PSoC® 4 is a programmable embedded system controller with an ARM® Cortex™-M0 CPU. It combines programmable analog, programmable interconnect, user-programmable digital logic, and commonly used fixed-function peripherals with a highperformance ARM Cortex-M0 subsystem.

The PSoC 4xx7-BL family is the first member of the PSoC 4 architecture which supports Bluetooth. This is upward compatible with larger members of PSoC 4.