这是什么原因导致无法上传

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Arduino:1.8.5 (Windows 10), 开发板："Arduino Nano, ATmega328P"

C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino: In function 'void setup()':

C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino:54:26: warning: invalid conversion from 'const char*' to 'int8_t {aka signed char}' [-fpermissive]

     tm1637.display(0, "P");              // 胁褘胁芯写懈屑 raf

                          ^

In file included from C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino:3:0:

C:\Users\Administrator\Documents\Arduino\libraries\TM1637/TM1637.h:65:8: note: initializing argument 2 of 'void TM1637::display(uint8_t, int8_t)'

   void display(uint8_t BitAddr,int8_t DispData);

        ^

C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino: In function 'void loop()':

C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino:73:26: warning: invalid conversion from 'const char*' to 'int8_t {aka signed char}' [-fpermissive]

     tm1637.display(1, ">");

                          ^

In file included from C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino:3:0:

C:\Users\Administrator\Documents\Arduino\libraries\TM1637/TM1637.h:65:8: note: initializing argument 2 of 'void TM1637::display(uint8_t, int8_t)'

   void display(uint8_t BitAddr,int8_t DispData);

        ^

C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino:74:26: warning: invalid conversion from 'const char*' to 'int8_t {aka signed char}' [-fpermissive]

     tm1637.display(2, ">");

                          ^

In file included from C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino:3:0:

C:\Users\Administrator\Documents\Arduino\libraries\TM1637/TM1637.h:65:8: note: initializing argument 2 of 'void TM1637::display(uint8_t, int8_t)'

   void display(uint8_t BitAddr,int8_t DispData);

        ^

C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino:75:26: warning: invalid conversion from 'const char*' to 'int8_t {aka signed char}' [-fpermissive]

     tm1637.display(3, "8");

                          ^

In file included from C:\Users\Administrator\Documents\Arduino\sketch_jun19a\sketch_jun19a.ino:3:0:

C:\Users\Administrator\Documents\Arduino\libraries\TM1637/TM1637.h:65:8: note: initializing argument 2 of 'void TM1637::display(uint8_t, int8_t)'

   void display(uint8_t BitAddr,int8_t DispData);

        ^

项目使用了 5376 字节，占用了 (17%) 程序存储空间。最大为 30720 字节。
全局变量使用了483字节，(23%)的动态内存，余留1565字节局部变量。最大为2048字节。
avrdude: ser_open(): can't open device "\\.\COM3": 系统找不到指定的文件。


上传出错。查看http://www.arduino.cc/en/Guide/Troubleshooting#upload 获取建议。

在文件 -> 首选项开启
“编译过程中显示详细输出”选项
这份报告会包含更多信息。

coloz

avrdude: ser_open(): can't open device "\\.\COM3"
串口选错了/驱动没装/串口被占用

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谢谢谢谢谢谢谢谢谢谢谢谢