Catalog > Internet of Things (IOT) Related Products > DFRobot DFRobot FireBeetle ESP32 IOT Microcontroller FireBeetle ESP32 IOT Microcontroller DFR FIREBEETLE ESP-WROOM-32 MCU DFR0478 FireBeetle ESP32 IOT Microcontroller (Supports Wi-Fi & Bluetooth) 297.38 ZAR inc for 1 Each 0 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview The DFRobot FireBeetle series offers optimized low-power microcontrollers designed specifically for IoT projects. In this series, the FireBeetle ESP32 stands out as a formidable IoT controller. This ESP32 development board integrates the dual-core ESP-WROOM-32 module, supporting dual-mode communication for microcontroller, Wi-Fi, and Bluetooth. As a result, ESP32 microcontroller to find wider applications in low-power IoT projects, encompassing a broader range of possibilities. Features Equipped with the ESP-WROOM-32 dual-core chip, operating at a frequency of 240MHz, and featuring 16MB Flash and 520KB SRAM, it supports dual-mode communication via WiFi and Bluetooth. Supports dual power supply from USB and an external 3.7V lithium battery with automatic switching functionality. Compact in size, making it ideal for IoT low-power projects with limited space. Arduino IDE compatible, enabling convenient development with one-click downloading. 5. Supports various programming methods, including Arduino IDE, IDF, Micropython, and Mind+ graphical programming. Specifications Working voltage: 3.3V Input voltage: 3.3V~5V Support maximum discharge current: 600mA Support maximum charge current: 500mA Support USB charging Processer: Tensilica LX6 dual core processer (One for high speed connection; one for independent programing) Frequency: 240MHz SRAM：520KB Flash：16MB Wi-Fi standard：FCC/CE/TELEC/KCC Wi-Fi protocol: 802.11 b/g/n/d/e/I/k/r (802.11n, high speed can reach to 150 Mbps), converge A-MPDU and A-MSDU, supporting 0.4us protecting interval Frequency range: 2.4~2.5 GHz Bluetooth protocol: Comply with BR/EDR/BLE standard of Bluetooth v4.2. Bluetooth audio: the current under low power consumption of CVSD and SBC is 10μA Working current: 80mA in average Frequency range: 2.4~2.5GHz Support one-key downloading. Support micropython On-chip clock: 40MHz crystal and 32.768 KHz crystal Digital I/O: 10 (default setting of arduino) Simulative input: 5(default setting of arduino) SPI: 1 (default setting of arduino) I2C: 1 (default setting of arduino) I2S: 1 (default setting of arduino) LED_BUILTIN：D9 Interface: FireBeetle series compatible Working temperature: -40℃~+85℃ Dimension: 29 × 58(mm)/1.142 x 2.283(inches) The dimension of mounting hole: inner diameter 3.1mm; outside diameter 6mm References