ESP32/ESP8266

The ESP32 is a series of low-cost, low-power, single-chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. The ESP32 family uses the Tensilica Xtensa LX6 microprocessor and includes dual-core and single-core variants with built-in antenna switches, RF converters, power amplifiers, low-noise receiver amplifiers, filters and power management modules.

ESP32-S3 Series

32-bit MCU & 2.4 GHz Wi-Fi & Bluetooth 5 (LE)

• Xtensa® 32-bit LX7 dual-core processor that operates at up to 240 MHz
• 512 KB of SRAM and 384 KB of ROM on the chip, and SPI, Dual SPI, Quad SPI, Octal SPI, QPI, and OPI interfaces that allow connection to flash and external RAM
• Additional support for vector instructions in the MCU, which provides acceleration for neural network computing and signal processing workloads
• Peripherals include 45 programmable GPIOs, SPI, I2S, I2C, PWM, RMT, ADC, DAC and UART, SD/MMC host and TWAI^TM
• Reliable security features ensured by RSA-based secure boot, AES-XTS-based flash encryption, the innovative digital signature and the HMAC peripheral, “World Controller”

ESP32-S2 Series

32-bit MCU & 2.4 GHz Wi-Fi

• High-performance 240 MHz single-core CPU
• Ultra-low-power performance: fine-grained clock gating, dynamic voltage and frequency scaling
• Security features: eFuse、flash encryption, secure boot, signature verification, integrated AES, SHA and RSA algorithms
• Peripherals include 43 GPIOs, 1 full-speed USB OTG interface, SPI, I2S, UART, I2C, LED PWM, LCD interface, camera interface, ADC, DAC, touch sensor, temperature sensor
• Availability of common cloud connectivity agents and common product features shortens the time to market

ESP32-C3 Series

32-bit RISC-V MCU & 2.4 GHz Wi-Fi & Bluetooth 5 (LE)

• 32-bit RISC-V single-core processor with a four-stage pipeline that operates at up to 160 MHz
• State-of-the-art power and RF performance
• 400 KB of SRAM and 384 KB of ROM on the chip, and SPI, Dual SPI, Quad SPI, and QPI interfaces that allow connection to flash
• Reliable security features ensured by RSA-3072-based secure boot, AES-128-XTS-based flash encryption, the innovative digital signature and the HMAC peripheral, hardware acceleration support for cryptographic algorithms
• Rich set of peripheral interfaces and GPIOs, ideal for various scenarios and complex applications

ESP32-C3 SoCs

32-bit MCU & 2.4 GHz Wi-Fi & Bluetooth/Bluetooth LE

• Two or one CPU core(s) with adjustable clock frequency, ranging from 80 MHz to 240 MHz
• +19.5 dBm output power ensures a good physical range
• Classic Bluetooth for legacy connections, also supporting L2CAP, SDP, GAP, SMP, AVDTP, AVCTP, A2DP (SNK) and AVRCP (CT)
• Support for Bluetooth Low Energy (Bluetooth LE) profiles including L2CAP, GAP, GATT, SMP, and GATT-based profiles like BluFi, SPP-like, etc
• Bluetooth Low Energy (Bluetooth LE) connects to smart phones, broadcasting low-energy beacons for easy detection
• Sleep current is less than 5 μA, making it suitable for battery-powered and wearable-electronics applications
• Peripherals include capacitive touch sensors, Hall sensor, SD card interface, Ethernet, high-speed SPI, UART, I2S and I2C

ESP8266 SoCs

32-bit MCU & 2.4 GHz Wi-Fi

• High-performance 160 MHz single-core CPU
• +19.5 dBm output power ensures a good physical range
• Sleep current is less than 20 μA, making it suitable for battery-powered and wearable-electronics applications
• Peripherals include UART, GPIO, I2C, I2S, SDIO, PWM, ADC and SPI