This 8-channel USB Logic Analyzer with sampling rates of up to 24MHz provides a good while economic option making it a great tool for quickly diagnosing most communication issues. With the growing ubiquity of UART, I2C, and SPI sensors, logic analyzers are becoming a tool everyone needs in their toolbox or on their workbench.
This analyzer works with both 3.3V and 5V systems (up to 5.25V max and 2.0V minimum on a high logic-level) and is powered via an included mini-B USB cable. The analyzer ships with Female-To-Female jumper wires.
This logic analyzer works with sigrok – an open-source, cross-platform signal analysis software suite.
More information is available on the website of Sparkfun.