Espressif Systems is a semiconductor company known for designing and developing high-performance, low-power Wi-Fi and Bluetooth solutions. It is most recognized for its ESP8266 and ESP32 series of microcontrollers, which integrate wireless communication capabilities, making them popular in IoT applications. These products are favored by developers and engineers for their affordability, versatility, and robust support from open-source communities. Espressif aims to provide innovative solutions that enable smart networking and internet connectivity across a variety of devices and platforms.