Microcontroller:ATmega328P Digital I/O port: 0~13 Analog I/O port: 0~5 Supports ISP download function Input voltage: When connected with PC USB, there is no need for external power source; for external power source: 5V-9V DC voltage input. Output voltage: 5V DC and 3.3V DC. Parameters: Microcontroller:ATmega328P Operating Voltage:5V Digital I/O Pins 14 (of which 6 provide PWM output) PWM Digital I/O Pins:6 Analog Input Pins:6 DC Current per I/O Pin:20 mA DC Current for 3.3V Pin:50 mA Flash Memory: 32 KB (ATmega328P), of which 0.5 KB used by bootloader SRAM:2 KB (ATmega328P) EEPROM: 1 KB (ATmega328P) Clock Speed:16 MHz
