Adafruit PCF8575 I2C 16 GPIO Expander Breakout
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STEMMA QT/Qwiic breakout for the PCF8575 16-bit I2C GPIO expander. Exposes sixteen quasi-bidirectional I/O pins over I2C with address jumpers and interrupt output support.
STEMMA QT/Qwiic breakout for the PCF8575 16-bit I2C GPIO expander. Exposes sixteen quasi-bidirectional I/O pins over I2C with address jumpers and interrupt output support.
2 grouped connections are listed in the table but omitted from the graphic until individual pins are available.
| Pin | Type |
|---|---|
| VIN | Power |
| 3Vo | Power |
| GND | Ground |
| SCL | I2C |
| SDA | I2C |
| STEMMA QTQwiic | Unknown |
| INT | Signal |
| A0A1A2 | Analog |
| P00-P07 | GPIO |
| P10-P17 | GPIO |
2 grouped connections are omitted from the graphic until individual pins are available.
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