4 mm x 25.4 mm
  • Weight: 11 g (pins soldered)
  • I2C Address:
  • 0x0C default address
  • 0x0D address when ADR1 is short-circuited
  • 0x11 address when ADR2 is short-circuited
  • 0x12 address when ADR1 and ADR2 are short-circuited
  • The product includes 1 I2C connection cable, 10 cm in length.

Header (Left)

Module PinDescriptionDevelopment Board Pin
3.3V3.3V Supply Voltage3.3V Voltage Output
RESMicrocontroller Reset (Debug)No Connection
TRIGRelay Trigger Pin via TransistorDigital Output
RLYRelay Trigger PinDigital Output

Header (Right)

Module PinDescriptionDevelopment Board Pin
GNDGroundGround
SDABidirectional Data LineSDA
SCLData Line Clock Synchronization SignalSCL
SWIMMicrocontroller SWIM Communication Protocol (Debug)No Connection

I2C Communication Connectors

Module PinDescriptionDevelopment Board Pin
SCLData Line Clock Synchronization SignalSCL
SDABidirectional Data LineSDA
3V33.3V Supply Voltage3.3V Voltage Output
GNDGroundGround

Terminal

Module PinDescription
NC”Normally Closed” position. Power flows.
COMCommon connection point.
NO”Normally Open” position. Power flow starts when triggered.