Specification:
Digital I / O digital input / output terminal: 0 to 13.
Analog I / O Analog inputs / outputs: 0 to 5.
Support ISP download function.
Input voltage: No external power supply when connected to the computer USB, external power supply 5V ~ 9V DC voltage input.
Output voltage: 5V / 3.3V DC.
Using Atmel Atmega328 microprocessor controller.
Dimensions of shell: 79.5 x 64.5 x 21mm
Package Type:
All goods will pack into cartons and wrapped full of waterproof tape before shippment .
We can accept customized package to meet different requirements :
1.Every item will separately pack into plastic bag ,component, module can be packed in anti static bag .
2.Some fragile products such as the display screen can be packed in bubble bag .
3.Some large machines can be packed in wooden cases.
4.We can lable JH code or client's code on package so that customers can check easily after receive goods.
Package includes:
Please confirm the style before placing orders
Any questions, please contact with your sales
特征：
1.引脚更改：在Aref引脚旁边添加两个I2C引脚(SDA和SCL)，仅复制
模拟4和5，而不是额外的I2C接口)。此外，还在两个引脚旁边添加了两个引脚。
重置，一个是IOREF。可以使膨胀板适应星载电压，这
PIN刚刚告诉膨胀板当前的星载电压是什么(例如UNO是5V，
可以看作是复制的电源引脚，不提供水平拉升)，另一个则是以后。
使用的占位符。
2.更稳定的复位电路。重置按钮的位置也发生了变化，
已被移至USB接口附近的板角，使其更容易按下。
3.ATmega16U2取代8U2，这并不意味着使用16K闪存的R3可以使您的
代码运行得更快。此更新是针对USB接口芯片的。理论上，它允许UNO模拟
USB HID，如MIDI/Joybar/键盘
USD