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OSEPP I²C Expansion Shield for Arduino

Regular Price: $27.99
Regular Price: $27.99
Regular Price: $27.99
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Equivalent Part Numbers: 2760448   |  276-0448  |  276-448

The OSEPP I²C Expansion Shield is an Arduino-compatible daughter (extension) card. This shield provides easy interconnection with other I²C devices, such as the OSEPP Sensor Modules family.

Additionally, this shield integrates the PCA9546A I²C switch from Texas Instruments that provides 4 additional isolated I²C buses to enable the use without collisions of multiple I²C devices with same I²C addresses. The main I²C bus and each of the 4 additional I²C buses are brought out to a robust latchable 4-pin connector that allow easy plug and play functionality.

  • 100% Arduino compatible.
  • 1-to-4 I²C switch to provide four isolated I²C buses.
  • Provides pass through of all Arduino I/O, reset button and ICSP connector.
  • Stackable with up to eight other Arduino shields.
  • Works with both 3.3V and 5V boards.

Catalog No. 2760448
Mfg. Part No. I2CSHD-01
I²C Addresses (7-Bit) 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77
Dimensions 53.3 × 66.6mm
Power Consumption 0.1mW
UPC 899262000169


Connector Pin Definitions
Pin 1 Power
Pin 2 I²C Data
Pin 3 Ground
Pin 4 I²C Clock


Technical Schematic (PDF)
PCA9546A Technical Data Sheet (PDF)

⚠️ WARNING: CHOKING HAZARD: Small parts. Not for children under 3 yrs.

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