The CC2540F256RHAR with RF microcontrollers, manufactured by Texas Instruments, is an System-on-Chip (SoC) solution for Bluetooth Low Energy (BLE) applications. This device has on-chip radio, 8051 microcontroller, flash memory, and USB control for the BLE interface. The CC2540F256RHAR is a low-power, low-cost device with 256K Flash memory and 8K RAM. It provides fast connection times, fast packet encryption and data transfer rates, as well as an integrated radio transceiver. This device can also be used for ultra-low power sensor networks and other applications requiring BLE. The CC2540F256RHAR with RF microcontrollers is ideal for low-cost, low-power, and low-volume product designs.