The chip ESP32-S2 of the ESP32-S2 series module is equipped with an Xtensa® 32-bit LX7 single-core processor with a working frequency of up to 240 MHz. The chip supports secondary development without using other microcontrollers or processors. The chip has a built-in 320 KB SRAM/128 KB ROM, which can be externally connected to flash and RAM through SPI/QSPI/OSPI interfaces. ESP32-S2 supports a variety of low power consumption working states, which can meet the power consumption requirements of various application scenarios. The chip's unique features such as fine clock gating function, dynamic voltage clock frequency adjustment function, and RF output power adjustable function can achieve the best balance between communication distance, communication speed and power consumption.
The ESP-12K module is a WiFi module independently developed by Essence based on the ESP32-S2 chip. The core processor of the module ESP32-S2 is a highly integrated low-power Wi-Fi system-on-chip (SoC) , Designed for various applications such as the Internet of Things (IoT), mobile devices, wearable electronic devices, and smart homes. ESP32-S2 has industry-leading low-power performance and RF performance, supports IEEE802.11b/g/n protocol, integrates Wi-Fi MAC, Wi-Fi RF and baseband, RF switch, RF Balun, power amplifier, low noise Amplifier etc.