The Beetle board is compatible with the Arduino Leonardo board. It comes with the Atmel ATmega32U4 @16MHz clock and has an extended number of interfaces: 10 digital pins, 5 analog pins and 4 pwn pins.For even greater ease of use, it is equipped with micro-USB, so direct programming and testing is no longer an obstacle. The ATmega32U4 comes with a bootloader that allows you to upload any new code applicable to Arduino Leonardo.
You can find more information here: https://wiki.dfrobot.com/Beetle_SKU_DFR0282
| Microcontroller | ATmega32u4 |
| Clock rate | 16 MHz |
| Operating voltage | 5V DC |
| Digital I / A pins | 10 |
| PWM channels | 4 |
| Analog input channels | 5 |
| UART | 1 |
| I2C | 1 |
| Micro-USB | 1 |
| Power connections | 2 |
| Flash memory | 32 KB, including 4 KB from the boot loader |
| SRAM | 2.5 KB |
| EEPROM | 1 KB |
| Size | 20mm * 22mm * 3.8mm |
Further links to "DFROBOT DFR0282 Beetle Board with ATMEGA32U4 - Arduino compatible"
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