PSoC 4 BLE is an easy-to-use, ARM® Cortex™-M0 based, single-chip solution which integrates programmable analog front ends, programmable digital peripherals, CapSense® technology for touch-sensing, and a Bluetooth® LE (Low Energy) or Bluetooth Smart radio. PRoC BLE is an easy-to-use, ARM Cortex-M0 based, single-chip solution which integrates a Bluetooth LE (Low Energy) or Bluetooth Smart radio and CapSense® technology for touch-sensing.