FireBeetle 2 ESP32-UE (N16R2) is a powerful IoT microcontroller that supports external Bluetooth & WiFi antennas and features 16M Flash and 2M PSRAM. This product enhances memory capacity and operating space, enabling superior performance for applications such as the LVGL graphics library for interface design and interaction. The support for external antennas with higher gain enhances the communication range of Bluetooth or WiFi, setting it apart from the onboard antenna version of the ESP32 development board.Based on Espressif’s ESP32-WROOM-32UE-N16R2 module, this product features a 32-bit dual-core processor with a clock frequency of up to 240MHz and supports MCU, WiFi, and Bluetooth dual-mode communication. It is highly suitable for a wide range of IoT scenarios. Rich peripheral interfacesIncluding 17 digital pins, 11 analog pins, 3 UART interfaces, 1 SPI interface, 1 I2C interface, 1 I2S interface, and 2 DAC interfaces, it can meet various hardware connection requirements.Dual power supply modesSupporting USB and external 3.7V lithium battery power supply, it can automatically switch between power sources in dual power supply mode. It also supports USB and external DC charging modes.Support for multiple programming methodsIncluding Arduino IDE, ESP-IDF, MicroPython, etc., catering to the programming preferences of different developers.Compact design, easy to embedWith dimensions of only 25.4mm × 60mm and a stamp hole design, it is easy to embed or integrate into PCB prototypes. The difference between ESP32-WROOM-32E and ESP32-WROOM-32UEThe ESP32-WROOM-32E uses an onboard PCB antenna. This type of antenna is realized through PCB technology, does not require separate antenna assembly, is not easily damaged by touch, and is convenient for whole machine assembly. Onboard antennas can save space, reduce costs, and because they can be carefully positioned on the board, they can provide signal integrity. However, their gain may be lower than that of external antennas.The ESP32-WROOM-32UE (this product), on the other hand, connects to an external antenna via a connector. External antennas can be installed on the outside of the device and include both omnidirectional and directional antenna types. The main advantage of external antennas is that they can provide higher gain, thereby enhancing the communication range of Bluetooth or WiFi. Furthermore, this product is one of the low-power IoT development boards in the FireBeetle series. If it does not meet your requirements, you can refer to the FireBeetle Series Selection Guide to choose a more suitable model.Features: Equipped with ESP32-WROOM-32UE-N16R2 dual-core module Clock frequency up to 240MHz, with 16M Flash and 2M PSRAM for large memory capacity- Supports external Bluetooth & WiFi antennas Low-power development board, supporting dual-mode communication of WiFi and Bluetooth Onboard GDI display interface for quick connection to display screens Onboard charging circuit and PH2.0 lithium battery interface, supporting dual-power supply and automatic switching Supports various programming methods such as Arduino IDE, ESP-IDF, MicroPython, etc. Compact design with small size, suitable for IoT projects with limited space and embedded systems Applications: IoT project prototyping IoT remote control Remote robot control Specification:Power Parameters - Input Voltage USB-C interface: 5V DC PH2.0 interface: 3.7V Li-ion VCC pin: 5V DC MCU Parameters Processor: Tensilica LX6 dual-core processor (one core for high-speed connectivity, one core for independent application development) Clock Frequency: 240MHz SRAM: 520KB ROM: 448KB Flash: 16MB PSRAM: 2MB On-chip Clock: 40MHz crystal oscillator, 32.768KHz crystal oscillator Wireless Parameters Wi-Fi Standard: FCC/CE/TELEC/KCC Wi-Fi Protocol: 802.11 b/g/n/d/e/i/k/r (802.11n, up to 150 Mbps), A-MPDU and A-MSDU aggregation, supports 0.4us protection interval Wi-Fi Frequency Range: 2.4~2.5 GHz Bluetooth Protocol: Compliant with Bluetooth V4.2 BR/EDR and BLE standards Bluetooth Audio: CVSD and SBC audio Bluetooth Frequency Range: 2.4~2.5GHz Peripheral Parameters Digital Pins × 17: IO0, IO1, IO2, IO3, IO4, IO12, IO13, IO14, IO15, IO17, IO18, IO19, IO21, IO22, IO23, IO25, IO26 Analog Pins × 11: IO0, IO2, IO4, IO12, IO13, IO14, IO15, IO25, IO26, I34, I35 UART Interfaces: ×3 SPI Interface: ×1 I2C Interface: ×1 I2S Interface: ×1 DAC Interface: ×2 Touch Interfaces: ×7 LED PWM Channels: ×16 RGB_LED: WS2812 Display Interface: GDI Other Parameters Interface Compatibility: FireBeetle V2 series compatible Module Size: 25.4mm × 60mm Weight: 23.4g Documents: Product wiki Pinout Dimension Getting Started (Use for the first time) Arduino TutorialsEsp32-wroom-32e/32ue datasheet Schematic 2D File STP File Shell stl file Product Includes: FireBeetle 2 ESP32-UE (N16R2) IoT Microcontroller x1 2.4GHz WiFi and Bluetooth antenna x1 18pin-2.54mm Pitch Pin x1 18pin-2.54mm Pitch Pin Female x1 14pin-2.54mm Pitch Pin x1 14pin-2.54mm Pitch Pin Female x1
