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ESP32-WROOM-32U-N16-Ultra-compact ESP32 Module with U.FL Connector-4MB Flash
The ESP32-WROOM-32U-N16 is a powerful, generic Wi-Fi + Bluetooth + Bluetooth LE MCU module from Espressif Systems, designed for a wide range of applications from mobile devices to complex IoT endpoints. Its key differentiator is the integration of a U.FL connector, allowing for an external antenna to be easily connected. This makes it ideal for applications where the device is housed inside a metal enclosure or where optimal RF performance and antenna placement are critical. Based on the ESP32-D0WD-V3 chip, the module features dual high-performance Xtensa 32-bit LX6 CPUs, a rich set of peripherals, and 4 MB of SPI flash memory, all in a compact, certified form factor.
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Description :
The ESP32-WROOM-32U-N16 is a self-contained, FCC, CE, and RoHS certified system-in-package (SiP) module. It provides a complete RF front-end with a U.FL IPEX connector for an external antenna, ensuring robust wireless connectivity. The module is built around the ESP32 series of chips, which are renowned for their low power consumption, high integration, and versatility. It is a perfect solution for a vast array of IoT applications, reducing design complexity, minimizing PCB space, and accelerating time-to-market. The "N16" variant specifically denotes 4 MB (32 Megabit) of embedded SPI flash memory.
Features :
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Core & Performance:
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ESP32-D0WD-V3 dual-core Xtensa® LX6 microprocessor, up to 240 MHz.
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448 KB ROM, 520 KB SRAM.
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Wireless Connectivity:
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Wi-Fi 802.11 b/g/n: 2.4 GHz band, supporting Station, SoftAP, and SoftAP+Station modes.
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Bluetooth: Classic Bluetooth (v4.2 BR/EDR) and Bluetooth Low Energy (BLE).
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Memory:
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4 MB (32 Mbit) of SPI Flash (Integrated in the "N16" variant).
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Antenna Options:
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Primary Feature: U.FL/IPEX connector for an external antenna.
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Peripheral Interfaces:
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34 programmable GPIOs.
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Rich set of peripherals including SPI, I2C, I2S, UART, ADC, DAC, PWM, SD/MMC host, and CAN 2.0.
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Low Power Management:
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Fine-resolution power control with multiple power modes, including Ultra-low-power (ULP) co-processor.
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Robustness & Security:
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Integrated 4-bit/8-bit SPI flash encryption, secure boot, and other cryptographic hardware accelerators (SHA, RSA, AES, RNG).
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Operating Conditions:
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Operating Temperature: –40°C to +85°C.
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Operating Voltage: 3.0 V ~ 3.6 V.
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Applications :
The ESP32-WROOM-32U-N16 is suitable for a vast range of IoT and connected applications, including but not limited to:
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Industrial IoT: Wireless sensor networks, data loggers, industrial automation, and predictive maintenance.
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Consumer Electronics: Smart home devices, smart appliances, Wi-Fi-enabled toys, and voice control systems.
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Wearable Technology: Fitness trackers, health monitors, and smartwatches.
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Audio Applications: Internet audio players, voice processing, and audio streaming devices.
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Networking: Mesh networking, Wi-Fi repeaters, and network bridges.
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Any application requiring an external antenna for optimal signal strength and range.
Technical Specification :
Category Specification Details Module Model ESP32-WROOM-32U-N16 Core Processor Dual-core Xtensa LX6 32-bit microprocessor, up to 240 MHz ULP Co-processor Yes Memory Internal ROM 448 KB Internal SRAM 520 KB SPI Flash 4 MB (32 Mbit) Wireless Wi-Fi 802.11 b/g/n (2.4 GHz) Bluetooth v4.2 BR/EDR and BLE Antenna Type U.FL Connector for External Antenna Peripherals GPIO 34 Interfaces SPI, I2C, I2S, UART, SD/MMC, PWM, ADC, DAC, CAN, Touch Sensor Security Features Secure Boot, Flash Encryption, Cryptographic Hardware Acceleration (AES, SHA, RSA) Electrical Operating Voltage 3.0 V to 3.6 V Operating Current ~80 mA (average during RF transmission) Environmental Operating Temp. –40°C to +85°C Certifications FCC, CE, SRRC, RoHS, KCC, REACH Dimensions 18.00 mm × 25.50 mm × 3.10 mm ± 0.10 mm
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