Silicon Labs has introduced Blue Gecko which combines its EFM32 Gecko MCU technology with a Bluetooth Smart transceiver on one die combined with the Bluegiga Bluetooth Smart software stack which can transmit +10 dBm or higher output power with its integrated power amplifier and balun. Blue Gecko SoCs are based on the ARM Cortex-M3 and M4 cores and offer 128 to 256kbyte flash sizes and 16 to 32kbyte RAM sizes.