Is 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.
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Name
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
$14.9
$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.
Mobile BLE APP Connection Support. Two way H-bridged Motor Driver with 2A maximum current and wireless socket.
You may also check to get more information.
This microcontroller enables users to directly burn programs via the on-board USB interface. Meanwhile, and are integrated in the microcontroller for supporting more applications. With this Beetle-ESP32, you can easily build up .
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
