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INTRODUCTION
Is FireBeetle-ESP32 too big for your projects? Why not try our newly launched Beetle-ESP32. This Beetle-ESP32 Microcontroller of 1.38”×1.34”small size is a simplified version of FireBeetle-ESP32 and specially designed for electronic engineering fans and DIY lovers. It is equipped with 4 analog ports, 4 digital ports, UART and I2C interfaces, which would be a perfect replacement of FireBeetle-ESP32.
 |  |  |  | |
| 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 |
| Price($) | $29.9 | $9.9 | $11.9 | $18.9 |
| 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
FEATURES
- A small size of 35mm×34mm
- Enable users to directly download and debug programs through Micro USB, free from programmer.
- Large-scale I/O ports with gold plating, easy to screw wire on it or to sew the board on the clothes with wires, no need to solder.
- A group of gold plating power interfaces of honeycomb type, convenient to use.
- Integrate WIFI and Bluetooth
SPECIFICATION
- USB Supply Voltage: 5.0V
- VIN Supply Voltage: DC 3.5-6.5V
- Processor: Tensilica LX6 dual-core processor (One for high speed connection; one for independent programing)
- Frequency: 240MHz
- SRAM: 520KB
- Flash: 16Mbit
- Wi-Fi Standard: FCC/CE/TELEC/KCC
- Wi-Fi Protocol: 802.11 b/g/n/d/e/i/k/r（802.11n, high speed can reach to 150 Mbps), converge A-MPDU and A-MSDU, supporting 0.4us protecting interval.
- Frequency Range: 2.4~2.5GHz
- Bluetooth Protocol: comply with BR/EDR/BLE standard of Bluetooth v4.2.
- On-chip Clock: 40MHz crystal and 32.768 KHz crystal
- Digital Interface: D2, D3, D4, D7
- Analog Interface: A0, A1, A2, A3
- I2C: 1
- Serial Port: 1
- Dimension: 35×34mm/1.38×1.34"
DOCUMENTS
SHIPPING LIST
- Beetle ESP32 Microcontroller x1