ESP32-S3-WROOM-1 AIoT WiFi & BLE 5 MCU Module (PCB Antenna)

ESP32-S3-WROOM-1-N4 Module (PCB Antenna) is a compact Wi‑Fi and Bluetooth LE MCU module designed for high‑performance embedded systems, IoT products, and AI‑enabled edge devices. Built around the ESP32-S3 SoC, this wireless microcontroller module integrates a Xtensa® dual‑core 32‑bit LX7 processor running up to 240 MHz with vector instructions that accelerate AI workloads. The onboard configuration includes 4 MB SPI flash, 512 KB SRAM, and 16 KB RTC SRAM, enabling reliable program storage and fast runtime performance. An integrated PCB antenna, extensive peripheral interfaces, and up to 36 GPIOs make this compact computing platform suitable for advanced connected electronics and intelligent sensing systems.

Figure: Pinout

High‑Performance Dual‑Core MCU with AI Acceleration

This embedded wireless computing module features the ESP32‑S3 SoC with a Xtensa® LX7 dual‑core 32‑bit processor operating at frequencies up to 240 MHz. Support for vector instructions and single‑precision floating‑point operations enables efficient AI inference and digital signal processing at the edge. Combined with integrated ROM, SRAM, and external SPI flash, the compact MCU platform delivers reliable performance for machine vision, voice recognition, and intelligent automation workloads.

Extensive Peripheral Integration

Rich peripheral resources allow flexible hardware integration across a wide range of embedded designs. Available interfaces include SPI, LCD and camera interfaces, UART, I2C, I2S, ADC, SDIO host, MCPWM, GDMA, and TWAI® (ISO 11898‑1 compatible). Additional integrated features such as pulse counters, LED PWM, timers, watchdogs, temperature sensors, and touch sensing expand functionality for smart interfaces and industrial monitoring. A full‑speed USB 1.1 OTG interface enables direct USB communication and debugging.

Integrated Wireless Connectivity for IoT Systems

Built‑in Wi‑Fi (802.11 b/g/n) and Bluetooth 5 Low Energy connectivity enable stable wireless communication for connected devices and cloud platforms. The onboard PCB antenna simplifies hardware design while maintaining reliable RF performance. Combined with flexible GPIO routing and low‑power operating modes, this IoT communication module supports smart home electronics, wireless sensors, voice‑controlled devices, and connected control panels.

Common application scenarios include wake‑word detection systems, speech command interfaces, face recognition terminals, smart appliances, intelligent control panels, and connected speaker platforms where compact wireless computing and edge AI processing are required.