We've got a new project on Kickstarter, the DIGIO32-I2C Card.
Features
- 32-bit Digital I/O
- Two MCP23017 16-bit I2C I/O Expanders
- Strong library support for all major microprocessors (Arduino, Raspberry Pi, BeagleBone)
- GitHub repo for the DigIO32-I2C Card Arduino library
- EEPROM for board ID and application specific information
- Write Enable jumper protects EEPROM against accidental damage
- I/O Connector is inexpensive/standard DB-37
- ODAS form factor (width is 95 mm)
- 6-32 Mounting holes Host connectors
- Daisy-chain I2C connector
- Address select jumper (2 addresses - can support up to 4 cards)
- Power connector (not required for minimal loads
- Supports 3.3V or 5V signal levels
- Fuse protected power output on DB-37
- I2C Termination jumpers for end of I2C chain