Product Name
DFRobot Beetle Board - Compatible with Arduino Leonardo - ATmega32U4
Beetle CM-32U4 - Compatible with Arduino Leonardo - ATmega32U4
DFRobot Beetle BLE - The Smallest Board Based on Arduino Uno with Bluetooth 4.0
Figure
SKU
DFR0282
DFR0816
DFR0868
DFR0575
DFR0339
Microcontroller
ATmega32u4
ATmega32u4
ESP32-C3-MINI-1U
ESP-WROOM-32D
Atmega328p
CPU Frequency
16MHz
16MHz
160MHz
240MHz
16MHz
SRAM
2.5KB
2.5KB
400KB 8KB RTC SRAM
520KB
2K
ROM
1KB
1KB
384KB
448KB
1K
Flash
32KB
32KB
4MB
16MB
32KB
IO Pins
10
11
13
12
12
Analog Input
5
2
6
4
4
UART
1
1
2
1
1
I2C
1
1
1
1
1
USB Socket
Micro USB
Type-C
Type-C
Micro USB
Micro USB
Dimension
20*22mm
22*20.5mm
25*20.5mm
35*34mm
28.8*33.1mm
Features
Beetle is a low-cost micro Leonardo controller for electronics enthusiasts. It has V-shaped large-size IO ports that are very suitable for wearable projects.
Beetle CM-32U4 is the upgraded version of Beetle. It is optimized in layout and integrates Lithium battery charging management makes it extremely suitable for battery-powered projects.
Beetle ESP32-C3 is a RISC-V processor-based controller that supports Bluetooth and WiFi. The integrated Lithium battery charging management makes it convenient to use with Li-ion battery. The supported expansion board allows it to be easily connected to a screen or peripherals.
This Beetle-ESP32 is a simplified version of FireBeetle-ESP32 that supports Bluetooth and WiFi and integrates 16MB Flash and a dual-core processor.
Bluno Beetle is an Arduino controller with Bluetooth 4.0. It is fully compatible with the Bluno series.
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