ESP32 series, ESP32-C3, ESP32-S2/S3, ESP8266 are series of chips designed by ESPRESSIF for the Internet of Things (IoT), mobile devices, wearable electronics and other fields. Integrated self-calibration circuit, a small number of peripheral devices, etc., have many advantages such as low power consumption, high integration, small size, and low cost.
Its application markets include: consumer electronics, medical care, fitness sports, industrial automation, smart home, home appliances... etc.

1. Robust Design
ESP32 is capable of functioning reliably in industrial environments, with an operating temperature ranging from –40°C to +125°C. Powered by advanced calibration circuitries, ESP32 can dynamically remove external circuit imperfections and adapt to changes in external conditions.

2. Ultra-Low Power Consumption
Engineered for mobile devices, wearable electronics and IoT applications, ESP32 achieves ultra-low power consumption with a combination of several types of proprietary software. ESP32 also includes state-of-the-art features, such as fine-grained clock gating, various power modes and dynamic power scaling.

3. High Level of Integration
ESP32 is highly-integrated with in-built antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules. ESP32 adds priceless functionality and versatility to your applications with minimal Printed Circuit Board (PCB) requirements.

4. Hybrid Wi-Fi & Bluetooth Chip
ESP32 can perform as a complete standalone system or as a slave device to a host MCU, reducing communication stack overhead on the main application processor. ESP32 can interface with other systems to provide Wi-Fi and Bluetooth functionality through its SPI / SDIO or I2C / UART interfaces.

1. Excellent Performance
ESP8266EX integrates a Tensilica L106 32-bit RISC processor, which achieves extra-low power consumption and reaches a maximum clock speed of 160 MHz. The Real-Time Operating System (RTOS) and Wi-Fi stack allow 80% of the processing power to be available for user application programming and development.

2. High Integration
With antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules in-built at the SoC level, ESP8266 modules can be easily integrated into space-constrained devices, due to their small size.

3. Fully Certified
RF certification: SRRC, FCC, CE-RED, KCC, TELEC/MIC, IC, NCC.
Green certification: RoHS, REACH.
Reliability: HTOL, HTSL, μHAST, TCT, ESD.

4. Wide Range of Applications
ESP8266 modules can work with ESP-AT firmware to provide Wi-Fi connectivity to external host MCUs, or as self-sufficient MCUs with an RTOS-based SDK that can natively run connectivity applications. In both of these operation modes, customers can take advantage of using features like out-of-box cloud connectivity, low-power operation and Wi-Fi security support, including WPA3.

ESPRESSIF dedicated to service and provide online selection tools to facilitate users to select the appropriate model for the required functionality：
http://products.espressif.com:8000/#/product-selector?language=zh