Using the two wire interface bus (TWI, often called “I2C”) most devices on the market can be accessed using generic TWI-VIs.
The user must program data and register access of the device manually.
For a few number of devices the ZBrain-SDK offers direct VI support.

Notes:
- only 100kb standard data rate is supported
- devices on the same TWI bus should share the supply voltage
- no interrupt support

(please check the “zexternal” pallette)

• AD7991/95/99 (4channel AD-Converter 8..12bit)
• Example TWI EEPROM 24MC16

• Example TWI U8-Array with LTC2499 ADC converter
• Example TWI Write Register with PCA9538 DIO extender