The Silicon Laboratories EZR32LG230 Wireless MCU family with ARM Cortex-M3 CPU has 41 general purpose I/O pins. It delivers a high-performance, also low-energy wireless solution integrated into a small form factor package. Ultra-low power wireless MCU
Low transmit and receive currents
Also ultra-low power standby and sleep modes
It includes rich set of peripherals including 12-bit ADC and DAC, multiple communication interfaces (UART, SPI, I2C), multiple GPIO and timers
Fast wake-up time
Low energy sensor interface (LESENSE)