As I'm a Senior Embedded Software engineer, I have rich experiences in many embedded systems development and IOT(Internet of Things) over 8+ years. Especially, I had developed many projects using the various microcontrollers such as STM32F1/2/3/4/7xx,STM32WB, Wifi(ESP32,ESP8266),GPS/GPRS, Zigbee, FreeRTOS, MSP430, Atmega, and the various Sensors & Actuators.