The USB-ISS module is an enhanced version of our low cost USB-I2C module, offering additional functionality at the same low price. Communication to I2C, SPI and serial buses as well as digital I/O control and analog inputs.

Extra features over the USB-I2C are:

• Support I2C at 20khz-1mhz
• I2C + I/O
• SPI mode
• Serial mode (polled port)
• I2C direct – build your own I2C sequence from discrete functions like I2C start
• Bootloader – any future updates can be added
• 3.3v operation
• Mounting holes on PCB