Devantech USB to I2C Interface Adapter

Important Note: This product has been discontinued by the manufacturer. Click here to view the R348 unit which is a drop-in replacement for this unit.

This Devantech cross-platform USB to I2C module connects any 100kHz I2C device or bus to a host PC. Self-powered from the USB type-B cable, the module can supply up to 70mA at 5V to external circuitry from a standard 100mA USB port. It also has ancillary digital and analog IOs. When not using I2C, the module can emulate one digital pin input, two digital input/output pins, and two analog inputs with a 10-bit ADC. The module also has on-board pull-up resistors. It also offers support for fast mode (100kHz I2C). This USB to I2Cadapter is a master only, and cannot act as a slave or in a multi-master bus.

Reading and writing an I2C packet generally follows a specific command structure. Often, one will send a structured packet to the virtual serial port with a I2C-USB command, followed by the I2C device address with address registers and informational bytes. Details and examples on usage can be found using the Downloads tab.