The STM32L011E4Y6TR is a ultra-low-power ARM Cortex-M0+ based microcontroller unit (MCU) manufactured by STMicroelectronics. It features a 32 MHz CPU, 16Kbytes of Flash memory, and a varying range of peripherals and analog functionalities including DMA, ADCs, UARTs, I2Cs, TIMs, and more. It has low power consumption, wide temperature range, and a wide operating frequency range (up to 32 MHz). Additionally, it supports many development tools, including IAR EWARM, Keil MDK, STM32 CubeMX, and System Workbench. It is designed for a wide range of applications from small, low-power, low-cost devices to more complex, higher power embedded solutions.