1. Working voltage: 5V
2. Input voltage: no external power supply or external 7V~12V DC input is required when connected to USB
3. Output voltage: 5VDC output and 3.3V DC output and external power input
4. DC current 1/0 port: 40mA
5. DC current 3.3V port: 50mA
6. Flash memory: 32KB (ATmega328) (0.5KB for bootloader)
7. EEPROM: 1KB (ATmega328)
8. Product size: 75x55x15mm
9. Arduino is a software and hardware platform based on open source code, which can call source code and programming control through Arduino IDE, and the programming language is C language
10. Arduino can perceive the environment through various sensors, and feedback and affect the environment by controlling lights, sounds, motors, etc. It is a very easy-to-use programming learning and application platform