Wireless mcu. In short, you need a Wi-Fi microcontroller (MCU). 4 wireless standards. It provides all features needed for simpler, energy efficient wireless IoT devices, enabling unparalleled battery lifetime. As such, Wi-Fi microcontrollers can be used for bringing otherwise ordinary devices into the realm of the Internet of things. Based on Arm Cortex-M4 and ARM Cortex-M0+ cores. 3 and IEEE 802. ST's STM32WB MCU series features microcontrollers supporting Bluetooth 5. The STM32WB0 MCU series is compliant with Bluetooth® LE and is fully optimized for ultra-low power consumption and excellent radio performance. Wi-Fi microcontroller chips: Our wireless MCU modules, Systems in Packages (SiPs) and SoCs make it easy to add Wi-Fi ®, Bluetooth ®, Zigbee ® and other technologies to your embedded design. Wi-Fi microcontrollers enable Wi-Fi connectivity for devices so that they can send & receive data and accept commands.