有质量问题，请及时联系客服 ，上过机的无法退换，介意勿拍！！
送30cmUSB线一条 ！！
资料麻烦自行下载
http://pan.baidu.com/s/1gdgRaa3
http://pan.baidu.com/s/1gdgRaa3
http://kb.open.eefocus.com/index.php?title=Arduino_Mega2560
Summary
Microcontroller | ATmega2560 |
Operating Voltage | 5V |
Input Voltage (recommended) | 7-12V |
Input Voltage (limits) | 6-20V |
Digital I/O Pins | 54 (of which 15 provide PWM output) |
Analog Input Pins | 16 |
DC Current per I/O Pin | 40 mA |
DC Current for 3.3V Pin | 50 mA |
Flash Memory | 256 KB of which 8 KB used by bootloader |
SRAM | 8 KB |
EEPROM | 4 KB |
Clock Speed | 16MHz |
没质保，有质量问题不退换！！