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| Name | WiDo |
Beetle ESP32 |
FireBeetle ESP8266 |
FireBeetle ESP32 |
| SKU |
DFR0321 |
DFR0575 |
DFR0489 |
DFR0478 |
|
Microcontroller |
CC3000 |
ESP32 |
ESP8266 |
ESP32 |
|
Power supply interface |
USB or DC2.1 |
USB |
USB or 3.7V Lipo |
USB or 3.7V Lipo |
|
USB Powered or External (V) |
7 - 12 |
3.5 - 6.5 |
3.3 - 5.0 |
3.3 - 5.0 |
|
Operating Voltage (V) |
5V |
3.3V | 3.3V |
3.3V |
|
CPU Frequency (MHz) |
16 |
240 |
160 |
240 |
|
Flash(M) |
- |
16 |
16 |
16 |
|
SRAM(KB) |
- | 520 | 50 | 520 |
|
Analog pins |
6 | 4 | 1 | 5 |
|
Digital pins |
14 | 4 | 10 | 10 |
|
Wi-Fi protocol |
802.11b/g | 802.11b/g/n | 802.11b/g/n | 802.11b/g/n |
| Frequency range |
2.4 GHz | 2.4 - 2.5 GHz | 2.4 - 2.5 GHz | 2.4 - 2.5 GHz |
|
UART |
1 | 1 | 1 | 1 |
|
I2C |
1 |
1 |
1 |
1 |
|
I2S |
1 |
1 | 1 | 1 |
| SPI |
1 |
1 |
1 |
1 |
|
Compatible IDE |
Arduino IDE 1.6+ |
Arduino IDE 1.6+ |
Arduino IDE 1.6+ |
Arduino IDE 1.6+ |
|
Download Mode |
Micro USB |
Micro USB |
Micro USB |
Micro USB |
|
Arduino UNO Compatible |
√ |
× |
× |
× |
|
Lipo Charger Support |
× |
× |
√ |
√ |
|
Dimension(mm) |
75*54 |
35*34 |
58*29 |
58*29 |
|
Weight (g) |
30 g | 12 g | 24 g | 24 g |
|
Key Features |
On board 2.4G PCB Antenna and SD card slot. |
Integrate a Dual-Core ESP-WROOM-32 module. Support MCU and Wi-Fi &Bluetooth dual-mode communication. V shaped gilded I/O interface, can be sewn on clothes directly. |
Arduino、RTOS、microPython Programming Support. Built-in 32-bit Tensilica L106 MCU and 10-bit ADC. |
Mobile BLE APP Connection Support. Two way H-bridged Motor Driver with 2A maximum current and wireless socket. |
You may also check Bluetooth microcontrollor selection guide to get more information.
This microcontroller enables users to directly burn programs via the on-board USB interface. Meanwhile, Bluetooth and WIFI are integrated in the microcontroller for supporting more applications. With this Beetle-ESP32, you can easily build up your dreaming project.
Installing the ESP32 Board in Arduino IDE - DFRobot
