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  • Operating Voltage: 3.3V
  • Dimensions: 25.4 mm x 38.1 mm
  • Weight: 10 g (pins soldered)
  • I2C Address:
  • 0x1A default address
  • 0x1B address when ADR1 is short-circuited
  • 0x1C address when ADR2 is short-circuited
  • 0x1D address when ADR1 and ADR2 are short-circuited
  • The product includes 1 I2C connection cable, 10 cm in length.

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Header (Left)

Module PinDescriptionDevelopment Board Pin
3.3V3.3V Supply Voltage3.3V Voltage Output
RESMicrocontroller Reset (Debug)No Connection
XButton No.2 Capacitive Sensing Interface PinAnalog Input Pin
YButton No.4 Capacitive Sensing Interface PinAnalog Input Pin
SWButton No.6 Capacitive Sensing Interface PinDigital Input Pin

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Header (Right)

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

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I2C Communication Connectors

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