Exchanging data with PSoC Pioneer Kit over serial communication is often useful. The kit CY8CKIT-042 has a built in USB-to-UART utility programmed in the PSoC 6LP device which is used for onboard debugger for the target PSoC 4. It is easy to use. See below.

https://www.element14.com/community/thread/23868/l/psoc-4-pioneer-kit-community-project04-usb-uart-utility?displayFullThread=true