5.103 € incl. VAT
ESP32-S3-WROOM-1U-N4 - WiFi/BLE/IoT ESP32-S3 module, U.FL antenna connection - ESPRESSIF SYSTEMS
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5.103 € incl. VAT
ESP32-S3-WROOM-1U-N4 – High-Performance AI and IoT Module (U.FL Connector)
The ESP32-S3-WROOM-1U-N4 is a powerful 2.4 GHz Wi-Fi and Bluetooth 5 (LE) module designed specifically for artificial intelligence (AI) and IoT applications. At the heart of the module is the ESP32-S3 SoC, which features a dual-core, 32-bit Xtensa® LX7 processor with a clock speed of up to 240 MHz. This model is equipped with 4 MB of on-board flash memory and a U.FL/IPEX connector for connecting an external antenna.
Key Product Features
- Processor: Xtensa® dual-core 32-bit LX7 microprocessor (up to 240 MHz).
- AI Acceleration: Dedicated instruction set for accelerating neural networks and digital signal processing (DSP).
- Wireless Connectivity: IEEE 802.11 b/g/n (Wi-Fi) and Bluetooth 5 LE (with Mesh support).
- Antenna design: External antenna connector (U.FL connector) for greater range.
- Memory: 384 KB ROM, 512 KB SRAM, 16 KB RTC SRAM, and 4 MB Quad SPI flash.
Technical Specifications
| Parameter | Value / Details |
|---|---|
| Module Name | ESP32-S3-WROOM-1U-N4 |
| Flash Memory | 4 MB (External SPI Flash) |
| Supply Voltage | 3.0 V ~ 3.6 V |
| Dimensions | 18.0 × 19.2 × 3.2 mm |
| GPIO Ports | 36 programmable pins |
| Operating Temperature | Between -40°C and 85°C |
The ESP32-S3-WROOM-1U-N4 is the ideal choice for image recognition, voice control, and other computationally intensive IoT projects, especially when built into shielded metal enclosures where an external antenna is required for reliable communication.

