Espressif ESP32 S2 Mini 2 & S2 Mini 2U Module

The ESP32-S2-MINI-2 and ESP32-S2-MINI-2U are versatile Wi-Fi MCU modules with powerful features and a wide range of peripheral interfaces, suitable for applications such as wearable electronics and smart home devices.

The ESP32-S2-MINI-2 uses a PCB onboard antenna, while the ESP32-S2-MINI-2U features an IPEX antenna. Both modules are equipped with 4 MB of SPI flash and are powered by the ESP32-S2FN4 chip. The ESP32-S2FN4 chip is based on the Xtensa 32-bit LX7 single-core processor, running at a frequency of up to 240 MHz. Users can turn off the CPU and utilize the low-power co-processor to monitor peripheral status changes or detect whether certain analog thresholds are exceeded. The ESP32-S2-FN4 also integrates a wide variety of peripheral interfaces for flexible connectivity and control.

Performance Specifications:

• Core: Xtensa single-core 32-bit LX7 CPU, with a frequency of up to 240 MHz
• Memories:
  • 128 KB of ROM
  • 320 KB of SRAM
  • 16 KB of RTC SRAM
  • 4 MB of Flash memory
• Working Voltage: 3 V to 3.6 V
• GPIOs:
  • Up to 37 GPIOs
  • 3 strapping GPIOs
  • 6 GPIOs are required for flash/PSRAM
• Analog:
  • 2 x 12-bit ADC (up to 20 channels)
• Communication Interfaces:
  • 2 I2C interfaces
  • 1 I2S interface
  • 4 SPI interfaces
  • 2 UART interfaces
  • 1 USB OTG interface
• Security:
  • 4096-bit OTP
  • AES, SHA, RSA, ECC, RNG
  • Secure Boot, Flash Encryption, Digital Signature, HMAC module
• Extended Temperature Range: -40 to 85 C

Applications:

• General low-power IoT sensor hub
• General low-power IoT data logger
• USB devices
• Voice recognition
• Image recognition
• Mesh networks
• Home automation
• Smart buildings
• Industrial automation
• Health/medical/caregiving
• Wi-Fi toys
• Wearable electronics
• Retail & catering
• Smart POS applications