The STM32L031G4U6 with ARM Microcontrollers is a microcontroller unit (MCU) manufactured by STMicroelectronics. It is an ultra-low-power ARM Cortex-M0+ MCU that features 16 Kbytes of Flash memory and a 32 MHz CPU. The device also supports 32-bit data width, Flash memory latency of 1 clock cycle, SPI, I2C, ADC, and 32 general purpose I/Os. Its embedded SRAM memory is 4 Kbytes, enabling low power consumption. The STM32L031G4U6 with ARM Microcontrollers also features an ultra-low-power RTC for wakeup and 24 general-purpose 16-bit timers, plus three 8-bit timers, as well as a window watchdog timer for added security.