The ESP32-S Module is a compact, high-performance wireless communication module built around the powerful ESP32S dual-core SoC. It integrates 2.4GHz WiFi, Bluetooth 4.2 (Classic + BLE), 4MB Flash, and an on-board PCB antenna, making it a complete solution for IoT development and embedded wireless applications.

With its rich set of peripherals, ultra-low-power performance, and fully certified RF design, this module is perfect for both hobbyist projects and professional product development.

Key Features

• Built-in ESP32S Dual-Core MCU (up to 240 MHz)
• WiFi 802.11 b/g/n with long-range support
• Bluetooth v4.2 BR/EDR + BLE
• 4MB Flash memory
• High-quality onboard PCB antenna for stable wireless performance
• U.FL connector for optional external antenna
• Low-power sleep modes for battery-powered applications
• All GPIOs available through castellated pins
• FCC & CE Certified Module

Specifications

• Model: ESP32-S Wireless Module
• Processor: Xtensa LX6 dual-core 32-bit MCU
• Clock Speed: Up to 240 MHz
• Flash: 4MB
• Frequency: 2.4 GHz
• Operating Voltage: 3.0 – 3.6V
• Interfaces:
  • UART, SPI, I2C, I2S
  • ADC, DAC
  • PWM
  • Touch sensor GPIOs
• Antenna Options:
  • On-board PCB antenna
  • External antenna via U.FL connector
• Package Type: Castellated edge module
• Operating Temperature: −40°C to +85°C

Applications

• IoT Devices & Smart Home Products
• Smart Switches & Controllers
• Robotics & Automation
• Wireless Sensor Networks
• Wearables
• DIY Electronics & Prototyping