[battery]一行指令 Windows 10,查詢筆電電池健康度

good.
https://www.cool3c.com/article/130219

[Python]Anaconda Python & Pycharm 安裝

Anaconda...good

不錯的文章
How To Install the Anaconda Python Distribution on Ubuntu 16.04
https://www.digitalocean.com/community/tutorials/how-to-install-the-anaconda-python-distribution-on-ubuntu-16-04

How To Install PyCharm In Ubuntu 14.04 and 16.04

https://itsfoss.com/install-pycharm-ubuntu/

[Arduino]Visual Studio 當作 Arduino IDE進行開發Arduino

不錯的文章:

使用 Visual Studio 當作 Arduino IDE進行開發Arduino

https://dotblogs.com.tw/jason_wang/2016/01/02/visual-studio_for_arduino

[C#]使用Open XML SDK R/W excel

不錯的文章

GridView 匯出成 Excel (.xlsx) (使用 OpenXML SDK 2.5)
http://shaurong.blogspot.tw/2016/03/caspnet-gridview-excel-xlsx-openxml-sdk.html

ASP.NET Core 教學 - Open XML SDK 匯出 Excel  =>有圖解示 sheets/workbook/worksheet/sheetdata
https://blog.johnwu.cc/article/asp-net-core-export-to-excel.html

How to create an Excel file in .NET using OpenXML

http://www.dispatchertimer.com/tutorial/how-to-create-an-excel-file-in-net-using-openxml-part-1-basics/

How to: Insert text into a cell in a spreadsheet document (Open XML SDK)

https://msdn.microsoft.com/zh-tw/library/office/cc861607.aspx

[arduino Mega2560]I2C 練習

看到文章說,最大只能傳送32 bytes,有看到說更改底層的define就可使用超過 32 bytes
而這邊是為了要讀取64 bytes因為是練習,所以就把他拆而兩次讀,重點是要了解其I2C R/W程式寫法:

參考:
https://www.arduino.cc/en/Reference/Wire




#include <Wire.h>

bool send_step1_ok_flag;
bool send_step2_ok_flag;

byte buffer[64];
byte buffer_count;
byte slave_address=0x55;

void setup()
{
  Serial.begin(9600);

  while(!Serial) ;

  Serial.println("Serail port working...");

  send_step1_ok_flag=false;
  send_step2_ok_flag=false;

  Wire.begin();
}

void I2C_cmd_send(byte start_address)
{
  byte length=32;
  Wire.beginTransmission(slave_address);
  Wire.write(start_address);
  Wire.endTransmission();
  Wire.requestFrom(slave_address,length);
}

void loop()
{
  if((!send_step1_ok_flag)&&(!send_step2_ok_flag))
  {
    Serial.println("Master Send I2C cmd");
    send_step1_ok_flag=true;
    I2C_cmd_send(0);
    buffer_count=0;
  }
  else if((send_step1_ok_flag)&&(!send_step2_ok_flag))
  {
    if(buffer_count==32)
    {
      send_step2_ok_flag=true;
      I2C_cmd_send(32);
    }
  }
  else
  {
        Serial.println("Master Read finish");
      for(byte i=0;i<64;i++)
      {
        Serial.print(buffer[i],HEX);
        Serial.print(" ");
      }
      Serial.println();
   
      send_step1_ok_flag=false;
      send_step2_ok_flag=false;
       delay(1000);
     
  }

  while(Wire.available())
  {
    buffer[buffer_count]=Wire.read();
    buffer_count=buffer_count+1;
  }

}

[C#] async與await

看了之後,終於有點了解

async & await 的前世今生
http://www.cnblogs.com/jesse2013/p/async-and-await.html

[LinkIt One]Bluebooth SPP 連線&傳輸

網路上找的小程式

#include <LBT.h>

#include <LBTServer.h>

#define btName "BT_SPP"

int i=0;

void setup() {

  // put your setup code here, to run once:

Serial.begin( 9600 );

while(!Serial);

pinMode(13,OUTPUT);

if(!LBTServer.begin((uint8_t*)btName))

{

  Serial.print("Fail to start BT\n");

  return;

}

Serial.print("BT server is started\n");

for(int i=0;i<3;i++)

{

  digitalWrite(13,HIGH);

  delay(300);

  digitalWrite(13,LOW);

  delay(300);

}

}

void loop() {

  // put your main code here, to run repeatedly:

uint8_t buf[64];

int bytesRead;

if(LBTServer.connected())

{

   

   bytesRead = LBTServer.readBytes(buf, 1);

   if(bytesRead)

   {

      Serial.printf("RECV DATA:%x\n",buf[0]); 

   }

   else

   {

      Serial.print("Connected\n"); 

   }

}

else

{

  Serial.printf("Not connected:%d\n",i++);

  LBTServer.accept(5);

}

將之前的 PC程式,修改client 端:

//PC write

 buffer[0] = 0x05;

perStream.Write(buffer, 0, 1);

感動勒....有通聯