# Arduino UNO主控板

![](/files/-LWiOE_D9EYssXCM5HL4)

## 概述

针对国内实际情况，在Arduino UNO R3的基础上，优化了USB驱动芯片，解决了盗版系统驱动安装失败的问题。采用沉金工艺，经久耐用，美观大方。

## 参数

* 兼容Arduino UNO R3 板子
* 处理器：ATMEGA328P
* CH340 USB芯片
* 电池输入电压 ：7.0 V\~12.0V
* Bootloader：Arduino Uno
* 时钟频率：16 MHz
* 输入电压（推荐）：7-12V
* 输入电压（限制）：6-20V
* 支持USB接口协议及供电(不需外接电源)
* 支持ISP下载功能
* 数字I/O端口： 14（6个PWM输出口）
* 模拟输入端口： 6
* 直流电流 I/O端口： 40mA
* 直流电流 3.3V端口： 50mA
* Flash 内存：32 KB (ATmega328) (0.5 KB用于引导程序）
* SRAM ：2 KB (ATmega328)
* EEPROM： 1 KB (ATmega328)
* 尺寸：68.5×53.3mm

## 接口说明

![](/files/-LWiZeWWStlqY6w6ifZP)

## 使用方式

## 原理图

[UNO R3原版原理图](https://www.arduino.cc/en/uploads/Main/Arduino_Uno_Rev3-schematic.pdf)

## CAD尺寸

[CAD尺寸](https://www.arduino.cc/en/uploads/Main/Arduino_Uno_Rev3-schematic.pdf)

## 常见问题


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