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我試圖連接arduino uno r3直接到mysql數據庫只使用USB。我不知道這段代碼有什麼問題,所以我要求任何人來幫助我如何將mysql連接到arduino。我已經使用了由mysql提供的例子,但沒有工作,我嘗試了很多與這個主題相關的例子,但它們都不起作用。Arduino連接到Mysql使用USB
#include <SPI.h>
#include <Ethernet.h>
#include <sha1.h>
#include <mysql.h>
/* Setup for Ethernet Library */
byte mac_addr[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress server_addr(127,0,0,1);
IPAddress ip(192,168,1,177);
IPAddress gateway(192,168,1,1);
IPAddress subnet(255, 255, 255, 0);
char sqlbuf[128];
char sqlDbase[] = " USE arduinodb";
unsigned int mysqlPort=3307;
Connector my_conn; // The Connector/Arduino reference
char user[] = "arduinodb";
char password[] = "arduinodb";
boolean sqlconnect= false;
void setup()
{
Ethernet.begin(mac_addr);
Serial.begin(9600);
delay(350);
Serial.println("connecting MySQL Server..");
if (my_conn.mysql_connect(server_addr, mysqlPort, user, password))
{
sqlconnect=true;
Serial.println("Query Success!");
delay(150);
my_conn.cmd_query(sqlDbase);
}
else
{
Serial.println("Connection failed.");
}
}
void loop()
{
if (sqlconnect==true)
{
"INSERT INTO testingtbl (id, percentage, score)values('','50','50') ";
my_conn.cmd_query(sqlbuf);
Serial.print("Data stored!\n");
delay(150);
}
else
{
Serial.print("failed");
delay(1000);
}
}
你是什麼意思使用USB?您的代碼正嘗試使用以太網。這和C#有什麼關係? –