This FireBeetle 2 development board has 16M Flash and 2M PSRAM, which helps to drive applications like the LVGL graphics library used in interface design and interaction. Powered by Espressif's ESP32-WROOM-32E-N16R2 module, it includes a 32-bit dual-core processor running at up to 240MHz.
Supporting USB-C and an external 3.7V lithium battery power supply, it can automatically switch between power sources in dual power supply mode. It also has USB and external DC charging modes. This board is great for IoT projects with dual-mode communication support for WiFi and Bluetooth.
The main advantage of external antennas is that they can provide higher gain, which improves the communication range of Bluetooth or WiFi.
Features
Equipped with ESP32-WROOM-32E-N16R2 dual-core module
Clock frequency up to 240MHz, with 16M Flash and 2M PSRAM for large memory capacity
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, Micro-Python
Compact design, small size, suitable for space-limited and embedded IoT projects
What's on Board
No.
Function
Description
1
USB Interface
Program download and power supply, 4.75V-5.5V compatible
2
Charging Indicator
Red LED for indicating charging status: 1. Off when fully charged or not charged; 2. On when charging; 3. Quick flash when powered by USB, and no battery connected.
3
User Button
Controlled by pin IO27/D4
4
Li-ion Battery Port
Support 3.5V-4.2V
5
Onboard RGB Light
WS2812 RGB LED, controlled by pin IO5/D8
6
Onboard LED
LED controlled by pin IO2/D9
7
Reset Button
Press to reset the program
8
Low-power Solder Jumper Pad
Designed for low power mode and default to be connected. Slightly cut off the thin wire with a knife to disconnect it.
Note: when the pad is disconnected, you can only drive RGB LED light via the USB Power supply.
9
GDI
DFRobot dedicated Display interface. Refer to the GDI part of this page.
10
ESP32-E Module
ESP32-WROOM-32E-N16R2
Specifications
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)