SKU: DFR0975-U
FireBeetle 2 ESP32-S3 AI Acceleration Board is a high-performance controller with ESP32-S3-WROOM-1-N16R8 (16MB Flash, 8MB PSRAM). It features AI acceleration for speech/image recognition, onboard OV2640 camera (2MP, 68¡ãFOV), GDI for screens, and power management (Li-ion charge/on-off). Supports WiFi/Bluetooth5 LE, Mesh protocols, Matter (IoT/smart home). Program via Arduino IDE, ESP-IDF, MicroPython (C/Python).
| Parameter | Value |
|---|---|
| Operating Voltage | 3.3V |
| Type-C Input Voltage | 5V DC |
| VCC Input Voltage | 5V DC |
| Max Charging Current | 1A |
| Operating Temperature | -20~70¡æ |
| Dimension | 25.4x60mm/1x2.36¡± |
| Parameter | Value |
|---|---|
| Processor | Xtensa? dual-core 32-bit LX7 microprocessor |
| Main Frequency | 240 MHz |
| SRAM | 512KB |
| ROM | 384KB |
| Flash | 16MB |
| PSRAM | 8MB |
| RTC SRAM | 16KB |
| USB | USB 2.0 OTG full-speed |
| Parameter | Value |
|---|---|
| WIFI Protocol | IEEE 802.11b/g/n |
| Bandwidth | Support 20 MHz and 40 MHz at 2.4 GHz band |
| WIFI Mode | Station, SoftAP, SoftAP+Station combined mode |
| WIFI Frequency | 2.4GHz |
| Frame Aggregation | TX/RX A-MPDU, TX/RX A-MSDU |
| Parameter | Value |
|---|---|
| Bluetooth Protocol | Bluetooth 5, Bluetooth mesh |
| Bluetooth Frequency | 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps |
| Parameter | Value |
|---|---|
| Digital I/O | x26 |
| LED PWM | 8 Channel |
| SPI | x2 |
| UART | x3 |
| I2C | x2 |
| I2S | x2 |
| IR Transceiver | transmit channel x5, receive channel x5 |
| SAR ADC | 2 ¡Á 12-bit, 20 Channel |
| DMA Controller | transmit channel x5, receive channel x5 |
Version V1.1 and earlier
Version V1.2 and later
| Label | Description |
|---|---|
| Type-C | Type-C USB port |
| 21 / D13 | Onboard LED pin |
| 47 / D14 | onboard button pin |
| ESP32-S3 | ESP32-S3-WROOM-1-N16R8 or ESP32-S3-WROOM-1U-N16R8 module |
| RST | Reset button |
| BOOT | Boot button |
| Power Management | V1.1 and below: AXP313A V1.2 and above: three independent power supply circuits |
| ETA6003 | Li-ion battery charging management chip |
| BAT | Li-ion battery connector |
| Charge | Charging indicator ? Off: not plugged in or fully charged ? On: charging ? Blinking: battery not connected |
| GDI | GDI display interface |
| CAM | DVP camera interface |
| Pin / Interface | Description |
|---|---|
| GPIO | General-purpose input/output |
| Analog | Analog input pin |
| ADC | Analog-to-digital conversion pin |
| TOUCH | Touch sensing pin |
| SPI | SPI interface |
| I2C | I2C interface |
| UART | UART interface |
| USB | USB interface |
| JTAG | Debug interface |
| 3V3 | 3.3 V regulated output |
| VCC | Power input/output |
| Input: 5 V DC for powering the board (cannot charge Li-ion battery) | |
| Output: USB voltage when powered by 5 V USB; battery voltage when powered by 3.7 V Li-ion battery | |
| GND | Common ground |
This is a DFRobot dedicated GDI interface for connecting screens via an 18pin-FPC wire.
The pinout is as follows:
| FPC PINS | Beetle ESP32 S3 Pins | Description |
|---|---|---|
| VCC | 3V3 | 3.3V |
| LCD_BL | 21/D13 | Backlight |
| GND | GND | GND |
| SCLK | 17/SCK | SPI clock |
| MOSI | 15/MOSI | Host output, slave input |
| MISO | 16/MISO | Host input, slave output |
| LCD_DC | 3/D2 | Data/command |
| LCD_RST | 38/D3 | Reset |
| LCD_CS | 18/D6 | TFT Chip Select |
| SD_CS | 9/D7 | SD card chip select |
| FCS | 7/D6 | Font library chip select |
| TCS | 12/D12 | Touch chip select |
| SCL | 2/SCL | I2C clock |
| SDA | 1/SDA | I2C data |
| INT | 13/D11 | INT |
| BUSY | 4/D10 | Tearproof pins |
| X1 | NC | Custom pin 1 |
| X2 | NC | Custom pin 2 |
When using FPC to connect the screen, please configure the corresponding pin numbers according to the GDL demo. Normally, only three pins need to be configured on different main controllers.
Displays that support GDI:
Compatible with OV2640 and OV7725 cameras. Enable AXP313A power output when using a camera.Click to download AXP313A library(ESP-IDF and MicroPython drivers are included).
The pin list for using DVP camera interface is shown below.
| CAM PINS | FireBeetle ESP32-S3 PINS | Description |
|---|---|---|
| NC | NC | NC |
| AGND | / | Analog GND |
| SDA | 1/SDA | I2C data |
| AVDD | / | AXP313A Controllable Power |
| SCL | 2/SCL | I2C Clock |
| RST | / | Pulled up to DOVDD |
| VSYNC | 6/A2 | Frame sync signal |
| PWDN | / | Pulled down |
| HREF | 42 | Horizontal sync signal |
| DVDD | / | AXP313A Controllable Power |
| DOVDD | / | AXP313A Controllable Power |
| D9 | 48 | DATA9 |
| XMCLK | 45 | Clock signal |
| D8 | 46 | DATA 8 |
| DGND | GND | Digital GND |
| D7 | 8/A3 | DATA 7 |
| PCLK | 5/A1 | Pixel Clock signal |
| D6 | 7/D5 | DATA 6 |
| D2 | 39 | DATA 2 |
| D5 | 4/A0 | DATA 5 |
| D3 | 40 | DATA 3 |
| D4 | 41 | DATA 4 |
| NC | NC | NC |
| NC | NC | NC |
Pin connection
Connect the pin 1 of the camera to the white dot position
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