From helpnetsecurity.com
Bruschetta-Board is a device for all hardware hackers looking for a fairly-priced all-in-one debugger and programmer that supports UART, JTAG, I2C & SPI protocols and allows to interact with different targets’ voltages (i.e., 1.8, 2.5, 3.3 and 5 Volts!).
A handy feature of Bruschetta-Board is the fact it mounts level shifters. Whether you have to use it for UART, JTAG, SPI, or I2C… if your target is working at 1.8V, 2.5V, 3.3V, or 5V… the board is here to help you. You just need to move the level shifter jumper to the target’s voltage BEFORE connecting it to the device and the PC.