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.
| Specifications | |
| 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.