FireBeetle 2 ESP32-E Development Board Pinout and Technical Specifications
Code name: DFROBOT_FIREBEETLE_2_ESP32E
FireBeetle 2 ESP32-E development board is based on esp32 microcontroller and uses xtensa architecture. This development board has a maximum CPU frequency of 240 MHz and a flash size of 4MB.
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FireBeetle 2 ESP32-E Specs
Below you can find the specifications of FireBeetle 2 ESP32-E, such as features, connectivity options, and FireBeetle 2 ESP32-E technical specs.
Features
- 40 digital IO pins
- 16 external interrupt pins
- 16 analog input pins
- 21 PWM pins
Connectivity
- WiFi: 802.11 b/g/n (2.4 GHz)
- Bluetooth: 4.2
- WiFi: 4.2
Technical specs
| Clock Speed | 240 MHz |
| Flash size | 4MB |
| Microcontroller | esp32 |
| Architecture | xtensa |
FireBeetle 2 ESP32-E Pinout
FireBeetle 2 ESP32-E Pins Mapping Arduino IDE
Below you can find the FireBeetle 2 ESP32-E pinout. This development board provides 40 digital IO pins, out of which 16 can be used as an external interrupt pins , 16 as analog input pins and 21 pins have Pulse-Width Modulation (PWM) .
| Pin | Analog | Touch | PWM | Other |
|---|---|---|---|---|
| 0 | A7 | T1 | ||
| 1 | PWM | TX | ||
| 2 | A8 | T2 | PWM | LED_BUILTIN |
| 3 | PWM | RX | ||
| 4 | A6 | T0 | PWM | |
| 5 | PWM | SS | ||
| 12 | A10 | T5 | PWM | |
| 13 | A9 | T4 | PWM | |
| 14 | A11 | T6 | PWM | |
| 15 | A4 | T3 | PWM | |
| 16 | PWM | RX2 | ||
| 17 | PWM | TX2 | ||
| 18 | PWM | SCK | ||
| 19 | PWM | MISO | ||
| 21 | PWM | SDA | ||
| 22 | PWM | SCL | ||
| 23 | PWM | MOSI | ||
| 25 | A13 | PWM | DAC1 | |
| 26 | A14 | PWM | DAC2 | |
| 27 | A12 | T7 | PWM | |
| 32 | T9 | PWM | ||
| 33 | T8 | PWM | ||
| 34 | A2 | |||
| 35 | A3 A5 | |||
| 36 | A0 | |||
| 39 | A1 |
Default Tools
| Bootloader tool | |
| Uploader tool | esptool_py |
| Network uploader tool | |
| Bootloader address | 0x1000 |
| Flash mode | dio |
| Boot mode | dio |
| PSRAM type | |
| Maximum upload size | 1280 Kb (1310720 B) |
| Maximum data size | 320 Kb (327680 B) |
The FireBeetle 2 ESP32-E development board by default uses esptool_py uploader tool, network uploader tool for Over-the-air (OTA) uploads and bootloader tool. The bootloader starts at address "0x1000". Flash mode and boot mode for FireBeetle 2 ESP32-E development board by default is dio and dio respectively.
