FireBeetle 2 Board ESP32-E

The FireBeetle 2 Board ESP32-E from DFRobot is a development board with the ESP-WROOM-32E module for Wi-Fi and Bluetooth. It is designed for low power consumption and has a charging circuit for a lithium battery with PH2.0 connector, charged via USB-C. A DFRobot display is connected to the GDI socket with a flat cable. It is programmed with the Arduino IDE or MicroPython without switching the boot mode by hand.

With soldered female headers there is the FireBeetle Board ESP32-E with soldered socket strips. More memory with 16 MB flash and 2 MB PSRAM is offered by the FireBeetle 2 ESP32-E IoT Development Board 16M Flash 2M PSRAM.

Recommended Accessories:

• 1.54" 240x240 IPS TFT LCD Display with MicroSD
• Gravity IO Expansion Shield for FireBeetle 2 (ESP32-E/M0)
• JST 2.0 Lipo Connection Cable 15cm with Plug

Features:

• ESP-WROOM-32E, two cores up to 240 MHz, Wi-Fi and Bluetooth
• USB-C for programming and power
• Charging circuit for 3.7 V lithium battery with PH2.0 connector, charging LED
• GDI socket for DFRobot displays
• WS2812 RGB LED on IO5, LED on IO2, button on IO27
• Capacitive touch inputs
• Mounting holes 2 mm
• According to DFRobot not compatible in pins and size with the first FireBeetle series, nor are the expansion boards

Application Examples:

• Sensor nodes with battery and deep sleep
• IoT devices with Wi-Fi and Bluetooth
• Small devices with display via GDI

Documentation:

• DFRobot Wiki DFR0654 with pinout

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR0654
• Module: ESP-WROOM-32E, dual-core Xtensa LX6, up to 240 MHz
• Memory: 4 MB flash, 520 kB SRAM
• Wi-Fi: IEEE 802.11 b/g/n, 2.4 GHz
• Bluetooth: 4.2 BR/EDR and BLE
• Power: USB-C 5 V, VCC pin 5 V, battery 3.7 to 4.2 V via PH2.0
• Logic level: 3.3 V, pins are not 5 V tolerant
• Charging current: up to 500 mA
• Discharge current: up to 600 mA
• Deep sleep current: 10 μA
• Operating current: about 80 mA on average
• Digital pins: 18, analog pins: 11, touch: 7, UART: 2, SPI, I2C, I2S, DAC: 2
• Operating temperature: -40 to 85 °C
• Dimensions: 25.4 × 60 × 7.2 mm
• Weight: 23 g

Scope of Delivery:

• 1× FireBeetle Board ESP32-E
• 1× Pin header 1 × 18
• 1× Female header 1 × 18 with long pins
• 1× Pin header 1 × 14
• 1× Female header 1 × 14 with long pins